FRAME DETAILS:

The OS20 2.0 Pro XL Race Frame is all new for 2025. Although it still has our race winning geometry, the frame now features wrap around seat stays, a slightly shorter seat tube and our all new built-in Disc Adapter. Axle mounted adapters are no longer needed!

Our All-American Made frame with a 21.5″ top tube is designed for riders 5′-4″+. TheOS20 set up is great for those who love the stabilitythat 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.The frame geometry wasbased on the Answer Dagger OS20 fork but most standard Pro 20″ forks will work with the OS20 wheel so you don’t need to buy a OS20-specific fork.Level 2.0 Race Frames feature Pro Taper head tubes and use a traditional EB24 Euro BB.

• Built with seamless drawn 6061 T6 Butted tubing
• Tubing issquared off at the ends to provide more welding surface
• Larger diameter square shaped down tubes stiffen and strengthen
• Chain stay tubes are tear drop shaped for a very strong and stiff back end
• 3/8″ (or 10mm) axle slots are parallel to the ground meaning no matter what position your rear wheel is in; the frame geometry will not change
• Thicker 3D drop-outs for extra stiffness when using a Disc Brake which still allow the use of regular chain tensioners for ease of rear wheel installation and rear wheel position.
• All Crupi frames still feature brake posts for use with all V-Brakes
• With Crupi’s new Disc Adapter kit, multiple Hydraulic Disc Brake kits will fit this frame including Tektro, TRP Evo and Slate, and all Shimano kits (Hope, Avid & all Mechanical kits do not fit)
• Must use Crupi’s Disc Adapter kit and 120mm rotor for proper fit

NOTE:All Crupi frames are hand built here in the USA and are often sold out. We have new frame orders being made all the time so if the bike size or color is not in stock, please contact us to be put onto our priority list so when that frame becomes available, you will have the 1st opportunity to get it.