Bones Street Tech Formula (STF) wheels are renowned globally for their superior speed, grip, and slide capabilities, plus they are highly resistant to flat spotting. STF allows skaters to perform confidently and precisely, and they outperform all other competing wheel models. The resilient nature of STF also means a longer lifespan, so riders enjoy more bang for their buck. Available in 103A and the99A Easy Streets™ models, skaters find an ideal blend of roll, control, and a gentler ride on varied surfaces.