The Box One 120 TPI Folding Tire is a premium, race-specific BMX tire designed to deliver minimal weight, maximum rolling efficiency, and aggressive cornering grip right out of the starting gate. Featuring a highly supple, high-density 120 TPI (Threads Per Inch) casing, this tire displaces excess nylon with high-silica rubber compounds, creating a featherlight profile that significantly lowers rotational weight.

Technical Specifications & Features

• Casing & Suppleness:
  120 TPI high-density race casing designed for high rebound and compliance.
• Bead Construction:
  Flexible Aramid folding bead to shed unnecessary grams.
• Sidewall Styling:
  Skinwall construction engineered specifically to reduce mechanical drag and rotational mass.
• Tread Mechanics:
  Built with a flat center strip utilizing low-resistance chevron lines for top straight-line speed, bordered by deep, ramped directional micro-knobs for immediate cornering traction.
• Compound Makeup:
  Advanced high-silica mixture utilized across critical structural areas of the tire apex and bead seat to ensure elite grip without sacrificing wear life.

Verified Size & Weight Guide

The folding casing variant is significantly lighter than wire-bead equivalents, available in the following 20-inch (406mm ISO) or fractional configurations:

• 20" x 1-3/8" (451mm fractional): 234 grams
• 20" x 1.50" (406mm): 273 grams
• 20" x 1.75" (406mm): 378 grams
• 20" x 1.90" (406mm): 371 grams

This tire is an excellent choice for BMX racers seeking a high-performance, lightweight option that combines speed, grip, and durability.