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SRAM Universal Derailleur Hanger AC-DRHG-UDH-A1

SRAM derailleur hanger. Needs from your bike: Derailleur hanger, Rear thru-axle thread and Rear axle threaded portion length.

Find this part

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

The SRAM Universal Derailleur Hanger AC-DRHG-UDH-A1 is a derailleur hanger (component). It requires 3 things of a bike — Derailleur hanger, Rear thru-axle thread and Rear axle threaded portion length — read from SRAM. 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 — Derailleur hangerSRAM UDH (Universal Derailleur Hanger)
Requires — Rear thru-axle threadM12 × 1.0
Requires — Rear axle threaded portion length12.7 mm

Mounting requirements to check: Rear thru-axle thread 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 derailleur" 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

  • SRAM UDH (Universal Derailleur Hanger)
  • M12 × 1.0
  • 12.7 mm

Needs from your bike: Derailleur hanger: SRAM UDH (Universal Derailleur Hanger) · Rear thru-axle thread: M12 × 1.0 · Rear axle threaded portion length: 12.7 mm

Derailleur hanger

Fits these bikes

Canyon Grail CF SL 7Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

Kona SutraFit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

State Bicycle Co. Core-Line WulfFit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

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.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

Tern Quick Haul D8 Gen 1Fit checks required · confidence: single-source Compatibility is not confirmed. Verify the listed mounting requirements before buying or installing this part.
  • Derailleur hanger : SRAM UDH (Universal Derailleur Hanger)Check your installed setup or its technical sheet.
  • Rear thru-axle thread : M12 × 1.0Check your installed setup or its technical sheet.
  • Rear axle threaded portion length : 12.7 mmCheck your installed setup or its technical sheet.
Why? The facts we compared (3 dimensions compared)
  • Derailleur hanger: bike nothing on file · part SRAM UDH (Universal Derailleur Hanger) — not on file
  • Rear thru-axle thread (safety-critical): bike nothing on file · part M12 × 1.0 — not on file
  • Rear axle threaded portion length (safety-critical): bike nothing on file · part 12.7 mm — not on file

Sources:

See all 21 bikes

Sources

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

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