We manufacture hubs in our factory for almost every discipline of cycling. From lightweight xc non dics hubs to very strong DH hubs. Our range of Pro Competion xc hubs are very light, but are very strong as they use the same internal drive mechanism as the DH hubs. The rear hub is 285grams and the front is 150grams. They can be built onto Stan's rims so that you can run the wheels tubeless again using the Stan's tubeless milk, tape and valves.