heat-treated chromoly axle

Black Kevlar only

Built with a double wall alloy construction on the rims for rigidity and durability

A professional level tool set designed and built for portability

It's usually the welding where things go wrong

SD-X M58 V3 Disc/Front 20" 36 Hole Expert Rim supplier_54525278421318 heat-treated chromoly axleSD 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: