2021 Specialized S-Works Epic 29" Mountain Bike SRAM’s flagship XX1 Eagle AXS drivetrain is both electronic and fully wireless, giving access to the ratios on the 12-speed cassette with just a light press of a button. The system can be configured to personal preference using the AXS smartphone app which also provides information about battery life and usage. Keeping all the inevitable speed under control is SRAM’s Level Ultimate hydraulic disc brakes BEST_SELLER ROAD BIKE AND MOUNTAIN NOW IN STOCK FOR SALE! All models of Mountain Bikes, Mountain Frame, Road Bikes, Road Frame, Triathlon Bikes, Wheels, Parts and Groupsets. Also Available In Stock. We sell various types and brands of bicycles. We carry brands from top manufacturers around the world. All original. New and guaranteed. We have men's bikes in all shapes and sizes, and of course women's bikes.