7005-grade aluminum track frame, 1-1/8" carbon fork * The matte black and hi-vis yellow 7005-grade aluminum frame is the highest grade on the market, which translates roughly to strong and light * The rear triangle is secured with aluminum track drop-outs and the front-end is lightened even further with a bladed carbon track fork * Please note that the front and rear brakes included are not intended to be used with the stock UNMACHINED wheels * Size 49cm; Recommended rider height: 5"0" to 5"3"