This is top of the line tough tire from Innova tire, Co,  not those cheap knock offs that can ruin your perfect jump. BLACK 12" Rear Wheel Rim INNOVA 80/100-12 Tire w/ 41 Tooth Sprocket & Rear Brake Disc Fit most Honda XR CR 50/70/110/125 SDG Style and their China Clones; Heavy Duty aluminum Rear Rim Wheel With High Performance INNOVA tube tire. Tire size is 80/100-12 This rim should fit most Chinese made pit bikes The inner diameter of the wheel bearing is 15mm. Specifications: Color: BLACK   Condition: Brand New 15MM ID Bearing  High Performance INNOVA Tire Size 80/100-12-50M Rim Size 1.85 X 12 aluminum Tire Max Load 190 Kgs at 2.25 Bar Tire :Nylon, Tube Type Tough Gear-R 41 Tooth Sprocket (428 CHAIN) 75MM Rear Brake Disc. DISC BRAKE APPLICATION