Our Box Four tier is for those people who just want less fuss! You're fond of Prime 9, but know 8 is enough, and surely 11-42T is plenty of range for an 8-speed cassette. Our derailleur still has the Limited Slip clutch but now arrives with a more compact cage.The custom 8-speed chain is built for abuse, although it's sophisticated enough to have its own Wide/narrow chainring. Push through fewer gears with a no-nonsense shifter.IncludesBox Four 8 Speed Single-Shift ShifterBox Four 8 Speed Wide Rear DerailleurBox Four 8 Speed 11-42T CassetteBox Four 8 Speed 116 Link Chain Natural