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Box One Top Load Race Stem
Box One Top Load Race
Stem
£62.99
Cold-Forged & CNC machined from 6061-T6 Aluminum Alloy, Front-Load clamp design with 48, 53 & 60mm extensions available. Fits 1 1/8” steerer tubes & 31.8mm handlebars. Designed in USA/made in Taiwan section Product Specs TYPE: Top Load REACH: 48-60mm RISE: 28mm CLAMPING DIAMETER: 31.8mm WEIGHT: 263 grams / 9.3 ounces
- 280 grams / 9.9 ounces
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Available
Box One Top Load Race Stem
Box One Top Load Race
Stem
£62.99
Cold-Forged & CNC machined from 6061-T6 Aluminum Alloy, Front-Load clamp design with 48, 53 & 60mm extensions available. Fits 1 1/8” steerer tubes & 31.8mm handlebars. Designed in USA/made in Taiwan section Product Specs TYPE: Top Load REACH: 48-60mm RISE: 28mm CLAMPING DIAMETER: 31.8mm WEIGHT: 263 grams / 9.3 ounces
- 280 grams / 9.9 ounces
...
Available
Box One Top Load Race Stem
Box One Top Load Race
Stem
£62.99
Cold-Forged & CNC machined from 6061-T6 Aluminum Alloy, Front-Load clamp design with 48, 53 & 60mm extensions available. Fits 1 1/8” steerer tubes & 31.8mm handlebars. Designed in USA/made in Taiwan section Product Specs TYPE: Top Load REACH: 48-60mm RISE: 28mm CLAMPING DIAMETER: 31.8mm WEIGHT: 263 grams / 9.3 ounces
- 280 grams / 9.9 ounces
...
Available
Box One Top Load Race Stem Black / 60mm
Box One Top Load Race
Stem Black / 60mm
£69.99
Box's One Oversized Top Load Stem boasts a unique look compared to other stems thanks to their constant drive to improve. CNC machined from 6061-T6 aluminium alloy & Cold-forged for maximum strength. Their stems are oversized for a reason, they've focused specifically on the stem-to-bar interface improving & enlarging the surface area of the stem by moving material from low stress areas. Front-Load clamp design with 48, 53 & 60mm extensions available. Fits 1 1/8" steerer tubes & 31.8mm handlebars. section Product Specs TYPE:  Top Load REACH: 48
- 60mm RISE: 28mm CLAMPING DIAMETER: 31.8mm WEIGHT: TBC
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Available
Box One X 24" Race Fork
Box One X 24" Race
Fork
£296.99
Made from High Modulus Unidirectional Carbon Fiber with a 1-1/8" chromoly steerer tube, the Box One X Fork has the optimal balance of weight, strength & stiffness. The Box One X Fork features a chromoly steerer tube & a 10mm cold-forged bonded dropouts.

Includes:: a Box One stem lock. Please note use of a star nut voids the warranty for this product. section Product Specs Steerer Length: TBC Wheel

Size: 24"

Material: High Modulus Unidirectional Carbon Fiber With Chromoly Steerer Tube. Dropout

Size: 10mm Offset: 32mm Weight: 810g/28.5oz







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Available
Box One X2 24" Pro Carbon Race Fork Black
Box One X2 24" Pro
Carbon Race Fork Black
£349.99
The Box X2 Carbon Race Fork incorporates a lot of rider-specific details to create strong, lightweight & reliable forks that meet the demands of elite & pro racers. That carbon crown & leg construction is what makes these froks so lightweight & strong, with cold-forged & CNC machined aluminium dropouts with an exclusive reverse steering lock system & bushings allowing the forks to run a 10mm axle. section Product Specs Steerer Length: 180mm Steerer Diameter: 1 1/8" Wheel
Size: 20"
Material:  Carbon with aluminium drop out Dropout
Size: 20mm Offset: 32mm Weight: 1.44lbs (653g)


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Available
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Box One X2 Race Fork
£329.99
The X2 is built in one of the world’s leading carbon fibre frame & fork factories using the latest manufacturing techniques & materials. It features an all-carbon crown & leg construction paired with precision cold-forged & CNC-machined dropouts. All Box X Series forks are for BMX racing only & not meant for freestyle riding. Inspect it for damage after crashing or impacting the ground or other objects. section Product Specs Steerer Length: TBC Wheel

Size: 20-24"

Material: Full Carbon crown & legs, aluminum drop out & chromoly steer tube Dropout

Size: 20mm Offset: 32mm +/-1.5mm Weight: 23.9oz/677g





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Available
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Box One X2 Race Fork
£329.99
The X2 is built in one of the world’s leading carbon fibre frame & fork factories using the latest manufacturing techniques & materials. It features an all-carbon crown & leg construction paired with precision cold-forged & CNC-machined dropouts. All Box X Series forks are for BMX racing only & not meant for freestyle riding. Inspect it for damage after crashing or impacting the ground or other objects. section Product Specs Steerer Length: TBC Wheel

