This lightweight & durable model is constructed from strong 6061-T6 aluminium with glass fibre & nylon composite for faster & smoother shifting than before. Packed with some of the finest top quality technologies & features, you'll have a gear for every situation from the trail to cross-country. Technologies: Tri-Pack Limited Slip Clutch: The Tri-Pack limited slip clutch is an innovative chain damper that vastly reduces derailleur cage bounce & chain slap. The system also maintains tension for better chain wrap. At its core is a clutch pack, that is capable of providing a large amount of force in a small package. Durable 3D Forged Linkages: Impact resistance is greatly enhanced by way of forging — a key manufacturing process that strengthens critical components. Tested at the premier freeride event of the season — Red Bull Rampage — this new construction has proven itself capable of performing at the highest level. Pivot-Tech: Impact resistant, spring-loaded cable stay keeps cable, housing & you out of harm’s way. ...

This superb model is specifically designed for MTB use, as its ultra-strong 6061-T6 aluminium, glass fibre & nylon composite ...

This stunning groupset focuses on the ride & not just the clicks. It's easy to use thanks to its twin lever shifter actuation ...

This superb model is an ideal replacement for use with your Box Two e-bike 9 speed drivetrain. This is perfect for replacing ...

Made from strong & durable 6061-T6 aluminium, carbon fibre & nylon composite construction, this stunning model is more than ...

Cold forged for enhanced strength, this 6061-T6 aluminium seat clamp is the ideal collar to fix your preferred seating position in place. Compatible with a wide range of seat tubes, you can take on a variety of riding styles with complete confidence that your seat won't move. ...

Constructed from robust steel & aluminium, it's compatible with Shimano HG hubs, with a cog for every section of your ride. Lightweight & durable, this cassette is an ideal off-road drivetrain essential. ...

Built with close-range gear ratios to push you up, over & back down the hill, this 7-speed cassette is strong & durable thanks to its steel & aluminium construction. Suitable for use with short cage derailleurs & most traditional MTB freehubs, this is a lightweight & reliable addition to any downhill drivetrain. ...

This Box Two chain features a nickel plating, which adds both corrosion & wear-resistance to its rock-solid hardened alloy steel construction. All Prime 9 chains have chamfered shifting edges, solid plates & solid pins to safeguard durability. Box's unique inner link spacing is engineered to grab those modern wide/narrow chainrings. Box also chose to modernise the 9 speed platform due to the chain's spirited reputation. Compatibility: • Box One Prime 9 11-50T Cassette Black • Box Two Prime 9 11-50T Cassette Black • Box Three Prime 9 Cassette Black • Box One Prime 9 Rear Derailleur • Box Two Prime 9 X-Wide Rear Derailleur Black • Box Three Prime 9 X-Wide Rear Derailleur Black • Box One Prime 9 Shifter Black • Box Two Prime 9 Shifter Black • Box Three Prime 9 Shifter Black FAQ: Is the Box Two Prime 9 Chain compatible with other 9 speed drivetrains? Yes, All Box prime 9 chains have standard external geometry that will work with most existing 9 speed drivetrains. Is the Box Two Prime 9 Chain Compatible with any wide narrow chainring? No, Box Prime 9 chains are compatible with most 11-speed wide narrow chainrings but there are some chainrings that can result in poor performance. We recommend the following 11 speed wide/narrow chainrings for best performance, Wolftooth Components, Raceface, One Up Components, Absolute Black. How should I clean my Box Two Prime 9 Chain? We suggest removing the chain from the bike & using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating. ...

This 9 speed Box Two rear mech is very similar to the Box One version however, to be more wallet-friendly, it offers a non-adjustable Tri-Pack Clutch, bushing pulleys, & some muted finishes. Box Two rear derailleurs are still optimised for 11-50T cassettes & offer durability & performance for the most demanding terrain, just at a lower price! Compatibility: • Box One Prime 9 11-50T Cassette Black • Box Two Prime 9 11-50T Cassette Black • Box Three Prime 9 11-50T Cassette Black • Box One Prime 9 Chain 126L DLC Black • Box Two Prime 9 126 Link Chain Nickel • Box Three Prime 9 126 Link Chain Polished • Box One Prime 9 Shifter Black • Box Two Prime 9 Shifter Black • Box Three Prime 9 Shifter Black FAQ: Are Box Prime 9 derailleurs compatible with Shimano "direct mount" hangers? No, Shimano direct mount hangers are proprietary & are not compatible with Box derailleurs. Is the Box Two Prime 9 Derailleur compatible with other 9 speed components? No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9. Are Box Prime 9 derailleurs compatible with drop bar (road) shifters? No, Box Prime 9 derailleurs are not currently compatible with drop bar shifters, but we do offer a clamp for our shifters to mount on some 31.8mm drop handle bars. How should I clean my Box Two Prime 9 derailleur? We suggest removing the derailleur from the bike & using a soft bristle brush or rag with soapy water or a mild de-greaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating. ...