H850a: Universal Derailleur Hanger, OEM alloy rear derailleur mech hanger, dropout replacement, M12 through-axle dropout hook

H850a Universal Derailleur Hanger is compatible with bicycle frames designed to use the SRAM (UDH). Assembly from inside, over the axle.

Compatible with models of following brands (not exhaustive):

• Allied
  Allied BC40
  Allied MTB XC Racing Bike
   
• Aventon
  Aventon Aventure M
  Aventon Ramblas
   
• BiXS
   
• Canyon
• Canyon 2021 2022 Exceed CF SLX M075-01
  Canyon Exceed CF SLX 8
  Canyon Exceed CF SLX 9
• Canyon 2021 Exceed CF M076-01
  Canyon Exceed CF 5
  Canyon Exceed CF 5 WM
  Canyon Exceed CF 6
  Canyon Exceed CF 7
  Canyon Exceed CF 7 WMN
• Canyon 2022 Exceed CF M076-01
  Canyon Exceed CF 5
  Canyon Exceed CF 6
  Canyon Exceed CF 7
• Canyon 2021 2022 Exceed CFR M112-01
  Canyon Exceed CFR LTD
  Canyon Exceed CFR Team
• Canyon 2023 Exceed CFR M112-01
  Canyon Exceed CFR LTD
• Canyon 2022 Lux World Cup M115-01
  Canyon Lux World Cup CF 6
  Canyon Lux World Cup CF 7
• Canyon 2022 Lux World Cup M116-01
  Canyon Lux World Cup CFR LTD
  Canyon Lux World Cup CFR Team
• Canyon 2022 2023 Spectral AL M114-01
  Canyon Spectral 27.5 AL 5
  Canyon Spectral 27.5 AL 6
  Canyon Spectral 29 AL 5
  Canyon Spectral 29 AL 6
• Canyon 2023 Spectral CF M120-01
  Canyon Spectral CF 8 K.I.S.
• Canyon 2021 Spectral CF M121-01
  Canyon Spectral 29 CF 7
  Canyon Spectral 29 CF 8
  Canyon Spectral 29 CF 9
  Canyon Spectral 29 LTD
  Canyon Spectral LTD AXS 29
• Canyon 2022 Spectral CF M121-01
  Canyon Spectral 27.5 CF 7
  Canyon Spectral 27.5 CF 8
  Canyon Spectral 27.5 CF 9
  Canyon Spectral 29 CF 7
  Canyon Spectral 29 CF 8
  Canyon Spectral 29 CF 9
  Canyon Spectral Mullet CF 8 CLLCTV

• Canyon 2023 Spectral CF M121-01
  Canyon Spectral 27.5 CF 8
  Canyon Spectral 29 CF 8
  Canyon Spectral Mullet CF 8 CLLCTV
• Canyon 2022 2023 Spectral CF M122-01
  Canyon Spectral 29 CFR
• Canyon 2022 Spectral 125 M144-01
  Canyon Spectral 125 CF 7
  Canyon Spectral 125 CF 8
  Canyon Spectral 125 CF 9
  Canyon Spectral 125 CF LTD
• Canyon 2022 Spectral 125 M148-01
  Canyon Spectral 125 AL 5
  Canyon Spectral 125 AL 6
• Canyon 2022 Strive CFR M147-01
  Canyon Strive CFR
  Canyon Strive CFR TLD
  Canyon Strive CFR Underdog
• Canyon 2022 Torque AL M113-01
  Canyon Torque 27.5 AL 5
  Canyon Torque 29 AL 5
  Canyon Torque 29 AL 6
  Canyon Torque 6
• Canyon 2022 Torque CF M106-01
  Canyon Torque 27.5 CF 7
  Canyon Torque 27.5 CF 9
  Canyon Torque 29 CF 7
  Canyon Torque 29 CF 9
  Canyon Torque CF CLLCTV FW
  Canyon Torque Mullet CF 8
   