Size: 20-24"

Material: Full Carbon crown & legs, aluminum drop out & chromoly steer tube Dropout

Size: 20mm Offset: 32mm +/-1.5mm Weight: 23.9oz/677g





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Available
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Box One X2 Race Fork
£296.99
The X2 is built in one of the world’s leading carbon fibre frame & fork factories using the latest manufacturing techniques & materials. It features an all-carbon crown & leg construction paired with precision cold-forged & CNC-machined dropouts. All Box X Series forks are for BMX racing only & not meant for freestyle riding. Inspect it for damage after crashing or impacting the ground or other objects. section Product Specs Steerer Length: TBC Wheel

Size: 20-24"

Material: Full Carbon crown & legs, aluminum drop out & chromoly steer tube Dropout

Size: 20mm Offset: 32mm +/-1.5mm Weight: 23.9oz/677g





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Available
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Box One X2 Race Fork
£296.99
The X2 is built in one of the world’s leading carbon fibre frame & fork factories using the latest manufacturing techniques & materials. It features an all-carbon crown & leg construction paired with precision cold-forged & CNC-machined dropouts. All Box X Series forks are for BMX racing only & not meant for freestyle riding. Inspect it for damage after crashing or impacting the ground or other objects. section Product Specs Steerer Length: TBC Wheel

Size: 20-24"

Material: Full Carbon crown & legs, aluminum drop out & chromoly steer tube Dropout

Size: 20mm Offset: 32mm +/-1.5mm Weight: 23.9oz/677g





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Available

Box One X2 20" Pro Carbon Race Fork

Box forks incorporate rider-specific designs that are strong, lightweight and reliable, to meet the demands of elite and professional racers. The X Series forks feature an all carbon crown and leg construction paired with cold-forged and CNC machined dropouts. section Product Specs Steerer Length: TBC Wheel Size: 20" Material: Carbon Fibre Dropout Size: 20mm Offset: 32mm Weight: 579 grams / 20.4 ounces C3:F3
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    • Availability: In Stock
    • Supplier: Sourcebmx
    • SKU: 31262283989103
    Availability: In Stock
    £323.99
    Description Reviews / Comments Add New

    Product Description

    Box forks incorporate rider-specific designs that are strong, lightweight & reliable, to meet the demands of elite & professional racers. The X Series forks feature an all carbon crown & leg construction paired with cold-forged & CNC machined dropouts. section Product Specs Steerer Length: TBC Wheel

    Size:     20"

    Material:     Carbon Fibre Dropout

    Size:     20mm Offset: 32mm Weight: 579 grams / 20.4 ounces C3:F3

    Reviews/Comments

    Add New

    Intelligent Comparison

    Available
    Box One X2 24" Pro Carbon Race Fork Black
    Box One X2 24" Pro Carbon Race Fork Black Sourcebmx
    £349.99
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    Box One X5 Tapered Pro Carbon Race Fork 20" Sourcebmx
    £379.99
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    Box One X5 Tapered Pro Carbon Race Fork Sourcebmx
    £296.99
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    Box One XS Mini Carbon Race Fork White
    Box One XS Mini Carbon Race Fork White Sourcebmx
    £309.99
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    Box One XS Mini Carbon Race Fork
    Box One XS Mini Carbon Race Fork Sourcebmx
    £278.99
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    Box One X 24" Race Fork
    Box One X 24" Race Fork Sourcebmx
    £296.99
    Available
    image missing
    Box One XL Pro Lite Carbon Race Sourcebmx
    £278.99
    Available
    image missing
    Box One X2 Race Fork Sourcebmx
    £296.99

    Price History

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    Jargon Buster

    Carbon - A common element, in its simplest form is coal. The element can take different form from hard diamonds through graphite to soft carbon
    strong - A descriptive word for an item that has physical strength
    Leg - A body part attached to the buttock
    weight - A measure of the force applied on an object by gravity. Measured metric in grams and kilos or imperial in lbs and oz
    professional - A term used to describe products or people which may be focused on specialist educational training
    Size - is the measurement of how big an object is in space.
    Professional - A person that is trained within a profession.
    Reliable - Something that is consistently good and can be trusted.
    Feature - An attribute that makes something stand out.

    Supplier Information

    Sourcebmx
    Ride in style with Source BMX (https://www.sourcebmx.com/). Explore a vast selection of BMX bikes, parts, accessories, and apparel for riders of all levels. With top brands and expert advice, Source BMX ensures you have everything you need for your next session. Elevate your BMX experience and unleash your passion for riding with Source BMX.
    Page Updated: 2026-01-29 13:55:46

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