SunRace 12 Speed Drivetrain MTB GroupsetTake your off-road performances further than ever before thanks to the SunRace 12 Speed Drivetrain MTB Groupset. Ideal for Cross-Country (XC) and Mountain Bike (MTB) riders who want a wide variety of top-class components all in one package. This groupset has been designed to save weight and increase maximum output, allowing you to tackle the trails at the top of your game. Rear DerailleurThe RDMZ80 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.Rear Derailleur Features: Material: Aluminium and Carbon Fibre Included: Adjustable chain stabiliser Weight: 267g11-50T CassetteSuper-lightweight and reliable, this 11-50T cassette will fit your standard freehub body and combines a wide range of gearing for everyday riding. Its strong spider, lockrings and spacers are all made from robust alloy for tackling everything that the mountains have to throw at you.Cassette Features: Material: Alloy Tooth Count: 11-50T Compatibility: Fits standard freehub body Weight: 586g12 Speed ShifterThe DLMZ3NX 12 Speed shifter combined with the RDMZ80 rear derailleur revolutionises your ride into a 1x12 warrior. Thanks to its dual release design youll not have to remove your hand from the bars for a more instant shifting experience.Shifter Features: Speed: 12 Speed Type: Dual release Weight: 125g12 Speed ChainThe 12 Speed chain offers fantastic performance and reliability while also complimenting the rest of this stunning groupset. This model also benefits from robust Chromoly construction for a smoother shifting experience as well as extra durability.Chain Features: Material: Chromoly pins and plates Speed: 12-Speed Weight: 250gBuy SunRace Components from Chain Reaction Cycles, the Worlds Largest Online Bike Store.