BOX THREE BMX SPECIFIC 140MM ROTOR SILVER

Product Overview

The Box Three 140mm disc brake rotor is a BMX-specific rotor designed for efficient heat dissipation and consistent braking performance. Featuring a ventilated design that cools quickly under repeated braking, this rotor uses the ISO 6-bolt mounting standard for secure attachment to compatible hubs. Built for the demands of BMX racing where repeated hard braking from high speeds generates significant heat.

Key Features

• Optimized heat dissipation design – Rotor construction and ventilation pattern promote rapid heat transfer away from braking surface to maintain consistent stopping power
• Efficient ventilation system – Strategically placed vents or cutouts allow airflow across rotor surface to prevent brake fade during intense or repeated braking
• BMX-specific construction – Designed to handle the high braking forces and heat generation common in BMX racing, particularly on tracks with steep hills or technical sections requiring frequent braking
• 140mm diameter – Standard BMX race rotor size balances braking power with weight savings compared to larger MTB rotors
• ISO 6-bolt mounting – Uses industry-standard 6-bolt pattern for compatibility with most BMX race hubs and ensures secure, even clamping force

Technical Specifications

• Rotor diameter: 140mm
• Mounting standard: ISO 6-bolt
• Color/finish: Silver
• Recommended use: BMX racing, freestyle (disc brake-equipped bikes)
• Compatibility: ISO 6-bolt disc brake hubs
• Brake pad compatibility: Works with both resin and metallic brake pads (pad choice affects performance and rotor wear)

Compatibility and Ideal Use Cases

This rotor fits any hub with ISO 6-bolt disc brake mounting—the standard for most BMX race bikes and many modern freestyle setups. Verify your hub uses 6-bolt mounting (not Centerlock) before ordering. The 140mm size is designed for BMX racing where lightweight components and adequate stopping power are balanced; larger rotors (160mm+) provide more power but add weight. Ideal for BMX race tracks, particularly courses with steep descents or sections requiring repeated hard braking where heat management is critical. Also suitable for disc brake-equipped dirt jump or park bikes. Requires compatible disc brake calipers (post mount or flat mount with adapter) and brake pads. Note that mixing rotor and pad materials (e.g., metallic pads on this rotor) affects performance and longevity—consult brake manufacturer recommendations for optimal pad selection.