As beautiful as the cranks are, the most eye-catching feature of the cranks are the OPI SpideRings. Inspired by auto racing wheels, these one-piece spider and rings are 3D forged and machined from a single block of aluminum. This one-piece design saves weight and reduces chainring deflection for crisper, more precise shifts. SpideRings are available in many different configurations and are retrofittable to all HOLLOWGRAM CRANKS.
Sizes: 40T, 42T, 44T
Compatible with Hollowgram cranks (available separately)
Mfr Claimed Weight