Box Components

The Box Four Crankset features a 2-piece design with an oversized bottom bracket interface. The 24mm spindle is pressed into the drive-side crank arm for durability and easy installation. The non-drive side crank arm features a 2-bolt pinch system for added strength. Our unique...

Replacement pivot bolt kit for Box One™ Brake Levers. Titanium mounting bolt

 Replacement crank spindle fixing bolt for Box Three and Box Four 2-piece cranks. Anodized Aluminum6mm Hex Key Broach Material 6061 Aluminum COMPATIBILITY Box Three CranksetBox Four Crankset

Featuring a JIS square taper standard, our oversized bottom bracket interface showcases a step-down shape specific to the crank arm length meeting at the pedal boss. Unlike alternative options, no two lengths are the same. Our durable cold-forged cranksets are available in sizes from...

RESERVE YOURS TODAY! All Box handlebars are engineered and crafted using our Oversized Technology. Handlebars have a dual purpose as they contribute to both steering and pedaling stiffness. By strategically varying wall thicknesses and tube diameters, we have moved material from 3 low-stress areas...

All Box One forks are engineered and crafted using our Oversized Technology. These forks are the single most important component in the quest for bike control. We’ve moved carbon from areas of low stress to areas that handle high load. Those muscular shoulders aren’t...

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. FEATURES 8.5mm/12mm Male Bolt6.5mm/12mm Male Bolt4mm/12mm Female BoltThread Pitch...

Box One Brake Shoes feature a stiff, cold forged and CNC-machined cartridge body and triple-compound, 70-millimeter pads for superior braking. Mounting posts that pivot allow for perfect pad alignment while silver machined accents and laser-etched graphics offer refined aesthetics.

Box One 70mm Carbon Brake Pads were formulated with a special compound compatible with carbon fiber rims. This helps keep the heat down while still creating high-performance stopping power. Paired with our Box One Brake Pad Cartridge Body so you can pull them out...

The Box One Rims feature a double-walled, eyeleted, low profile designed optimized to be lightweight and durable! Offered in both brake and brake-less variants, allow for clean and sleek wheel builds that only have rim brake tracks where they need to be. FEATURES Low...

The Box One Rims feature a double-walled, eyeleted, low profile design optimized to be both lightweight and durable! We offer these in both brake and brake-less variants. You’ll have a clean and sleek wheel build with rim brake tracks as needed. Low Profile DesignOptimized...

We looked to our exceptionally popular Phase One number plates for inspiration when we designed the new Phase One bike stand. Made from durable injection molded ABS plastic, these stands have two large carrying handles and a wide footprint for stability. They can be...

The Box One Disc Brake Adapter is designed to improve braking control on frames where disc brakes were not standard. Compatible with 2 types of dropouts and 3-10mm hubs, the Box Disc Brake Adapter goes over your hub’s axle and mates with the frame’s...

The Box One Disc Brake Adapter is designed to improve braking control on frames where disc brakes were not standard. Compatible with 2 types of dropouts and 3-10mm hubs, the Box Disc Brake Adapter goes over your hub’s axle and mates with the frame’s...

There is more to Box carbon headsets than their striking good looks. From top to bottom, the Box One™ Carbon Tapered Headset was designed to perform.Each unit features a custom CNC-machined aluminum compression cap in the shape of the Box logo with cut-outs to...

There is more to our carbon headsets than their striking good looks. From top to bottom, Box One™ Carbon Headsets was designed to perform. Each unit features a custom CNC-machined aluminum compression cap in the shape of the Box logo with cut-outs to reduce...

Ultra-lightweight Box One™ Carbon BMX Handlebars are made using advanced carbon fiber technology. Designed for maximum performance. Made for standard 22.2 bar bore stems. FEATURES • Carbon Fiber - For Extreme Weight Reduction• Carbon Fiber - More Aggressive Steering Response vs. Titanium SPECIFICATIONS Material:...

The Box One 1/8" to 1/5" Headset Crown Race converts 1.5" headsets to 1-1/8" fork race. With a split ring design, this headset crown race offers a hard anodize black finish for durability. 1.5" Lower Bearing to 1-1/8" Fork RaceSplit Ring Design7075-T6 AluminumHard Anodize Black...

