Switching frames doesn't have to mean buying a new seatpost. These shims sleeve a smaller-diameter post so it fits securely in a larger seat tube.

Highlights

  • Sleeves a smaller seatpost to fit a larger seat tube
  • Sizes covering 27.2mm posts up to 34.9mm tubes
  • Alloy construction where confirmed

Compatibility & fit

Match the shim to both your seatpost diameter and your frame's seat tube diameter — the two numbers in the size (e.g. 27.2-31.6) are post-to-tube, not interchangeable.

Sizes & options

Child SKUSize (post-to-tube)Confirmed length/material
SCV-PSSP-ST021427.2-28.697mm + 3mm lip = 100mm
SCV-PSSP-ST022027.2-29.2Not stated
SCV-PSSP-ST022627.2-29.8Not stated
SCV-PSSP-ST022827.2-30.097mm + 3mm lip = 100mm
SCV-PSSP-ST023227.2-30.4Not stated
SCV-PSSP-ST023727.2-30.9100mm long, 3mm lip, alloy
SCV-PSSP-ST024427.2-31.6Not stated
SCV-PSSP-ST025030.9-31.6Not stated
SCV-PSSP-ST025631.6-34.997mm + 3mm lip = 100mm, black
Cover here follows Problem Solvers' standard manufacturing-defect warranty for accessories and small parts, on top of your rights under Australian Consumer Law. For warranty support, return the product to Tune Cycles and we'll manage the claim with Problem Solvers' Australian distributor.
Sleeves a smaller-diameter seatpost for a larger seat tube, Nine size options from 27.2mm posts up to 34.9mm tubes, Around 100mm length with a 3mm lip on the sizes where confirmed
Post-to-tube sizes27.2-28.6 / 27.2-29.2 / 27.2-29.8 / 27.2-30.0 / 27.2-30.4 / 27.2-30.9 / 27.2-31.6 / 30.9-31.6 / 31.6-34.9 (mm)
Length (confirmed sizes)~100mm with a 3mm lip
SKU SCV-P-4854
Brand Problem Solvers
Shipping Weight 0.3000kg
Shipping Width 0.100m
Shipping Height 0.080m
Shipping Length 0.500m