Crown Federal Impact guard

The Impact Guard crown from Federal is made in two parts. The internal part is made of 6061-T6 aluminum and the external part is made of ultra resistant nylon from the same technology as the Hubguard Federal. In addition to being light and robust the Nylon part is reversible thanks to a 4 screw fastening system and is also replaceable in case of wear. Tested and approved by the whole team FederalCompatible with 19mm, 22mm and 24mm cranksets (adapters delivered with the crown) SPECS: 6061-T6 Aluminum Base Ultra Resistant Nylon Guard Reversible and replaceable Thickness 5mm Available in 25 and 28 teeth