All New for 2025, the Crupi OS20 2.0 Race Frame which is a hand-built, American Made frame now features our all-new Disc Dropout! No more hub mounted disc brake adapters as you can mount them direct to the fame with ours.

The OS20 set up is great for those who love the stability that the sightly bigger 451mm rim/tire size gives you.  OS simply stands for "Over-Sized" twenty inch wheel that some racers prefer for the stability and the extra rolling diameter of the bigger wheel.

With 3 frame sizes and multiple decal colors to choose from, the OS20 2.0 frame is the funest Oversized ride you will every have!

Check OS20 frame specs here