THM Carbon Seatpost Shim
| Article number: | 014-05-03 |
| Availability: | Out of stock |
THM Carbon Seatpost Shim provides a lightweight, precision fit solution for adapting smaller diameter seatposts to larger frame seat tubes. Designed for compatibility with the THM Mandibula seatpost and other 27.2 mm posts, this shim allows clean integration into 31.6 mm frames without compromising weight or structural integrity.
Constructed from 3K carbon fiber, the shim maintains consistent clamping performance while minimizing additional weight in the system. Its compact 100 mm length offers sufficient support within the seat tube while keeping overall mass exceptionally low.
Features
27.2 To 31.6 Conversion
Adapts 27.2 mm seatposts to fit 31.6 mm seat tube frames.
Carbon Fiber Construction
3K carbon build keeps weight low while maintaining consistent clamping support.
Lightweight Design
Approximately 31 g for minimal impact on overall bike weight.
Optimized Length
100 mm length provides stable insertion and even load distribution inside the seat tube.
Broad Compatibility
Designed around THM Mandibula but suitable for other 27.2 mm seatposts.
Product Details
Best For
This shim is ideal for riders upgrading to a 27.2 mm carbon seatpost—such as the THM Mandibula—while using a frame designed around a 31.6 mm seat tube. It’s especially relevant for lightweight road builds where reducing system weight and maintaining clean carbon interfaces is a priority.
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