Does this part fit my bike?

Find your bike under "Fits these bikes" below, or open your bike's "Rear wheel" region page. The verdict there is computed from this part's requirements against the bike's cited facts — with its confidence and sources.

What does "does not fit" mean here?

That a fact on file for the bike contradicts a requirement of this part — a confident no, with both values shown.

Wolf Tooth Rear Axle for Syntace X-12, 12×142 mm, 159 mm, AXLE12-159-100-X12

Name: Wolf Tooth Rear Axle for Syntace X-12, 12×142 mm, 159 mm, AXLE12-159-100-X12
Brand: Wolf Tooth

Wolf Tooth rear thru-axle. Needs from your bike: Rear axle spacing, Rear thru-axle thread, Rear thru-axle length, Rear thru-axle head seat and Rear axle threaded portion length.

Your configuration

Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.

Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet.
Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet.
Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet.
Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet.

Why? The facts we compared (5 dimensions compared)

Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file
Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file
Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file
Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file

Sources:

Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30)
Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)

Check configuration and return to bike

The interfaces involved in this repair still need verification before buying.

See the precise identity, documented pieces and what still needs confirmation.

Wolf Tooth Syntace X-12 rear axle, 159 mm, AXLE12-159-100-X12

The Wolf Tooth Rear Axle for Syntace X-12, 12×142 mm, 159 mm, AXLE12-159-100-X12 is a rear thru-axle (component). It requires 5 things of a bike — Rear axle spacing, Rear thru-axle thread, Rear thru-axle length, Rear thru-axle head seat and Rear axle threaded portion length — read from Wolf Tooth Components. On every bike page its verdict is computed from those requirements against the bike's cited facts: when a fact is missing the answer is "unknown", never a guess.

Requires — Rear axle spacing	Thru-axle, 142 × 12 mm
Requires — Rear thru-axle thread	M12 × 1.0
Requires — Rear thru-axle length	159 mm
Requires — Rear thru-axle head seat	Syntace X-12 conical seat
Requires — Rear axle threaded portion length	12 mm

Mounting requirements to check: Rear axle spacing, Rear thru-axle thread, Rear thru-axle length, Rear thru-axle head seat and Rear axle threaded portion length. Compatibility requires bike measurements confirmed by two independent sources. Otherwise, the verdict shows "Fit checks required" with the specific checks to complete.

Does this part fit my bike?: Find your bike under "Fits these bikes" below, or open your bike's "Rear wheel" region page. The verdict there is computed from this part's requirements against the bike's cited facts — with its confidence and sources.
What does "does not fit" mean here?: That a fact on file for the bike contradicts a requirement of this part — a confident no, with both values shown.

Standards

Thru-axle, 142 × 12 mm
M12 × 1.0
159 mm
Syntace X-12 conical seat
12 mm

Needs from your bike: Rear axle spacing: Thru-axle, 142 × 12 mm · Rear thru-axle thread: M12 × 1.0 · Rear thru-axle length: 159 mm · Rear thru-axle head seat: Syntace X-12 conical seat · Rear axle threaded portion length: 12 mm

Rear thru-axle

Fits these bikes

Brompton C Line 12-speed	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Canyon Grail CF SL 7	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Canyon Ultimate CF 7 (5th generation · US build 4612)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Defy Advanced 2 (2025)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Escape 3 (2024)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Fathom 29 2 (2022)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Glory Advanced (2025)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Propel Advanced 2 (2027)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Reign 29 2 (2021)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Revolt Advanced 2 (2025)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Roam 2 Disc (2021)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Talon 2 (2025)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Talon E+ (2026)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant TCX Advanced Pro 2 (2023)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant Trance X 29 2 (2022)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Giant XTC Jr 24 (2015)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Kona Sutra	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Liv Flourish 2 (2017)	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
State Bicycle Co. Core-Line Wulf	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)
Surly Disc Trucker 700c (2nd generation (2020 platform))	Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part. Rear axle spacing : Thru-axle, 142 × 12 mmCheck your installed setup or its technical sheet. Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet. Rear thru-axle length : 159 mmCheck your installed setup or its technical sheet. Rear thru-axle head seat : Syntace X-12 conical seatCheck your installed setup or its technical sheet. Rear axle threaded portion length : 12 mmCheck your installed setup or its technical sheet. Why? The facts we compared (5 dimensions compared) Rear axle spacing (safety-critical): bike nothing on file · part Thru-axle, 142 × 12 mm — not on file Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file Rear thru-axle length (safety-critical): bike nothing on file · part 159 mm — not on file Rear thru-axle head seat (safety-critical): bike nothing on file · part Syntace X-12 conical seat — not on file Rear axle threaded portion length (safety-critical): bike nothing on file · part 12 mm — not on file Sources: Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30) Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)

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Sources

The spec sheets we read. Every fact above cites one of them.

Wolf Tooth Components — Rear Axle for X-12 — exact AXLE12-159-100-X12 / 12×142 variant (tier 1, read 2026-09-30)
Wolf Tooth Components — Rear axle measurement guide — Syntace X-12 1.0×159 drawing, page 1 (tier 1, read 2026-09-30)