The Box One Lockring is extruded and CNC-machined from 6061-T6 aluminum and designed to be super lightweight. Replace that old steel lock ring you have now and save some weight while adding style and colour to your whip. Available in anodized red, blue, gold,...

The Box One Cassette Spacer Kit is extruded and CNC-machined from 6061-T6 aluminum and features a super lightweight minimalist design. Packaged in 4 piece kits which provide 1 to 10 millimeters of spacing adjustment to dial in that chain line.  

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 include wheel position guides and two 10mm mounting holes with 15mm of adjustment...

Box One™ 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.

Cold-forged and CNC machined from 6061-T6 aluminum alloy, Box One Fixed Seat Clamps are tough, lightweight, and exceptionally good looking. Featuring titanium hardware and laser-etched graphics, Box One Fixed Seat Clamps are available in anodized black, blue, red, and silver.  

Box One™ fork adapters let you run standard "Male" 10mm (3/8" axles) in a fork designed for 20mm axles. Material 6061-T6 Aluminum

Box One Genius brake levers are the first ever to incorporate a clamp for ODI® Lock-On® grips. This ensures that your grips stay put while eliminating the need for an extra clamp. At roughly 50 grams, these cold-forged and CNC-machined levers beat any other...

Extruded and CNC-machined from 6061-T6 aluminum, Box One Stem Spacers feature an ultra-minimalist design that is super lightweight. Weights range from 0.02 to 0.14 ounces (0.56 to 4 grams), depending on the size. Sold in packs of five, each set provides spacing adjustments from...

DESCRIPTION All Box handlebars are engineered and crafted using our Oversized Technology. Handlebars have a dual purpose as they contribute to both steering and pedaling stiffness. By strategically varying wall thicknesses and tube diameters we have moved material from 3 low stress areas to...

Box One Linear Brake Cable Kits are among the most advanced BMX brake cables on the market. The custom Concentric housing includes aramid fiber-wrapped aluminum/steel linear wires for the best combination of strength and low weight. The inner Nano Cable wires are treated with...

All Box One and Two cranksets are engineered and crafted using our Oversized Technology. we all know that there is no use pushing hard on your pedals if you can’t deliver most of that power to the rear wheel. During the creation of our...

All Box stems are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness and tube diameter in this sector...

The Box One 20mm Adjustable Axle offers unparalleled versatility, having one size fitting all 20mm through hubs from 103 to 130mm, allowing it to fit seamlessly into your BMX racing setup. With its adjustable feature, you can fine-tune the axle to fit your frame...

All Box stems are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness and tube diameter in this sector...

All Box stems are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars we have focused our attention on the stem-to-bar interface. Since the Oversized handlebars have an increased wall thickness and tube diameter in this sector...

  Like the Box One™ Chromoly handlebars, Flat Chromoly bars are super stiff and custom made from the highest quality 4130 chrome-molybdenum. They feature a proprietary 13-butted taper from 22.2 Ø at the grip area to 31.8 Ø across the clamp area. The incredible...

All Box handlebars are engineered and crafted using our Oversized Technology. Handlebars have a dual purpose as they contribute to both steering and pedaling stiffness. By strategically varying wall thicknesses and tube diameters we have moved material from 3 low stress areas to zones...

All Box One and Two cranksets are engineered and crafted using our Oversized Technology. we all know that there is no use pushing hard on your pedals if you can’t deliver most of that power to the rear wheel. During the creation of our...

Box One Quick Release Seat Clamps are cold-forged, and CNC machined from 6061-T6 aluminum alloy. A quick-release lever makes adjusting your seat height quick and easy. Weighing just 28 grams/1 ounces in the 31.8 sizes, it’s as lightweight as it is tough. The head...

All Box hub sets that with axle diameters of 15mm and up are engineered and crafted using our Oversized Technology. For steering stiffness we follow the load paths down the handlebars, through the stem, headset, and eventually to the fork-to-hub interface. To transfer as...