Original Cannondale HollowGram crank arm for model year 2021. This one piece hollow crank arm is a high end upgrade option for road, mountain, and gravel bikes.
- Compatible with Cannondale SpideRing chainrings, spiders, and BB30 spindles.
- New self extracting bolt makes removal easy without special extraction tool.
- Claimed weight at 172 grams per arm including hardware
- Available in 165, 170, 172.5, and 175mm lengths in left and right specific arms.
- Interface: Cannondale BB30