Introducing the Praxis Works Wave 1x Direct Mount Boost Chainring. The Wave™ tooth pattern swings right to left alternating lateral force to each chain link to actively retain the chain. This design creates more open areas for mud and debris evacuation and preserves chain retention in adverse conditions. Designed with mindful consideration of system friction, the Wave™ design actively engages the chain but has much less wear than competing designs — spreading the load over large surface areas instead. Tough enough for Enduro, Downhill, and also weight conscious for XC riding. These MTB Wave Tech rings are machined from 7075-T6 aluminium and Hard Anodized to take a beating.