Box One Pignon

Optimize your power transfer with the oversized single-speed sprocket Box One, designed for high-level performance and durability. CNC machined from high-strength chromoly steel, this sprocket features an elegant black ED finish with laser-etched graphics for a premium and durable look. Specially designed for OS spline drivers, including the Onyx Ultra SS driver, it is compatible with 3/32" and 1/8" chains, providing you with optimal flexibility for your race setups. Available in sizes from 14 to 18 teeth, this sprocket delivers smooth and consistent engagement and efficient power transfer. Weighing only 20 g (14 teeth), the oversized single-speed sprocket Box One is the perfect solution for BMX riders who demand precision, strength, and performance. Chromoly steel for extra-long lifespan Wide 5 mm inner base for a stronger interface with the freehub Oversized splines Material: Chromoly steel Process: CNC machining Finish: Black ED with laser-etched graphics Size: 14, 15, 16, 17, 18