Box One Carbon Handlebar — 3.0"

Overview

The Box One Carbon handlebar is an ultra-lightweight bar constructed from advanced carbon fiber, designed for riders weighing 100 lbs or less. The 3.0" height and 21.5" width with 6° back sweep and 2° up sweep provide geometry optimized for smaller frames and younger riders. Carbon construction requires professional installation and post-impact inspection.

Critical Safety Requirements

• Maximum rider weight: 100 lbs — Carbon bars have lower impact tolerance than alloy; exceeding this weight limit increases fracture risk
• Professional installation required — Install only with a torque wrench and proper stem clamping technique
• Post-crash inspection mandatory — Carbon fiber damage may not be visible; inspect bars thoroughly after any hard impact, fall, or collision before riding again
• Maximum torque: 7Nm — Over-tightening the stem clamp will crack the bar; use a calibrated torque wrench

Key Features

• Advanced carbon fiber construction — Provides exceptional strength-to-weight ratio; responsive flex characteristics tuned for racing and technical riding
• Geometry optimized for smaller frames — 3.0" height and 21.5" width fit youth and smaller-framed riders; 6° back sweep and 2° up sweep angle the bars for natural wrist positioning
• Lightweight design — 166g weight reduces rotational inertia and overall bike weight

Technical Specifications

• Material: Carbon fiber
• Height: 3.0" (76.2mm)
• Width: 21.5"
• Back sweep: 6°
• Up sweep: 2°
• Clamp diameter: 22.2mm
• Weight: 166g (5.9oz)
• Maximum torque setting: 7Nm
• Maximum rider weight: 100 lbs

Compatibility & Ideal Use Cases

• Fits: BMX frames with 22.2mm stem clamps
• Best for: Riders under 100 lbs; youth BMX racers and young riders in street/park
• Installation: Professional bicycle mechanic installation required with torque wrench
• Not suitable for: Riders over 100 lbs; riders unable to access professional installation; beginners without post-crash inspection capability