Box Components

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™ 120 TPI Folding Tires were engineered with a minimalist approach to hit lofty goals for weight, traction, rolling resistance, and rebound. At its heart is a super-supple 120TPI casing where we forced in as much rubber displacing nylon as possible. Skin walls...

  Designed by the infamous Rich Lee, the Box Two plates are injected in an impact-resistant and colorfast resin. The airflow ports are artfully sculpted to both reduce weight and drag. Each plate includes hook-and-loop closures secured in place with custom Box rivets. Did...

Designed by the infamous Rich Lee, the Box Two plates are injected in an impact-resistant and colorfast resin. The airflow ports are artfully sculpted to both reduce weight and drag. Each plate includes hook-and-loop closures secured in place with custom Box rivets. Did you...

Box One Saddles are the first of their kind, featuring a proprietary co-molded nylon shell and carbon fiber Seatpost. Super lightweight and designed specifically for BMX racing, they feature the Box logo molded into the top and have reduced profiles to prevent snagging on...

Initially designed for the European market’s UCI races, these are also a requirement for USABMX Nationals. The Box Two Side Number Plates are shaped from embossed foam and feature full-color printed graphics. They comply with UCI regulations and fit all bicycle frames. Hook-and-loop straps...

All Box headsets are engineered and crafted using our Oversized Technology. As we follow the load paths down the handlebars, through the stem-to-bar interface, we arrive at the headset focal point. Since any steering stiffness can easily be lost to headset play, we have...

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 46 teeth.

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...

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...

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...

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...

The Box Three Disc Brake Rotor is a Stainless Steel, 6 bolt rotor designed for BMX Race. Utilizing a small size and rounded outside edges for safety is the optimal size for any BMX Race bike.   ISO 6 bolt brake/hub interfaceRounded outside edgesLightweight...

Box Two™ Quick Release Seat Clamps are cold-forged, and CNC machined from 6061-T6 aluminum alloy. Weighing in at just 27 grams/ 0.95 ounces in the 31.8 size, they are as lightweight as tough. The head of the quick-release lever and the face of the...

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...

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...

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...

The Box Two Front Top is a modern 1 1/8 inch by 22.2mm stem designed specifically for BMX racing. Box Two Top Load stem bodies are cold-forged and CNC-machined from the highest quality 6061-T6 aluminum. The lightweight front clamps are cold-forged and CNC-machined for...

A nylon adhesive-backed rim tape that gets stuck to the rim to protect your tube from the spoke holes. Each roll of tape is long enough to fit up to a 24-inch rim and is easily trimmed to fit a 20inch.

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.

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...

Box Two™ Integrated headsets feature an aluminum top cap, CNC-machined bearing cover, and split crown race with super-smooth rolling, precision 45x45 bearings Important notes: This headset was designed to allow 1-inch forks with frames that have 1-1/8-inch integrated head tubes. Compatibility: Box One XS...

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...

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...

Box One Single-Speed Chromoly Cogs are CNC-machined from long-wearing CNC-machined from chrome-molybdenum. It's designed to fit Shimano™ compatible cassette hubs and has a 5mm wide inner base, giving a more solid interface with the cassette body.  

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 Two Front Top is a modern 1 inch by 22.2mm stem designed specifically for BMX racing. Box Two Top Load stem bodies are cold-forged and CNC-machined from the highest quality 6061-T6 aluminum. The lightweight front clamps are cold-forged and CNC-machined for increased...