Open Cube Med. Pumps The new standard in road

The new standard in road tubeless ready technology

Improved imprinting of numbers to reduce wearing

An open design similar to our X-DOME™ cassette that aids in mud clearance

which are exclusively manufactured in the factory in Hefei (Asia)

- 100% Recyclable Material

Open Cube Med. Pumps The new standard in roadThe all new performance eyewear. Specifically designed with speed chasers and record breakers, road riders and triathletes in mind. The Koo Open3 (or 'Open Cube') are premium sunglasses from the maker of Kask helmets. With astonishingly clear optics and solid frames that stay where you put them, these are excellent shades. The most important aspect of any eyewear is the optical performance, so let's start there. The lens on the Koo Open Cubes is made