It makes the bike more stable at high speed, stops wobbling, the bike will ROLL over obstacles easier, and it will also have more ground clearance. This rim is for DISC brake only and should fit most China made pit bikes. For brake disc and sprocket size, check my brake disc or sprocket auctions.
The item "12 REAR RIM WHEEL TIRE DISC BRAKE PIT BIKE SDG COOLSTER 107 110 125cc I WM09K" is in sale since Friday, September 2, 2011. This item is in the category "eBay Motors\Parts & Accessories\Motorcycle Parts\Wheels, Tires & Tubes\Other Tire & Wheel Parts". The seller is "inu521" and is located in Ontario, California. This item can be shipped worldwide.