30 Tooth Sprocket for 415 or #41 Chain Fits Sprocket Adapters U.S.A.

7075-T6 grade aluminum, fits sprocket adapters.
Made in USA, works great with the thicker kit 415 chain.
Large center hole, 2 3/4 inches diameter, for clearance of coaster brake arm.
Includes 3 Flat Head Allen Bolts 3/8ths X 1

Specifications:

Outer Diameter: 5 1/8 inches or 130mm

Center Hole Diameter: 2 3/4 inches or 71mm

Thickness At Teeth: .170in or 4.34mm

Weight Of Sprocket: 3.5oz

Material: 7075-T6 Aluminum

Acceptable Chains: 415 chain, KMC Industrial 415 Speed Chain, #41 chain