Derailleur Hanger for GT Aggressor Pro, Marathon, Avalanche, Nomad, Sensor, Timberline Models

The Importance of the Derailleur Hanger

The derailleur hanger is a critical component of a bicycle's rear derailleur system. It is a metal extension of the rear dropout, to which the rear derailleur is mounted. If the rear derailleur is damaged, the derailleur hanger is often affected as well, and will need to be replaced.

For this reason, it is strongly recommended to carry a spare derailleur hanger when riding a mountain bike, to ensure you can quickly replace it in the event of an accident or impact.

Compatibility Considerations When purchasing a replacement derailleur hanger, it is essential to ensure compatibility with your specific bicycle model. Bike manufacturers are continuously introducing new models, so the compatibility list provided may not be exhaustive.

To ensure you are purchasing the correct part, always compare the geometry of the original derailleur hanger on your bike with the replacement part you intend to buy. This will confirm that the replacement is a perfect fit.

Replacement Part Numbers To help guide your search, here are some specific part numbers that can be used to replace the derailleur hanger:

• Replace GT part no. ATIDH0071, ATIDH0239, and ATIDH0246
• Replace KHS part no. 276

Compatibility List The following is a reference list of bicycle models and their compatible derailleur hangers. Please note that this list may not be comprehensive, as new models are continuously being introduced to the market.

Airborne: - Guardian - Seeker - Skyhawk - Delta CX - Goblin

Co-op: - REV 20 (2018-2019) - REV 24 (2018-2019)

Dahon: - QIX D8 (2016-2018)

Garneau: - TRX-1 (2013-2016) - TRX-2 (2013-2016) - TRX-3 (2015)

GT: - Aggressor Comp (2018-2020) - Aggressor Expert (2016) - Aggressor Pro - Aggressor (2013-2017) - Avalanche Elite (2016) - Avalanche Series (2006-2016) - Bump 26 inch (2016) - Hans Rey Trails (2008) - Karakoram (2011-2013) - Laguna Pro Womens - Marathon Series (2007-2010) - Nomad Series (2007-2016) - Sensor Series (2010-2013) - Stomper 24 (2018-2020) - Stomper Pro - Traffic Amp (2017) - Transeo 1.0 (2010, 2016) - Transeo 2.0 (2010, 2016) - Timberline (2007-2009) - Verb Expert (2016) - Zaskar Series (2006-2016) - Zum Series (2006-2007)

Kestrel: - Yuma (2012-2014)

Kettler: - Six Fifty 700 (2014)

KHS: - Aguila (2012-2018) - Alite 1000 (2012-2013) - Alite 2000 (2012-2013) - Alite 24 (2013-2019) - Alite 300 (2014) - Alite 350 (2012-2014) - Alite 500 (2012-2014) - DJ 24 (2014) - DJ 50 (2014) - Six Fifty 600 (2013-2015) - Six Fifty 700 (2014-2015) - Tempe (2012-2016) - Tucson (2012-2015) - Winslow (2013-2018) - Yuma (2013)

Mongoose: - ArgusFit (many GT frame models as described)

The replacement derailleur hangers are made of high-strength aluminum alloy and are anodized in black. They come complete with the necessary bolts for installation.

product information: