20x4" Fat Tire Rear Wheel 48V 1500W Rear Hub Motor One-Piece Disc Brake

20x4" Fat Tire Rear Wheel 48V 1500W Rear Hub Motor One-Piece Disc Brake

• 【48V 1500W Brushless Powerhouse】Powered by a 48V 1500W brushless gearless rear hub motor with 90N.m+ torque and 30-34 MPH top speed. Crushes 25° hills and hauls 330 lbs with ease—built for serious fat e-bike conversions, hunting rigs, and off-road snow builds.
• 【One-Piece Cast Aluminum Wheel】Forget spoke tension and wheel truing—this integral cast alloy wheel is molded in one piece for zero flex, no broken spokes, and superior impact resistance on rocks, roots, and hard landings. Lighter rotational mass than welded mag wheels, stronger than spoked rims under high torque.
• 【20x4.0 Fit & 175mm Dropout】Standard 175mm rear dropout (fits 170-175mm fat bike frames) with 135mm-compatible axle hardware optional. Pre-built for 20x4.0 fat tires, M14 shaft, 9-pin waterproof motor connector—bolt on to most 20-inch fat e-bike frames in under 30 minutes.
• 【6-Bolt Disc Brake Ready】Integrated 6-bolt ISO disc flange accepts mechanical or hydraulic rotors up to 203mm. Sealed cartridge bearings keep grit and water out; IP54 motor rating shrugs off rain, slush, and beach spray for year-round riding.
• 【All-Terrain Off-Road Dominator】From deep snow and soft sand to muddy singletrack, the cast rim disperses heat and stress evenly under continuous 1500W load. Ideal for RadRover-style upgrades, DIY 20x4 e-bike kits, beach cruisers, and private-property off-road use (check local e-bike laws for street use).