G1 SIZING AND COMPATIBILITY *Lever, cables, and calliper not included.* SIZE SMALL: Head tube outside diameter must be 54mm or less. Using a Vernier Caliper is the recommended way to make this measurement. We recommend using with a frame that uses a press-in headset top cup. This will prevent any compatibility issues from using the G1 with different gyro tabs. If your frame does not use a press in top cup, you can use gyro tabs that line up with the bottom of the small G1 (69mm) however, gyro tabs are not included and may need to be customized to align with the width of the bottom of the gyro. Steer tube must have 20mm of extra length SIZE LARGE Head tube outside diameter must be 54mm or greater. Using a Vernier Caliper is the recommended way to make this measurement. We recommend using with a frame that uses a press-in headset top cup. This will prevent any compatibility issues from using the G1 with different gyro tabs. If your frame does not use a press in top cup, you can use gyro tabs that line up with the bottom of the large G1 (74mm) however, gyro tabs are not included and may need to be customized to align with the width of the bottom of the gyro. Steer tube must have 20mm of extra length FEATURES MTB specific gyro 6061 T6 machined aluminum Low friction / high wear resistance machined delrin bushing Two sizes available (dependent on outside diameter of head tube) Available as a full system or gyro only INTENDED USE Dirt Jump / Slopestyle Skatepark / Street RECOMMENDATIONS To ensure proper installation, watch our G1 gyro set up video Recommended use of G1 cables and G1 lever for best set up Keep bushing lightly lubricated Have installed by a professional
