Pro-Wheel Racing Components is a manufacturer of high quality MX, off-road, and ATV products. They have created quality products at a reasonable price, enabling all aspects of riders to be able to utilize Pro-Wheel Racing Components. From 2002, Pro-Wheels core product, Rims, have evolved into some of the best rims on the market today. Through testing in the lab and field testing on race teams, Pro Wheel is now in the 3rd generation of rims. Generation III rims are lighter and stronger than most others. Generation III rims. Manufactured from 7000 series aircraft-quality aluminum. New alloys and welding techniques to assure quality and strength. Designed to fit O.E.M., requiring no special lacing procedures. Constantly tested and used by top professional race teams. Rim Specifications: Rim type: Rear. Rim size: 2.15" x 19". Spokes: 32 holes. Note: Rim only, spokes sold separately.