G1 Gyro System Size:Large Regular Diameter = 30

Regular Diameter = 30

We recommend using with a frame that uses a press-in headset top cup

Shimano or single speed setups with ease

800mm width

Short lever design optimized for gyro use

G1 Gyro System Size:Large Regular Diameter = 30G1 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