Head tube outside diameter must be 54mm or less. Using a Vernier Caliper is the recommended way to make this measurement.
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.
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 & Specifications
MTB specific gyro
Made in Canada from domestic 6061 T6 machined aluminum
Low friction / high wear resistance machined delrin bushing
Two sizes available (dependent on outside diameter of head tube)
Intended Use: Dirt Jump / Slopestyle / Skatepark / Street
Recommendations:
The brand recommends 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
Recommended use of G1 cables and G1 lever for best set up
