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 SteelProcess: Cold-Forged & CNCFinish: ED Black & Nickel Plating w/Laser-Etched GraphicsSize:• 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 TPICompatibility: • Chain: 1/8" or 3/32"• Tool: Park Tools™ FR-6 or installation tool with four notches 32mm ID, 40mm OD
