This Box One rear mech takes the advantages of legacy 9 speed drive-trains but also adds the advancements of modern 1 by drive-trains. It features a fully adjustable Tri-Pack Clutch, Forged Construction as well as optimisation for an 11-50t cassette. This allows it to step up to the durability & performance of an unparalleled level that's suited for the most demanding terrain. 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 One 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 One 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. ...

This 9 speed shifter is the only shifter on the market that comes factory stock with a hinged (and machined) clamp. It's top of the line model & comes packed with other features such as a durable cast aluminium pull lever & top shell for exceptional strength on the mountain bike trails. All Prime 9 shifters take advantage of the 9 speed's inherent durability, simplicity, & reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. & the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. 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 Chain 126L DLC Black • Box Two Prime 9 126 Link Chain Nickel • Box Three Prime 9 126 Link Chain Polished • Box One Prime 9 Rear Derailleur • Box Two Prime 9 X-Wide Rear Derailleur Black • Box Three Prime 9 X-Wide Rear Derailleur Black • Multi Shift Option Not Intended for E-Bike Use • Single Shift Option Recommended for E-Bike Use FAQ: Does the Box One Prime 9 Shifter come with a cable? Yes. All Box One Twin Lever Shifters come with a stainless steel shift cable. How do I remove the cap from the cable port to install a new cable? To remove it, use a Phillips head screwdriver & turn it counter-clockwise a quarter turn You can then push the cap out by applying pressure to the cable from the other side. Please Note: The Cable Port is not a screw that un-threads from the cable port, if you turn the cable port screw more than 90 degrees damage may occur. Is the Box One Prime 9 Shifter compatible with other 9 speed derailleurs? No, traditional 9 speed systems use a Cable Pull that is not compatible with prime 9. ...

Cold forged & CNC machined, this aluminium clamp features a quick release lever which has been treated with a "zero friction" coating that guarantees a smooth action as you find your optimum riding height. At just 28g, this lightweight clamp provides excellent strength & durability with every use. ...

CNC-machined from 6061-T6 aluminium, each spacer in this pack holds strong & allows for the most precise preloading of your headset bearings during adjustment. With five sizes ranging from 1mm to 20mm, the right adjustment is never far away. ...

This fast & reliable twin gear lever features enhanced ergonomics & thumb & index finger controls to bring you the best possible shifting experience. Smooth & accurate, this stunning model can deliver up to five shifts on the throw which ensures you can move up the cassette quickly when climbing. To top it off, this version weighs in any only 127g thanks to its lightweight machined clamp & premium cast aluminium lever. Whether you're on the trails or riding cross-country this is the perfect replacement or upgrade for fast & flawless shifting. ...

This Box Three cassette draws from both of its Box One & Box Two siblings to create a sensible all-rounder. All of this model's cogs are stamped from steel & subsequently, the larger ones are pinned to steel spiders. The main difference here versus Box Two is the use of additional weight-reducing holes on its cogs. Compatibility: • 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 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: Will the Box Three Prime 9 Cassette fit on a wheel with a Sram XD Driver? No this will only work with a HG splined Shimano 9-10-11 speed freehub body. Is the Box Three Prime 9 Cassette compatible with other 9 speed drivetrains? No, The Box Three Prime 9 Cassette is optimized for Box Prime 9 drivetrains & running other component variations can result in poor performance. How should I clean my Three Prime 9 Cassette? We suggest removing the cassette from the wheel & using a soft bristle brush with soapy water or a mild degreaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating. ...

This Box Three chain is polished & then chemically treated to achieve a basic level of corrosion resistance. 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 Three 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 Three 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 Three Prime 9 Chain? We suggest removing the chain from the bike & using a soft bristle brush or rag with soapy water or a mild degreaser. We do not recommend pressure washing, strong solvents or de-greasers as they could degrade the surface coating. ...

This Box Three rear mech simplifies the features found on the Prime 9 Box One & Two model's, making for a fully-featured value ...

This 9 speed shifter makes good use of nylon composites in both top & bottom shells as well as in the lever. Box Three is Box's performance & value tier, so this shifter sheds all the fancy trappings of the top 2 tiers but still maintains their incredible shifting characteristics. All Prime 9 shifters take advantage of the 9 speed's inherent durability, simplicity, & reliability. Not only is the shifter mechanism joyfully simplified, but fewer shifts are needed for every mile of travel. & the best part is? Prime 9 is also terribly forgiving so you won't have to constantly adjust your set-up. 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 Chain 126L DLC Black • Box Two Prime 9 126 Link Chain Nickel • Box Three Prime 9 126 Link Chain Polished • Box One Prime 9 Rear Derailleur • Box Two Prime 9 X-Wide Rear Derailleur Black • Box Three Prime 9 X-Wide Rear Derailleur Black • Multi Shift Option Not Intended for E-Bike Use • Single Shift Option Recommended for E-Bike Use FAQ:
- Does the Box Three Prime 9 Shifter come with a cable? Yes. All Prime 9 Twin Lever Shifters come with a stainless steel shift cable.
- How do I remove the cap from the cable port to install a new cable? To remove it, use a Phillips head screwdriver & turn it counter-clockwise a quarter turn You can then push the cap out by applying pressure to the cable from the other side. Please Note: The Cable Port is not a screw that un-threads from the cable port if you turn the cable port screw more than 90 degrees damage may occur.
- Is the Box Three Prime 9 Shifter compatible with other 9 speed derailleurs? No, traditional 9 speed systems use a Cable Pull that is not compatible with Prime 9.


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Perfect for aggressive trail riding, this 11 speed model also works with Box 7 speed DH cassettes, offering fast shifting & a secure hold. ...