Campagnolo Chorus Ultra-Torque ST Bicycle Chainset

Lets you shift with extreme speed and incredible precision. X.P.S.S. (eXtreme Performance Shifting System), the acronym that refers to the most efficient system ever. The chainrings have been completely redesigned and the new teeth design plus the new 8 ascending and 2 descending zones of the chainring enable top-class performance.

At first glance, the Chorus 2011 chainset does not show any changes. But actually there is plenty of news hidden behind the new look.

Key Features:

• The chain shifts easily up and down the rings thanks to the new teeth design.
• X.P.S.S. eXtreme Performance Shifting System chainrings give precise and fast shifting.
• New chainring mount system is lighter and makes for easier maintenance.
• Full-carbon unidirectional-multidirectional cranks.
• Integrated ULTRA-TORQUE semi-axles.
• Compatible with Campagnolo 11 speed groupsets.
• Supplied with bottom bracket bearings.
• Weight: 683g for 170mm 39-53 chainset with bearings (PBK office scales).
• ST (Standard double) chainset is supplied with 39-53 chainrings.

Please Note: Requires Record Ultra-Torque bottom bracket cups for BSA and ITA frames or Ultra-Torque OS-Fit cups for BB30 and BB86 frames which are available separately to suit your frame.