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

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.

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 spacingThru-axle, 142 × 12 mm
Requires — Rear thru-axle threadM12 × 1.0
Requires — Rear thru-axle length159 mm
Requires — Rear thru-axle head seatSyntace X-12 conical seat
Requires — Rear axle threaded portion length12 mm

Rear axle spacing, Rear thru-axle thread, Rear thru-axle length, Rear thru-axle head seat and Rear axle threaded portion length are safety-critical: a wrong answer could hurt you, so we say "fits" only when the bike's fact is confirmed by two independent sources. With one source the honest answer is "unknown"; with none it is "unknown — safety-critical".

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

Find this part

Choose the right variant and check the fit for your bike.

Fits these bikes

Brompton C Line 12-speedunknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Canyon Grail CF SL 7unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Canyon Ultimate CF 7unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Giant Defy Advanced 2 (2025)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Giant Escape 3 (2024)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Giant Fathom 29 2 (2022)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Giant Glory Advanced (2025)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 157 × 12 mm (Super Boost) (single-source) · part Thru-axle, 142 × 12 mm — mismatch
  • 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:

Giant Propel Advanced 2 (2027)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Giant Reign 29 2 (2021)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 148 × 12 mm (Boost) (single-source) · part Thru-axle, 142 × 12 mm — mismatch
  • 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:

Giant Revolt Advanced 2 (2025)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Giant Roam 2 Disc (2021)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Giant Talon 2 (2025)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Giant Talon E+ (2026)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 148 × 12 mm (Boost) (single-source) · part Thru-axle, 142 × 12 mm — mismatch
  • 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:

Giant TCX Advanced Pro 2 (2023)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Giant Trance X 29 2 (2022)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 148 × 12 mm (Boost) (single-source) · part Thru-axle, 142 × 12 mm — mismatch
  • 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:

Giant XTC Jr 24 (2015)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Kona Sutra (2025)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • 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:

Liv Flourish 2 (2017)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

State Bicycle Co. Core-Line (2024)unknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
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:

Surly Disc Trucker 700cunknown — safety-critical · confidence: single-source We can't answer this yet, and this is one where a guess could hurt you.
Why? The facts we compared (5 dimensions compared)
  • Rear axle spacing (safety-critical): bike Thru-axle, 142 × 12 mm (single-source) · part Thru-axle, 142 × 12 mm — match
  • Rear thru-axle thread (safety-critical): bike M12 × 1.5 (single-source) · part M12 × 1.0 — mismatch
  • Rear thru-axle length (safety-critical): bike 162 mm (single-source) · part 159 mm — mismatch
  • 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:

See all 22 bikes

Sources

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

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