40 Tooth Sprocket fits 415 or #41 Chain Fits Sprocket DISC Adapters U.S.A. FREE SHIPPING!

7075-T6 grade aluminum, fits sprocket adapters.
Made in USA, works great with the thicker kit 415 chain.
This sprocket fits U.S.A. made sprocket adapters,
and Chinese made sprocket adapters with 8mm or 10mm bolts.
MBRebel Sprockets are also 6 Chainring Bolt compatible with the
Disc Hub Sprocket Adapter SKU: 20229 sold separately.
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: 6 3/4 inches or 171mm
Center Hole Diameter: 2.8 inches or 71mm
Thickness At Teeth: .170in or 4.34mm
Weight Of Sprocket: 7.5oz
Material: 7075-T6 Aluminum
Acceptable Chains: 415 chain, KMC Industrial 415 Speed Chain, #41 chain
Please view the video https://youtu.be/uiuEW-WkQYY