Praxis Works Forged Chainring Sets

Detail
Praxis Works, using a superior manufacturing process, forges their chainrings from 7075 series aluminum for maximum strength and wear life. This forging, combined with Praxis' LevaTime shifting technology, creates the best possible shift performance. LevaTime combines ramps, scallops, stainless steel shift pins, and tooth profiling in carefully engineered patterns to ensure quick shifts even under load. For this reasons, Praxis chainrings are an excellent aftermarket choice for Shimano's Di2 systems. Additionally, these rings have been designed for 11-speed compatibility which allows for the use of an aftermarket 110 or 130 BCD crankset with Campagnolo's modern groupsets.

Praxis chainrings are sold in matched sets for either compact 110 BCD or standard 130 BCD cranksets.

Links
BikeRumor.com gives Praxis chainrings a perfect score!