Box One Oversized 20mm Rear Lockring

Enhance your ride with the Box One Oversized 20mm Rear Lockring, a lightweight and durable upgrade to traditional steel lockrings. Designed for BMX racers who seek precision and performance, this lockring delivers weight savings without sacrificing strength, making it the perfect addition to your rear hub setup. Crafted from high-quality 6061-T6 aluminum and CNC-machined for a perfect fit, it features a sleek anodized finish with laser-etched graphics for a clean, professional look. The multi-tool compatible design works with Park Tool BBT-9 and other 44mm, 16-notch bottom bracket tools, ensuring quick and easy installation. With an 1.72 x 24 TPI thread pitch, 55.5mm outer diameter, and weighing just 8g (0.28oz), the Box One Oversized 20mm Rear Lockring is a must-have lightweight upgrade for your BMX setup. View Whitepaper: Box® - Stealth Hubs Whitepaper 06.12.25