Feature

●Bolt Center Diameter: 4.1 inches (104 mm) Shape: Round/Round
●Narrow wide teeth profiling prevents chain from falling off without chainguide
●Compatible with 8/9/10/11 speed chains, Material: 7075 aluminum
●Single Toothless and Negative Discs
●Weight: Round 32T 41g 34T 52g 36T 55g 38T 70g 40T 75g 42T 92g Round 32T 41t 34T 52g 36T 55g

Description