IN STOCK NOW! - Astonishing value and really well built. We have fitted these as upgrades to customers wanting well engineered reliability in a high performance groups.
Our Box Four tier is for those people who just want less fuss! You know 8 gears is enough, and 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.
Prime 9 Technology Simple Durable Performance
Not Intended for E-Bike Use
Material Matt Black Finish Glass Fiber / Nylon Composite, Steel, Aluminium Hardware Hardened Alloy Steel Hardware