These useful extra Long (100mm) precision CNC machined alloy shims allow the use of a smaller diameter seat post inside a larger diameter seat tube on a frame.

The XL length of 100mm provides additional support to the seat post and frame compared to a short shim.  


Identiti XL Seatpost Shim

Click image to enlarge


MaterialCNC Alloy
Size31.6-30.9, 30.9-27.2 or 30.4-27.2

Part numbers

Part No Colour Size RRP
SPIDS309K Black 30.9mm £8.99
SPIDS609K Black 30.9mm £8.99
SPITS304 Black 30.4mm £8.99
SPITS309 Black 30.9mm £8.99