Renthal 1230-520-49GPSI Twinring Heavy Duty Rear Sprocket - 49T helmets-dual-sport-helmets-snow These S&S Big Bore Kits

These S&S Big Bore Kits are made to take your 107in

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Renthal 1230-520-49GPSI Twinring Heavy Duty Rear Sprocket - 49T helmets-dual-sport-helmets-snow These S&S Big Bore KitsMaterial: Aluminum Sprocket Position: Rear Sprocket Size: 520 Sprocket Teeth: 49 Unique flat face design keeps weight to a minimum and means the TwinRing is as narrow as a regular chainwheel. Inner Ring is high strength Ultralight 7075 T6 Aluminum. Outer Ring is Electroless Nickel Coated steel. Outer is expanded at 200C and then fitted to inner, creating a permanent bond for the life of the sprocket. Precision CNC machined to extremely tight