Seatpost Shims, 3.7mm Shim, 27.2mm Seatpost to 30.9mm
The Seatpost Shim is what you need when your seatpost is a little too small-diameter to fit tightly into your frame. It’s made of light, durable aluminum and has a lip on the top so it won’t slide down inside the frame during installation.
Aluminium V-brake pipes.
The BBB TopPost is ideal for mountain bikes. It is made from super strong and lightweight 6061 T6 aluminium to bring riders to the top of the hill in comfort. The TopPost has a low profile, plus a dual bolt adjustable clamp which makes it simple to fine-tune the angle of the saddle. An ideal seat post for every cyclist with an eye for detail.
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 135mm through 170mm and employ a 5 bolt 110 BCD chainring pattern.
All JIS square taper standard cranks are compatible with all BSA European style square taper bottom brackets.
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 135mm through 170mm and employ a 5 bolt 110 BCD chainring pattern.
All JIS square taper standard cranks are compatible with all BSA European style square taper bottom brackets.
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 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance.
Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box.
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 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance.
Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box.
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 4-bolt 104 BCD spider features a flex-resistant ring for optimum performance.
Box Four Cranks feature steel pedal inserts that require pedal washers and external sealed bearing BSA bottom brackets, and both are provided in the box.
Weight Limit: 115kg (253 lbs) with limitations as per Category 2 of EN 16054:2012 Standard
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 of high load. This has greatly minimized twist and contributed to responsiveness. Concurrently we have increased pedaling stiffness by providing a backstop to the “lifting” phenomenon. There is no point pushing hard on your pedals if you can’t pull up on your handlebars and deliver that power. Power can easily be lost to handlebar deflection and the consequences can lead to poor power delivery and steering control. When combined with Box’s other Oversized components, you’ll experience heightened responsiveness and reduced latency.
Key differences: This particular model handlebar is tailored for medium-sized racers so we decided to use hardened aluminum alloy to reduce unnecessary mass.
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.
Carbon Fiber - For Extreme Weight Reduction
Material: Unidirectional Carbon Fiber
Process: Vacuum Mold
Finish: Gloss Black with Water Decals
Size:
• Bar Bore: 22.2mm
• Sweep:
• 3”: 6° back, 2° up
• Width:
• 3”: 21.5”
• Clamp Diameter: 22.2mm
• Grips: 22.2mm
Height & Weight:
• 3”: 166 g / 5.9 oz
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.
Carbon Fiber - For Extreme Weight Reduction
Material: Unidirectional Carbon Fiber
Process: Vacuum Mold
Finish: Gloss Black with Water Decals
Size:
• Bar Bore: 22.2mm
• Sweep:
• 4.5”: 6° back, 2° up
• Width:
• 4.5”: 23.6”
Compatibility:
• Clamp Diameter: 22.2mm
• Grips: 22.2mm
Height & Weight:
• 4.5”: 204 g / 7.2 oz
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.
Carbon Fiber - For Extreme Weight Reduction
Material: Unidirectional Carbon Fiber
Process: Vacuum Mold
Finish: Gloss Black with Water Decals
Size:
• Bar Bore: 22.2mm
• Sweep:
• 6”: 7° back, 2° up
• Width:
• 6”: 26”
Compatibility:
• Clamp Diameter: 22.2mm
• Grips: 22.2mm
Height & Weight:
• 6”: 288 g / 10.2 oz
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.
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 to ensure perfect adjustability.
Material: 7075-T6 Aluminum
Size/Compatibility:
• Axle: 10mm
Adjustability:
• Wheel Position: 45mm
• Block: Dual-Color
• Grid: Dual-Sided
Weight: 69g
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.