Praxis Works, using a superior manufacturing process, forges their road 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. These design features, combined with stout construction, make Praxis chainrings 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 130 BCD crankset with modern drivetrains from Shimano, Sram, and Campagnolo.
Praxis' time trial specific 56/42 and 54/42 TT chainring sets are are machined (not forged), but are heat treated and hard anodized to increase their wear life. These chainrings are equipped the same proven LevaTime shifting design as Praxis' forged chainrings, and are compatible with 10 and 11-speed drivetrains, as well as all current electronic shifting systems.
These road and TT-specific chainring sets are designed to fit standard 5-bolt 130 BCD cranksets.
Shipping: Due to restrictions from International distributors we are not allowed to ship Praixs products to addresses in the following countries:
Australia, Austria, Belgium, Canada, China, Czech Republic, Denmark, Finland, France, Germany, Italy, Japan, Liechtenstein, Luxembourg, Malaysia, Netherlands, New Zealand, Norway, Portugal, Singapore, Slovakia, Spain, South Africa, Sweden, Switzerland, UK.
|Material||forged 7075 T6 aluminum|
|130BCD 53/39||128 grams|
|TT 130BCD 56/42||220 grams|
|TT 130BCD 54/42||191 grams|