Box One™ Chain Tensioners are extruded then CNC-machined from 7075 aluminum for an optimal balance of strength and weight. A minimalist design adds style while reducing their overall mass. Laser-etched graphics that include wheel position guides and two 10mm mounting holes ensure perfect adjustability on most frames every time you remove and replace your wheel. When used properly, Box One tensioners will protect your frame dropouts and hold your rear wheel in place. Keep in mind, however, they aren’t indestructible (neither are your dropouts). Install these lightweight chain tensioners with care and leave the 15-inch breaker bar in your toolbox.
Made in the US from 6061-T6 aluminum alloy, Box Two™ Chainrings are round and true. They fit 104 BCD four-bolt cranks and are available in black anodized with laser-etched graphics from 38 to 45-teeth.
Box One Sprocket Bolt kits include five 8.5mm front bolts, five 6mm front bolts and five 5mm rear nuts so they will fit just about any sprocket/crank combination, including those with threaded holes.
Box One 7075 Alloy Chainring bolt kits include five 8.5-mm front bolts, five 6-mm front bolts and five 5-mm rear nuts so they will fit just about any chainring/crank combination, including those with threaded holes. Please note the maximum recommended rider weight for these bolts is 120 pounds (8st 6oz).
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 and 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, and slickness. All Prime 9 chains have chamfered shifting edges, solid plates and 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 and 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.
Box Four 8 Speed Polished ChainIdeal for mountain bike riding, this 8 speed chain gives you fantastic torque strength and speed on every MTB ride. This model employs an 8 speed platform in a similar strategy to the Prime 9 model but at a great value price point. It features a polished construction that is then chemically treated to achieve corrosion resistance. Box has also engineered the inner link spacing to be a little tighter than other 8 speed chains as well as optimising it for use with the Box Four Wide/Narrow Chainring.FAQIs the Box Four Prime 9 Chain compatible with other 8 speed drivetrains? Yes, The Box Four Prime 9 chain has standard external geometry that will work with most existing 8 speed drivetrains.Is the Box Four Prime 9 Chain Compatible with any wide narrow chainring? No, we make a Wide/Narrow Chainring specific for use with Box Four 8 Speed drivetrains.How should I clean my Box Four Prime 9 Chain? We suggest removing the chain from the bike and 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.Features: Material: Hardened Alloy Steel Use: MTB Speed: 8 speed Durable Hardened Solid Pins Wide/Narrow 8 speed Specific Compatibility: Box Four 8 Speed Shifter Black Box Four 8 Speed Wide Rear Derailleur Black Box Four 8 Speed 11-42T Cassette Black Box Four 8 speed Wide/Narrow Chainring 104BCD 32T Black Weight: 364gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Box Three Prime 9 Speed Polished ChainDeveloped for MTB riding, this 9 speed chain offers incredible torque power and speed on the most challenging of mountain bike rides. This chain is polished and then chemically treated to achieve a level of corrosion resistance. All Prime 9 chains have chamfered shifting edges, solid plates and 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.FAQIs 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 and 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.Features: Material: Hardened Alloy Steel Use: MTB Durable Hardened Solid Pin Prime 9 Technology Compatible with Modern Wide/Narrow Chainrings 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 Weight: 312gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Box Two Prime 9 Speed Nickel ChainEngineered for fast and fun MTB riding, this 9 speed chain offers superb speed and powerful torque on your mountain bike. It features a nickel-plated finish, which adds both corrosion and wear-resistance to its rock-solid hardened alloy steel construction. All Prime 9 chains have chamfered shifting edges, solid plates and 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.FAQIs 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 and 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.Features: Material: Hardened Alloy Steel with Nickel finish Box's most durable chain Nickel Plated Protection Durable Hardened Solid Pins Wide/Narrow Chainring Compatible Prime 9 Technology 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 Weight: 350gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Box One Prime 9 Speed DLC ChainThis 9 speed MTB chain features a hardened alloy steel construction, which gives it reliable operation on every off-road ride. 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 and 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, and slickness. All Prime 9 chains have chamfered shifting edges, solid plates and 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.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 and 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.Features: Material: Hardened Alloy Steel Box's Best Performing Chain Durable Dual-Coating DLC & Nickel Protection Durable Hardened Solid Pins Wide/Narrow Chainring Compatible Prime 9 Technology 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 BlackWeight: 350gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Box Four 8 Speed Narrow Wide Chain RingThis mountain bike (MTB) chainring features a hard-wearing steel construction, which allows it to withstand all of the speed and torque that's associated with long days on the trails. Box has also put this model through a forging process for extra durability and 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 1x8 system. It is the first 8 speed specific chainring designed to optimise chain retention when using 8 speed chains. The tooth profile and thicknesses are tailored to match the inside geometry of the unique Box Four chain.Features: Material: Forged and CNC-machined Steel Finish: ED Black Protection Use: MTB BCD: 104 Speed: 8 speed Tooth Count: 32T Tooth Profile: Narrow/Wide Manufacturer'S Part Number: BX4P9CR32 Weight: 124gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Box Four 8 Speed ChainPerfect for mountain bike riding, the Box Four 8 Speed Chain delivers phenomenal torque strength and speed on every ride. 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. It features a polished construction that is then chemically treated to achieve corrosion resistance. Box has also engineered the inner link spacing to be a little tighter than other 8 speed chains as well as optimising it for use with the Box Four Wide/Narrow Chainring.Features: Material: Hardened Alloy Steel Use: MTB Speed: 8 speed Compatibility:Box Four 8 Speed Shifter BlackBox Four 8 Speed Wide Rear Derailleur BlackBox Four 8 Speed 11-42T Cassette BlackBox Four 8 speed Wide/Narrow Chainring 104BCD 32T Black Durable Hardened Solid Pins Wide/Narrow 8 speed Specific Weight: 364gBuy Box Components from Chain Reaction Cycles, the World's Largest Online Bike Store.
Spiral 7075 Alloy Chainring bolt kits include five 8.5-mm front bolts, five 6-mm front bolts and five 5-mm rear nuts so they will fit just about any chainring/crank combination, including chainrings and cranks with threaded holes. Key Features:laser-etched BOX logos,Lightweight at just 7 grams.Includes:(5) 8.5mm front,(5) 6mm front,(5) 5mm rear.