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Box Hex Lab Carbon Rim

Box Hex Lab Carbon Rim

Regular price $395.99 USD
Regular price Sale price $395.99 USD
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Shipping calculated at checkout.

All Hex Lab rims are engineered & crafted using our Oversized Technology. We’ve carefully studied the load paths from the bars through the stem, headset, fork, axle, hub to the spokes & into the rim for steering stiffness. The same approach was taken via the pedals through the cranks & other components on the way to the rear rim for pedaling stiffness. That extra stiffness will net you more power to the ground out back, and upfront, you'll feel in control. When combined w/ Box's other Oversized components, you'll experience heightened responsiveness & reduced latency. Due to their compatibility w/ tubeless & tubed configurations, these rims have a broad range of tire options & setup possibilities, making them perfect for any track.

Key Differences: The Hex Lab Carbon BMX Rims are the only rims in the Box line-up to be blessed w/ Oversized Technology. They are also the only model to use Ultra High Modulus Carbon Fiber (stiffer than other carbons variants). Take notice of the unique Symmetrical Dihedral Angle Stabilizers. Yes, it’s a mouthful but each of those words carries meaning. The sculpted bullet-shaped spoke beds are designed to bridge the angle between the rim's angled flanks & the vertical plane. With that, we achieve the stability, stiffness, & durability of a much broader rim profile without actually taking on most of the extra material.


  • Foil Stamped Chrome Logos
  • Brake (Rear) & Brake-Less (Front) Profiles
  • Machined Brake Track
  • Tubeless-Compatible
  • High-Response & Low Latency
  • Symmetrical Dihedral Angle Stabilizers
  • Ultra High Modulus Carbon Fiber

PLEASE NOTE: Hex Lab Carbon BMX Rims w/ brake tracks require Carbon Brake Pad Inserts & CANNOT be used w/ standard Brake Pads made for aluminum Rims. Box Carbon BMX hoops are compatible w/ Box One Carbon Replacement Pads. Use of other brake pads will void warranty.

Hole Drilling: 36 Hole
Internal Rim Width: 30mm
ERD: 369mm
Material: Ultra High Modulus Carbon Fiber
Weight: 315 grams (front or rear)

(Please note: weight may vary by 10% due to carbon manufacturing processes.)


Q: What is the recommended spoke tension for this rim?
A: We recommend a spoke tension of between 110kg and 115kg; remember, every rim is different.

Q: What lacing pattern is best for this rim?
A: This is a question dependent on many variables; Please check out some of our build information available at box

Q. What spoke length do I need to build this rim?
A: This is a question dependent on many variables; Please check out some of our build information available at

Q. Which direction is the drive side?
A: Locate the drive side sticker on the rims.


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