• Chromag
• Chromag Rootdown Ti 2021
   
• Conway
• Conway eWME Z10
   
• Cube
• Cube Stereo Hybrid 160 HPC SL 625 27.5 2022
• Cube Stereo Hybrid 160 HPC SL 750 27.5 2022
• Cube Stereo Hybrid 160 HPC TM 625 27.5 2022
• Cube Stereo Hybrid 160 HPC TM 750 27.5 2022
• Cube Stereo Hybrid 140 HPC Actionteam 750 2022 2023 2024
• Cube Stereo Hybrid 140 HPC Pro 625 2023 2024
• Cube Stereo Hybrid 140 HPC Pro 750 2023 2024
• Cube Stereo Hybrid 140 HPC Race 625 2023 2024
• Cube Stereo Hybrid 140 HPC Race 750 2023 2024
• Cube Stereo Hybrid 140 HPC SL 750 29 2022
• Cube Stereo Hybrid 140 HPC SLT 750 2023 2024
• Cube Stereo Hybrid 140 HPC SLX 750 2023 2024
• Cube Stereo Hybrid 140 HPC TM 750 2022 2023 2024
• Cube Stereo Hybrid ONE55 C:68X SLT 750 29 2023 2024
• Cube Stereo Hybrid ONE55 C:68X SLX 750 29 2023 2024
• Cube Stereo Hybrid ONE55 C:68X TM 750 29 2023 2024
• Cube Stereo Hybrid 160 HPC Race 625 27.5 2023 2024
• Cube Stereo Hybrid 160 HPC Race 750 27.5 2023 2024
• Cube Stereo Hybrid 160 HPC Race 625 27.5 2023 2024
• Cube Stereo Hybrid 160 HPC SLX 750 27.5 2023 2024
• Cube Stereo Hybrid 160 HPC TM 750 27.5 2023 2024
• Cube Stereo ONE77 C:68X SLT 29 2022
• Cube Stereo ONE77 C:68X SLX 29 2022
• Cube Stereo ONE77 C:68X TM 29 2022
• Cube AMS ONE11 C:68X Pro 29 2023 2024
• Cube AMS ONE11 C:68X TM 29 2023 2024
• Cube AMS ZERO99 C:68X Race 29 2023 2024
• Cube AMS ZERO99 C:68X SL 29 2023 2024
• Cube AMS ZERO99 C:68X SLX 29 2023 2024
• Cube AMS ZERO99 C:68X SLT 29 2023 2024
• Cube AMS ZERO99 C:68X SLT 29 teamline 2023 2024
• Cube Stereo ONE44 C:62 Pro 2023 2024
• Cube Stereo ONE44 C:62 Race 2023 2024
• Cube Stereo ONE44 C:68X SLT 2023 2024
• Cube Stereo ONE44 C:68X SLX 2023 2024
• Cube Stereo ONE55 C:62 Race 29 2023 2024
• Cube Stereo ONE55 C:62 SLT 29 2023 2024
• Cube Stereo ONE55 C:62 SLX 29 2023 2024
• Cube Stereo ONE55 C:62 TM 29 2023 2024
• Cube Stereo ONE77 C:68X SLT 29 2023 2024
• Cube Stereo ONE77 C:68X SLX 29 2023 2024
• Cube Stereo ONE77 C:68X TM 29 2023 2024
   
• Curve
• Curve Air Kev
• Curve Big Kev
   
• Dartmoor 
• Dartmoor E-Thunderbird
• Dartmoor Thunderbird CF
• Dartmoor Thunderbird Superenduro
• Dartmoor Thunderbird FR
• Dartmoor Primal 29 2022
• Dartmoor Primal 27.5 2022
   
