Cannondale SI-SL System

 At just 593 grams including PowerMeter, cranks, chainrings, this is SRM's lightest standard setup. Used by 2010 Giro d'Italia champion Ivan Basso and his Liquigas ProTour team, this system is designed for Cannondale's BB30 two-piece Hollowgram cranks.

Crank: Cannondale SI / SL Hollowgram crank are not included in delivery.

Chain Rings:
Bolt Circle Diameters: 130 mm
Standard: 39/53
Chainrings are not included in delivery

Bottom Bracket: BB30 SI-Hollowgram (weight: 128 g) - Not Included

Weight: 721 g with crank, chain rings and bottom bracket (128 g)

Strain Gauges: 8

Cadence Range: 30-255 rpm

Wattage Range: 0-4096 Watts

Wireless Protocol: Wireless ANT+ Sport

Accuracy: +/- 2%

Battery Life: 700 hours of use

Q-Factor: 141 mm

Compatible wireless with PowerControl 7 and PowerControl VI.

Fits on Cannondale Si Hollowgram sealed bearing and original Cannondale SI or SL Hollowgram cranks.

Cranks, chainrings and bottom bracket are not included.