Product Description The mounting pucks from are compatible with MTB rear ends and MTB forks made of carbon, steel, titanium, and aluminum. Using metal hose clamps instead of the integrated slots is also possible – but not recommended for carbon forks. After removing the rack, you can leave the mounting pucks on the bike, allowing you to reinstall the rack quickly and easily at any time. Product Specifications: Application:All Mountain, MTB Product Features: Compatible with MTB rear ends and MTB forks made of carbon, steel, titanium, and aluminum. For use with Bad Ass zip ties only. Made from a carbon resin composite for lightweight strength. Manufacturer Number: black: PUC201 Contents: 1 x pair of mounting pucks for VR/HR MTB Including mounting hardware and protective film Manufacturer: 61560 American Lane Bend OR 97702 USA info@oldmanmountain Distributor: MERIDA & CENTURION Germany GmbH Blumenstraße 49-51 71106 Magstadt Germany vertrieb@merida-centurion.com