SEATPOSTS: 25.2–25.8mm

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25.0mm, Other sizes and full aero

Please contact me at: to check on availability and confirm shipping cost.

I try and keep in stock all sizes between 25.0mm and 27.4mm in 0.2mm increments plus a few of the larger oversize seatposts.

The important length dimension is rails to limit marks – different manufacturers have different ideas on how much needs to be inserted into a frame. If the length is specially critical please ask me to double check as the measurements given are approx – normally should be within ± 5mm. If there is no limit mark I have assumed to leave 60mm in the frame.

Please check the seatpost size you need carefully – its very common for frames to have been fitted with seatposts smaller than they should have. This results in the seat lug ears being squashed and the seat tube is then put under extra stress often resulting in cracks starting from the base of the slit. Seatposts should be a tight sliding fit.

I cannot accept returns where new seatposts have been fitted and marked.

PLEASE LOOK at the large version of the pictures – that will give you the best idea of condition.

25.8–25.2mm Seatposts


SP76 NO-NAME SEMI-AERO SEATPOST 25.8mm 150mm rails to limit Excellent virtually unused £24


SP77 KALLOY 210mm rails to limit Excellent £18


SP79 BMX Cro-Mo 25.4mm, 200mm rails to limit ** New Old Stock** £15


SP79A NO-NAME FLUTED NO-NAME 155mm rails to limit mark ** New Old Stock** £25

Shipping costs:

UK: £4
Europe: £8
North America: £10
Worldwide: £14

The figures above are
estimates,rates may change in
special circimstances.
Contact us for more info.

Larger versions of the
pictures can be accessed
by clicking on page image
property of hilary stone