SunRace MZ80 10-11-12 Speed MTB Rear DerailleurThe MZ80 rear derailleur offers fast and precise shifting. Boasting ultra-durable aluminium and carbon fibre construction, this model is not only robust but also lightweight, weighing in at a mere 267g. Also included is an adjustable chain stabiliser which makes it super effective when out on the trails.Features: Material: Aluminium and Carbon FibreCompatibility: SunRace shifters only Included: Adjustable chain stabiliser Weight: 267g Buy SunRace Components from Chain Reaction Cycles, the World’s Largest Online Bike Store.