Shimano 105 CS-HG700 11 Speed Cassette ROAD and it can automatically enter

and it can automatically enter sleep mode if it’s stationary for over 1 to 10 minutes(can be set freely) and automatically wake up when start moving

Premium YKK zippers

which means it requires less energy to reach higher speeds

thanks to Axial ClutchSmooth

Shimano 105 CS-HG700 11 Speed Cassette ROAD and it can automatically enterCompatible with GS cage rear derailleurs, the Shimano 105 CS HG700 11 Speed Cassette offers low climbing gears perfect for mixed surface riding. It's compatible with both 10 and 11 speed freehubs. Features High performance, rider tuned gearing Fits a wide variety of drop handlebar road bikes Removable spacer for compatibility with MTB hub bodies Specifications Type: HG EV Rear speeds: 11 Compatible chain: LINKGLIDE, HG 11 speed Combination name (Group