This Burgtec UDH hanger is the version for Trek bikes that combine ABP with a UDH hanger. The difference that matters is the included Trek ABP-specific washer, so choose it by the frame's mounting arrangement.
The hanger is forged and machined from 7075 aluminium, with a mounting screw and washer supplied. It uses an M12 x 1.0mm thru-axle thread and allows backwards rotation under a forward impact to help protect the drivetrain.
For a frame without Trek ABP, check the separate regular Burgtec UDH Hanger.
