Specialized Spacer Adapter 34.9mm External - 30.9mm Internal for Seatpost

The Specialized adapter allows mounting a 30.9 mm seatpost on frames with a 34.9 mm seat tube, ensuring compatibility and perfect fit on both carbon and aluminum frames. Ideal for those who want to upgrade or replace their seatpost while maintaining maximum stability and safety.

Technical features:

• External diameter: 34.9 mm

• Internal diameter: 30.9 mm

• Length: 102.5 mm

• Compatible with carbon and aluminum frames

Practical and reliable solution to adapt a seatpost of a different size without compromising your bike's performance.