Box Four 8 Speed Wide Range Groupset - Multi Shift - 11-42T - 8 Speed Replace Images A micro texture of filaments

A micro texture of filaments segments the basic fabric into tiny squares to prevent rips – hence the name Ripstop

This also makes a fantastic tyre front or rear for a kids 20" bike as it's running the incredibly grippy Super Tacky rubber compound

Who is this item for: Riders after a lightweight breathable and protective knee pad for trail and enduro riding

and Freeride bikes

Fitting onto chainrings with 104 BCD spider mounts

Box Four 8 Speed Wide Range Groupset - Multi Shift - 11-42T - 8 Speed Replace Images A micro texture of filamentsThe Box Four range is for those people who just want less fuss! You're fond of Prime 9, but know 8 is enough, and surely 12 42T is plenty of range for an 8 speed cassette. The Box Four 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. Who's this item for: The multishift option is perfect for riders