[Nut Dimensions] Nut Shaft Diameter 10mm. Nut Shaft Length 6.5mm.
[Bolt Dimensions] Bolt Head Diameter 8mm. Bolt Head Length 11mm.
[Usage] Used for universal single chainring/chainwheel to fix the crank and chainring.
[Application] Fits for mountain bikes, road bike, folding bike, fixed gear bike, downhill bike, track bike, MTB, BMX, DH, etc.
[Material] Made of steel, lightweight, stable, durable, and not easy to crack or rust.