Chain and sprockets must work in perfect harmony: that's why Campagnolo has optimised the tooth profiles of the cogset. The result is perfect synchronisation in power transmission and, thanks to the Ultra-Drive design, fast shifting.

Specifications:
Application: Road
Gearing: 10-speed
Gradation: 11-25 t, 12-23 t, 12-25 t, 13-26 t, 13-29 t
Sprocket Material: steel

Freehub Compatibility:
Campy Freehub: 10-speed Campagnolo

Technical Information:
Series: Veloce
Spider: aluminium

Features:
- sprocket synchronisation: special sprocket timing for fast and precise shifts
- less load on chain
- Ultra-Drive tooth design for immediate, quick and precise shifts

Technology:
Ultra Drive
Sprockets with an Ultra Drive design enable optimised downshifting under loads. First-class shifting performance is achieved thanks to maximum synchronisation between the sprockets and micrometric machining of the teeth. The nickel-chrome surface treatment makes the sprockets extremely resilient and extends the service life of the chain.

Model:
11-25:
- Gradation: 11-12-13-14-15-17-19-21-23-25 t
- Manufacturer Number: CS9-VLX15

Contents:
- 1 x Campagnolo Veloce 10-speed cassette
- 1 x lockring