The Rear Wheel Holder has a Velcro strap support any different size rims. It is also a great additional product for the Crossbar to turn it to a bike rack. With the right fork mount attached to the front Crossbar, and a Rear Wheel Holder, you are able to set bike rack, without using the rear crossbar.
TreeFrog unique 9x100mm quick release and 15x100mm universal fork mount is allow you to using 2 different bikes fork systems and going back and fort between the 2 most popular bike industry sizes, without changing the fork mount! If you have 2 or more bikes with 9x100mm and 15x100mm forks, our fork mount would be [...]