Extreme value in the is 8 speed 12-46 T clutch derailleur drivetrain. $88 for the derailleur, cassette and shifter gets you a shifting miles for your MTB. Thanks to microSHIFT for providing a test groupset. Weights: Cassette- 579 g | Amazon Derailleur- 388 g | Universal Cycles Shifter- 155 g | Amazon KMC 8 Spd...