Beefed Up 4 Inch Sprocket Brake Hub Kit With One Inch Bore And Quarter Inch Keyway For 420 Chain, 50 Tooth Rear Drive Sprocket, Four Hole Mount, Fits Go Kart, Mini Bike, Predator Engines, Dune Buggy, And Drift Trike Builds
✔️ 1" bore, 1/4" keyway, 50T sprocket, 4-hole mount
This heavy-duty sprocket brake hub kit is designed for 4" hubs with a 1" bore and 1/4" keyway, and fits Predator 212cc/196cc engines, mini bikes, go-karts, dune buggies, and drift trikes. Package includes 1 x Sprocket Hub, 1 x 50T Sprocket, 1 x Keyway, 4 x Screws, and 4 x Nuts for easy install. It accepts #420 chain.
✅ 4" sprocket brake hub with 1" bore and 1/4" keyway for #420 chain
✅ 50T rear drive sprocket included
✅ Four mounting holes on a 68.5mm bolt circle; center hole 41mm
✅ Overall diameter 205mm; mounting hole diameter 6mm x4
✅ Includes hub, 50T sprocket, keyway, screws, and nuts
💡 What is a sprocket brake hub kit used for in go-kart and mini bike builds?
It's a handy drivetrain upgrade that bundles hub, brake interface, and sprocket for a straightforward install.
- ready-to-mount hub with 1" bore and 1/4" keyway
- includes 50T rear sprocket for #420 chain and keyway
- four-hole mounting pattern on a 68.5mm bolt circle with 6mm holes
- durable 45# steel construction for long-lasting use