G1 SIZING AND COMPATIBILITY

*Lever, cables, and calliper not included.*

SIZE SMALL:

• Head tube outside diameter must be 54mm or less.
• We recommended use with frames that use 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. Using a Vernier Caliper is the best way to measure.
• Steer tube must have 20mm of extra length

SIZE LARGE 

• Head tube outside diameter must be 54mm or greater.
• We recommended use with frames that use 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. Using a Vernier Caliper is the best way to measure.
• Steer tube must have 20mm of extra length

FEATURES

• 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)
• 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

COMPATIBILITY

The large G1 fits on:

• Trek Ticket
• Devinci Sabbath
• Scott Voltage

The small G1 fits on all other frames if they feature a 44mm zerostack headset cup on top, and steel and aluminum frames including, but not limited to: 

• Black Market
• Banshee
• Cannondale 
• Chromag
• Commencal
• Dartmoor
• Giant
• GT La Bomba
• Kona
• Morpheus
• Mongoose
• Marin
• Rose
• Santa Cruz
• Specialized 
• Transition
• Polygon

Note: If you do not see your frame please watch our install video for how to measure your head tube.