Lyne Seatpost Shim 30.9 to 34.9mm
What Is It?
The Lyne Seatpost Shim is a precision-machined adapter that allows a 30.9mm seatpost or dropper post to be fitted into a bicycle frame with a 34.9mm seat tube. It provides a secure interface between the different diameters.
Key Features
- Converts 34.9mm frame to accept a 30.9mm seatpost
- 30.9mm internal diameter
- 34.9mm external diameter
- Precision-machined construction
- 6061-T6 aluminium alloy
- 120mm length
- Suitable for standard seatposts and compatible dropper posts
Specifications
-
Brand: Lyne
-
Type: Seatpost Shim / Adapter
-
Internal Diameter: 30.9mm
-
External Diameter: 34.9mm
-
Length: 120mm
-
Material: 6061-T6 Alloy
-
Weight: 48g
-
Application: Bicycle frames with 34.9mm seat tubes
Benefits
- Allows greater choice of compatible seatposts and droppers.
- Provides a precise fit between different seatpost and frame diameters.
- Aluminium construction offers durability with relatively low weight.
- Useful when fitting a 30.9mm post to a larger 34.9mm frame.
Best Suited For
- MTB bikes with 34.9mm seat tubes
- Riders fitting a 30.9mm seatpost
- Riders converting to a compatible 30.9mm dropper post
- Bicycle workshops and replacement applications
