Ultracycle BMX Seat Post Sizer Shim

The Ultracycle Seat Post Sizer Shim makes it easy to run a 27.2mm seatpost in frames designed for a larger seat tube diameter. Its aluminum construction adds minimal weight while providing a secure fit between the post and frame. Simple, effective, and easy to install, it's a convenient solution for expanding seatpost compatibility.

SPECIFICATIONS

• Material: Aluminum
• Inner Diameter: 27.2mm
• Outer Diameter: 31.6mm
• Color: Silver