Cane Creek Thudbuster ST Suspension seatpost in excellent condition. Seatpost size 31.6mm. Due to bike change seat post no longer fits my down tube. Set up with elastomer rating 7 - firm - and little use on touring bike (not off road).
Info taken from Cane Creek Cycling Components website which has good user instruction manual (PDF) on this product.
All the benefits of the original Thudbuster design in a smaller package. The Thudbuster ST uses a shorter parallel-linkage mechanism to yield the ideal suspension post for riders looking to 'take the edge off' bumps with less loss of weight penalty. (eg. XC & Road riders)
Shorter linkage design provides 1.3 inch of active friction-free travel
The single elastomer can be changedto fit your size and riding style