Wheels Manufacturing Universal Derailleur Hanger - 487-6 For Trek ABP MTB Frames designed to accept SRAM UDH BLK/Blue MFPN=AAD2583 Uses a double hex head

Uses a double hex head interface so you don't have to use a chainring nut spanner

}Wolf Tooth Premium Headset - EC49/40 Lower Gold

bearing# 6802 ID x OD x W (mm) 15x24x5

Vendor Wheels manufacturing Manufacture Number RTA-12-160-1

Wheels Manufacturing Universal Derailleur Hanger - 487-6 For Trek ABP MTB Frames designed to accept SRAM UDH BLK/Blue MFPN=AAD2583 Uses a double hex headWheels Manufacturing Universal Derailleur Hanger 487 6 For Trek ABP MTB Frames designed to accept SRAM UDH Black Blue. Wheels Manufacturings SRAM compatible Universal Derailleur Hanger simplifies thousands of hanger designs into one universal standard. Machined completely out of aluminum this new hanger is not only strong but designed to rotate backward and slip slightly in the case of an impact preventing chain jams and protecting the drive train.