WHEELS MANUFACTURING REPLACEABLE DERAILLEUR HANGER/DROPOUT 239 trek kids Optimal AirLine-back ventilation

Optimal AirLine-back ventilation

This hydraulic 2-piston caliper features a flat-mount design and comes equipped with K04S metal disc pads

The ViZ450 features 5 LEDs

1 x Kryptonite Keeper Mini Folding Lock

WHEELS MANUFACTURING REPLACEABLE DERAILLEUR HANGER/DROPOUT 239 trek kids Optimal AirLine-back ventilationPrecision engineered replacement derailleur hanger from Wheels Manufacturing, crafted in their Colorado workshop to exacting tolerances. The 239 model ensures perfect alignment and reliable shifting performance. Built to restore your bike's drivetrain geometry with the accuracy of original equipment. Features CNC machined 6061 aluminum Black anodized finish Attaches to frame with (1) M4x10 Socket Head Screw Fastener Included Replaces Felt Part #921055