Old Man Mountain Seatpost Clamp - 27.2mm

£29.99 Please note this product has selling restrictions to your country. was
Manufacturer : 
SJS Cycles part number : 
Manufacturer part number : 
This 27.2mm seat post mount provides a secure upper attachment point for Old Man Mountain racks for certain bikes.

- 27.2mm in diameter.
- Includes stainless hardware.
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Can I use this with a 27.2 post?
16 Dec 2023
Hi there, can I use this on a 27.2 post to help stop it slipping down? It's shimmed into a 31.6 seat tube and has been slipping. (It would also be useful to add rack mounts, obviously)
It will provide some support but not much, I would also look at the current components and get them measured to check for worn or undersized parts, assembly with fibergrip paste is also recommended to help reduce slipping. SK 19/12/23