SRAM PG-1050 10V - Bike cassette 12-28

First 11-32 on the road. Gears that are lower and higher than existing triple gear ratios with less redundancy and perfectly smooth gearing transitions. The wider range of gears provides efficiency for improved climbing and descending with unmatched efficiency.Specifications:- Technology Highlight(s): PowerGlide™- Speeds: 10- Sprockets on Spider: 3- Lock Ring Material: Forged 7000 series alloy- Sprocket Material: Heat-treated steel- Recommended Group: SRAM Apex®Technology:WiFLi? = Wider - Faster - Lighter:SRAMs WiFLi? Technology is based on the compact 2 x 10 - two front chainrings and 10 gears in the rear - design inherent in SRAM Apex and Rival, which delivers a wider range of gears than your standard triple, faster shifts through two chainrings and 10 gears, and with significant weight savings. Its the newest technology from the company that continues to innovate the cycling experience.