SIDI Tecno-3 Rotor System 65mm System Pair - Black/Yellow 11-13-15-18-21-24-28-32 Aluminum construction with anodized finish

Aluminum construction with anodized finish provides strength weight savings and keeps the crankset looking great

The fixable universal gear allows powerful screwdriving and easy fine adjustments

If it is greater than 52mm the Light Action will work best

6mm hex wrenches

3-Speed internal gear hub with gear ratio of 177%

SIDI Tecno-3 Rotor System 65mm System Pair - Black/Yellow 11-13-15-18-21-24-28-32 Aluminum construction with anodized finishThe SIDI Tecno 3 Rotor System is a replacement dial system for select SIDI cycling shoes allowing you to maintain a precise and comfortable fit. The cutting edge system features Dyneema cables known for their strength and light weight.