... sealed bearing, axle L: 103mmchainringalloy46T*1/8", CNCcrankalloy170mm, square hole, 5 arms, with alan key bolt coverbrake nill freewheel steel, 1/2 ... bolts on the topseat post alloy, 25.40*300mm, with a-headseat pin alloy, ID: 29.0, one boltPedal alloy, pedal, axle ... accidental damage) 2 years5. Front and rear axle, flywheel or chain wheel 1 year6. Electro plating, on wheel rims, rack and ...