With this special Alulockring the spider or the Direct Mount chainring is fixed on the crank arm and so enables replacement as needed.
Note: For assembly, the special SI-star is tool Cannondale needed.
Compatibility crank: Cannondale Hollowgram SL / SISL / SISL 2 and SI
Weight: 3.4 g
The image is for illustrative purposes only and does not represent the actual product.