This high-quality model's lighter & stiffer construction reduces cassette resistance, so you'll benefit from faster acceleration & increased chain security. Engineered for aggressive off-road riding, its advanced shifting performance provides you with the confidence you need to enjoy every ride. 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. Micro Spline: Micro Spline delivers a lightweight aluminium freehub body to reduce weight & 10 teeth top gear.