S&M Long Johnson Stealth Pivotal Seat Post 27.2mm steering The adjustable pin system allows

The adjustable pin system allows customization from minimal grip for foot movement to maximum traction for aggressive riding

Spindle size: 9/16"

and the Stealth Pivotal mounting system routes hardware access from below the seat for a clean

4mm seat tube should select the 25

S&M Long Johnson Stealth Pivotal Seat Post 27.2mm steering The adjustable pin system allowsS&M Long Johnson Stealth Pivotal Seat Post 27. 2mm The S&M Long Johnson 27. 2mm is a redesigned, improved version of the Stealth Pivotal post with an updated base, sized for race frames and any other frame requiring a 27. 2mm seat tube diameter. The 320mm length covers the full range from slammed low to comfortable seated riding height, and the Stealth Pivotal mounting system routes hardware access from below the seat for a clean, unobstructed seat