- Maximum shifting fluidity through a specially designed cage
- Incorporates a design that separates the upper from the lower semi-rod, eliminating the free stroke for more immediate, responsive upshifting
- 32mm section tires can be mounted without the risk of contact with the derailleur
- DER CPY FD20-CH12B CHORUS CH12 12s BZ-ON
Speed: 12sp
Max: 52
Cage/Mount: Braze on
Color: BLK/SIL
Wgt: 87g
Type: Mechanical