This high-quality chainring features a hard-wearing steel construction, which allows it to withstand all of the speed & torque that's associated with long days on the trails. Box has also put this model through a forging process for extra durability & a CNC-machining process to remove any excess material while still maintaining strength. Coming complete with an ED Black Protection coating, it provides additional protection against corrosion when exploring the mountains in all-weather conditions. The Box Four Wide/ Narrow chainring completes the package for the 1x 8 system. It is the first 8 speed specific chainring designed to optimise chain retention when using 8 speed chains. The tooth profile & thicknesses are tailored to match the inside geometry of the unique Box Four chain. ...

This Box Four chain employs an 8 speed platform in a similar strategy to the Prime 9 model but at a great value price point. ...

Heat-treated for added strength & durability, this 11-Speed & Box 7 DH compatible chain gives smooth shifting & movement from its durable, alloy steel construction. Each of the 116 links is finished with a Titanium Aluminum-Nitride coating for further dependability & efficiency on long days going up & down the mountain. ...

Built from a special heat-treated alloy steel, each of the 116 links in this chain is capable of smooth movement & shifting & firm hold to cassette cogs. Finished with a Nickel plating, it works superbly with Box 11-Speed & Box 7-Speed DH cassettes. ...

Easier to adjust, greater efficiency & smoother driving are all key factors provided by this superb model which makes life ...

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 specifically designed for MTB use, so can enjoy fast & precise shifting all across the mountain. in addition, ...

Made from cold forged & CNC-machined 6061-T6 aluminium, this aesthetically awesome clamp is equipped with titanium hardware & laser-etched graphics to add a bit of colour & customisation to your seatpost. ...

Designed with a hexagonal texture pattern covering 85% of the grip, the ONE Lock On gives a superb hold area to keep you in ...

This 9 speed MTB chain features a hardened alloy steel construction, which makes it more than capable of handling every challenge that you're met with on the mountains. Classed as Box's best performing chain, this model is also equipped with a durable dual-coating with nickel-plating for protection against corrosion. This makes it suitable for use in all-weather conditions, while its durable hardened solid pins give it extra durability on the most demanding of trails. The Box One chain is protected by our dual-coating. We start with Nickel plating which aids in corrosion resistance & then top it off with the " Diamond-Like Carbon" layer. The DLC is as fancy as it sounds; a synthetic diamond nano-coating that turns up the volume on hardness, wear-resistance, & slickness. All Prime 9 chains have chamfered shifting edges, solid plates & solid pins to safeguard durability. Our unique inner link spacing is engineered to grab those modern wide/narrow chainrings. We chose to modernize 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 One 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 One 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 One 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. ...