OPEN U.P.P.E.R. Frameset

WHAT IS THE
U.P.(P.E.R.)?
With road tires, it is a very fast road bike
With big road/cross/gravel tires (32-40mm), it’s a go-anywhere bike perfect for mixed surface rides and most gravel routes
With 650b mountain bike tires, it's unstoppable on very tough terrain yet much faster on pavement than you'd expect thanks to the road position

So the position lets you get out of town and reach the gravel/dirt/trails quickly (unlike a mountain bike). Space for big tires lets you tackle any route (unlike a road bike). And you can do that with one type of tire for everything or finetune your ride with multiple wheelsets or tires.

U.P.P.E.R. frameset saves approx. 180g over the U.P. Otherwise, there is no difference between the U.P. and U.P.P.E.R. in geometry, durability, stiffness, tire clearance or capability.