Chorus Crankset 10s

Brand: Campagnolo

Campagnolo Chorus 10-speed double crankset spanning the 2001-2008 era, offered in 170, 172.5 and 175 mm arm lengths with removable chainrings on a 5-bolt spider (135 mm BCD standard 53/39, 110 mm BCD compact 50/34). The bottom-bracket interface evolved over the period: early cranks used a square-taper axle, while the 2007-2008 generation switched to Campagnolo's integrated Ultra-Torque system with a 25 mm axle joined by a Hirth coupling. Arm material moved from forged aluminium (2001-2003) to carbon fibre (2004 onward), with the 2007 carbon Ultra-Torque model dropping aluminium entirely. It was made for English (BSA) and Italian threaded bottom-bracket shells.