Technologies: Hyperglide+: Hyperglide+ drivetrain’s redesigned cassette & chain promotes the next generation of MTB riding by enhancing speed, shifting efficiency & smoothness over any terrain. It will help kickstart the next generation of mountain bike riding by introducing continuous pedalling over virtually any terrain. This revamped drive system & dedicated chain deliver fast shifting, efficient power transfer & chain stability like you’ve never experienced before. It helps riders adapt to drastically changing trail conditions by precisely judging the optimal shifting moment for consistently smooth operation. Quick-Link: Tool-free assembly provides great convenience to users.