We consistently rely on Shimano to deliver quality components and no-nonsense performance, and that's what we can expect with the SLX FC-M7100 1x Crank Arms. They're designed for big days on the mountain where we're constantly climbing and thinking about the weight of our rig. The SLC FC-M7100 features easier gearing than racing groupsets for trail-riding enjoyment and a special MTB gear tooth profile for improved chain engagement and retention.