SD-X M58 V3 carbon rims will get you on the podium. Just ask the members of multiple National BMX Teams. These medium high carbon rims are very light and stiff for fast out of the gate accelleration. But at the same time strong enough for even the most demanding of race tracks. Tubeless-ready and built to be used with presta valves. The SD-X M58 V3 rims will make you ride faster than ever. ###section### Product Specs WHEEL SIZE: 20" SEAM: Carbon ERD: 376mm HEIGHT: 25mm WIDTH: 23.5mm SPOKE HOLES: 36H WEIGHT: 0.65lbs (296g) Colour: Black with Orange, Black with Lime, Black with Purple, Black with Blue, Black with White, Black with Red