• Focus 
• Focus JAM
• Focus THRON
   
• Giant
• Giant Amiti-E+ 2 2D 2022
• Giant Anthem Advanced Pro 29 1 3 2022 2023
• Giant Intrigue 29 1 2 2022-2023
• Giant Intrigue Advanced Pro 29 1 2 2022 2023 
• Giant Reign E+ 0 2 MX Pro 2022
• Giant Trance 29 1 2 2022
• Giant Trance Advanced Pro 29 0 1 2022 2023
• Giant Trance X 1 3 2022 
• Giant Trance X 2 2022 2023
• Giant Trance X 29 1 2 2022 2023
• Giant Trance X Advanced E+ 0 2022
• Giant Trance X Advanced E+ 1 2 2022 2023
• Giant Trance X Advanced Pro 29 1 2022 2023
• Giant Trance X Advanced Pro 29 2 2022
• Giant Trance X E+ 1 2 3 Pro 29er 2022
• Giant Trance X E+ 2 Pro 29er 750 2022
• Giant Explore E+ 0 1 Pro DD STA 2023 
• Giant Explore E+ 1 2 DD 2023 
• Giant Explore E+ 1 2 STA 2023 
• Giant Intrigue LT 1 2 2023 
• Giant Intrigue LT Advanced Pro 0 1 2 2023
• Giant Reign 1 2 2023
• Giant Reign Advanced Pro 0 1 2 2023 
• Giant Reign sx 2023 
• Giant Stance E+ 0 1 Pro 2023 
• Giant Stance E+ 1 2023
• Giant Trance X Advanced E+ EL 0 1 2 3 2023
• Giant Trance X Advanced E+ LTD 2023
• Giant Trance X E+ 1 2 3 2023
• Giant Trance X Advanced E+ EL 1 2024
• Giant Anthem Advanced 29 2 2024
• Giant Fathom E+ 2 2024
• Giant Intrigue 29 1 2024
• Giant Intrigue Advanced 29 1 / 2 2024
  Giant Intrigue LT 1 / LT Advanced 2 2024
• Giant Intrigue X 1 / X 2 2024
• Giant Intrigue X Advanced 2 2024
• Giant Intrigue X Advanced E+ EL 1 / 2 / 3 2024
• Giant Lurra E+ 1 EX 2024
• Giant Lurra E+ 2 2024
• Giant Pique Advanced 29 2 / 3 2024
• Giant Reign 1 / 2 2024 2025
• Giant Reign Advanced 1 / 2 2024
• Giant Reign E+ 1 / 2 / 3 2024
• Giant Reign SX 2024
• Giant Trance Advanced 29 2 2024
• Giant Trance X 1 / 2  2024
• Giant Trance X Advanced 2 / 3 2024
• Giant Trance X Advanced E+ EL 1 / 2 / Elite 3 2024
• Giant Anthem Advanced 29 2 / 3 2025
• Giant Anthem Advanced 29 Frameset 2025
• Giant Faith / Faith 24 2025
• Giant Reign Advanced Frameset 2025
• Giant Reign SX 2025
• Giant Amiti E+ 3 / 4 2026
• Giant Explore E+ 1 / 1 STA / 3 / 3 Sta / 4 / 4 Sta 2026
• Giant Fathom E+ / E+ EX 2026
• Giant Lurra E+
• Giant Seek 1 2026
• Liv Seek 1 2026
• Giant Seek 2 2026
• Liv Seek 2 2026
• Giant Tempt E+ / E+ EX 2026
   
• Guerrilla Gravity 2020 2021 2022
• Guerrilla Gravity Gnarvana
• Guerrilla Gravity Pedalhead
• Guerrilla Gravity Trail Pistol
   
• Haibike
• Haibike Allmtn 6
• Haibike Allmtn 7
   
• Marin
• Marin Rift Zone 2 3 XR 2023
• Marin San Quentin 2 & 3 2023
   
• Merida
• Merida ONE-FORTY 2022
• Merida ONE-SIXTY 2022
   
• Mondraker Crafty Carbon 2022
• Mondraker F-Podium 2021 2022
• Mondraker Foxy Carbon 2022
• Mondraker Podium 2021 2022
• Mondraker Raze 2022
   
