SLF Motion is more than Road and Tri company, we like to dirty too! Designed and machined to standout from the crowd, all ProConcept chainrings are CNC machined out of 7075-T6 Aluminum. DirectMount RaceFace ProConcept chainrings are lighter than stock offerings and are proven to be stronger.
||148TA Boost w/ 52mm Chainline
||142TA w/ 49mm Chainline