This stunning model features a MTB optimised gear tooth profile which improves chain engagement & retention, so you can ride with complete confidence & navigate your way around the mountain. Its 12 speed design is engineered for superior chain retention on the trails, meaning you'll get the most of out every off-road adventure. Technologies: Dynamic Chain Engagement+: Dynamic Chain Engagement+ is a special gear teeth profile designed for use in single-chainring configurations for XC, enduro, & trail riding. It gives more chain retention & smoother pedalling
- even over bumpy terrain. Chain retention of any gear will reduce abrasion & worn out.