Campagnolo Chorus 12s UT 172.5x50/34 UT crankset carbon Description-B-Bolt/Limit Screw Kit CNC aluminum inflator head fits

CNC aluminum inflator head fits Presta / Schrader valves

Rotary gear selection with no protruding indicator chain or switch box

and our testing cofirms that the performance is outstanding

Tiagra 4700 or 4703

Campagnolo Chorus 12s UT 172.5x50/34 UT crankset carbon Description-B-Bolt/Limit Screw Kit CNC aluminum inflator head fitsNew advanced carbon layup for improved performance. Differing number and location of pins and shifting zones according to chainring combination ensures optimum location of shift zones during pedal stroke . Available in multiple chainring combinations and crank arm lengths. Tooth design specific to chainring combination . Unidirectional carbon finish TECH SPECS Type Length Teeth 172. 5x50 34 Spindle Type UT Color CRBN Bolt Pattern 123x4B Weight Speed