Système Gyroscopique G1 DMR so you can run lower

so you can run lower pressures for improved traction and comfort

valve core tool

Ideal for blocking wind on the road or trails

which will be the P23 adapter

Système Gyroscopique G1 DMR so you can run lowerG1 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