• Norco
• Norco Fluid FS3 2021
   
• Orbea
• Orbea Oiz OMX 2021
• Orbea Alma OMR 2021
• Orbea Alma OMX 2021
   
• Origine
• Origine Axxome 3 2024 +
• Origine Graxx 3 2024 +
• Origine Trail 2024 +
• Origine Theoreme FS
• Origine Theoreme TR
• Origine Theoreme 2
   
• Rotwild
• Rotwild R.X275 PRO
   
• Santa Cruz
• Santa Cruz 5010 V4 2021
   
• Scott
• Scott Genius
• Scott Genius ST 2023
• Scott Lumen eRide 2023
• Scott Patron eRide 2023
• Scott Ransom 2024
• Scott Scale 2023
   
• Silverback
• Silverback Slade MY21
   
• Specialized
• Specialized Epic EVO 2021
• Specialized S-Works Epic 2021
• Specialized Stumpjumper Evo 2021
   
• Transition
• Transition Patrol 2021
   
• Trek
• Trek Fuel EX 2020 2021
• Trek Fuel EX 8 2020
• Trek Fuel EX 9.9 ABP 2020 2021
• Trek Procaliber 9.7 2020 2021
• Trek Powerfly FS 2021
• Trek Powerfly FS 4 2021
• Trek Powerfly FS 9.9 2020 2021
• Trek Powerfly FS 9 Equipped 2021
• Trek Rail 2020
• Trek Rail 7 2021
• Trek Rail 9.7 2021
• Trek Rail 9.8 2020 2021 2022
• Trek Rail 9.9 XTR 2021
• Trek Rail 9.9 X01 AXS 2021
• Trek Session 8 GX 2022
• Trek Session 9 X01 2022
• Trek Session 9.9 29 er 2022
• Trek Slash 2021
• Trek Top Fuel 2022
   
• Vitus
• Vitus Escarpe 29 2021
• Vitus Escarpe 29 CRX 2021
• Vitus Sommet / E-Sommet 2021
   
• Whyte 2021
• Whyte E-150 S 29ER
• Whyte E-150 RS 29ER
• Whyte G-180 S
• Whyte G-180 RS
• Whyte G-180 RS 29ER
• Whyte G-180 WORKS 29ER
• Whyte T-160 S
• Whyte T-160 RS
   
• Yeti
• Yeti ACR 2021
   
• YT
• YT Capra MK3 2021

Mounting on frame:     inner
Screw Bolt: Axle nut M17х2,0mm
Supplied with mounting screw
Material:     CNC aluminium
Axle diameter:   Through axle M12х1,0mm
Color: Black
Derailleur mount type:     Standard mount

Equivalent To:
SRAM Universal Derailleur Hanger AC-DRHG-UDH-A1
SRAM UDH
AC-DRHG-MTB-A1
Cube 8660
Dartmoor Dart-A208347
Giant 1159-UNIDRHG-001
Giant 1159-HG0013-R01
Scott 286000
Trek Gear Hanger W5271425
Pilo D798
Wheels Mfg DROPOUT-404-2
Derailleur Hanger #
Marwi GH-399

In addition to protecting the frame and the derailleur from damage, the derailleur hanger have another incredibly important duty of holding the rear derailleur in the right place so that the drivetrain, wheel and frame all are perfectly synchronized. This secure and stable connection is essential for crisp shifting and overall drivetrain performance. UDH is designed to optimize gear shifting exactly by standardizing the derailleur position on the rear triangle in relation to the cassette, which means better and more consistent shifting across all bikes and simplifies gear tuning.

The UDH has built in safety features.
The UDH provides unique derailleur protection against chain jamming. It features an inner lip, allowing the chain to re-rail onto the cassette, keeping your ride chain-suck free. Unlike most fixed hangers, it has the ability to pivot back and slips slightly in the even of an impact, allowing the derailleur to pivot away from danger.

The UDH is meant to consolidate the myriad for through-axle derailleur hanger that exist in the bike industry into a single standard to create a sensible solution for replacing damaged hangers. It works with all MTB and E-MTB transmissions currently on the market from Sram, Shimano to Box, Sunrace, MicroSHIFT, TRP and other modern derailleurs.