Note: Ships in 3-4 business days. Delivery time depends on the shipping method chosen at checkout. Tested extensively by the Dutch National BMX Team, Damien Godet, Kory Cook, and numerous other elite racers, Box Two™ Freewheels combine durability with lightning-fast engagement. They feature nine, super durable pawls and are available in one of three choices -- 16, 17 or 18 teeth. To install, use the Park Tools™ FR-6 or other installation tool designed for single speed freewheels with four notches that are approximately 32mm across measured inside to inside and 40mm outside to outside. Features: 9 Pawls 108 [3.3°] Points of Fast Engagement Specifications: Material: Chromoly Steel Process: Cold-Forged & CNC Finish: ED Black & Nickel Plating w/Laser-Etched Graphics Size: Diameter/Weight: 16T / 163 g / 5.75 oz; 17T / 170 g / 5.99 oz; 18T / 176 g / 6.21 oz; Hub Thread: 1.375 x 24 TPI Compatibility: Chain: 1/8" or 3/32"; Tool: Park Tools™ FR-6 or installation tool with four notches 32mm ID, 40mm OD
