Post Moderne PM-102 NOS Classic 26.8 mm Seatpost

✓ Original part - produced in the 1990s
✓ New old stock! Still unused after all these years
✓ Worldwide shipping

Post Moderne PM-102 seatpost, hailing from Taiwan and in production during the 1990s (yet still new & unused after all this time!). Made from aluminium/steel and weighing in at 346 grams. A fine choice for keeping your classic bike authentic, but also great for any other compatible bike.

Please note: Once inserted into a frame this cannot be returned, so please make sure to double check the diameter is correct before installing.


Condition - New Old Stock*
Model ID - PM-102
Production Era - 1990s
Country - Taiwanese
Material - Aluminium / Steel
Weight - 346 g
Stock Code - D-SP188C

*New old stock items may have marks from storage over the years, and as we often have multiples they can vary from piece to piece, but they are always genuine new & unused items.


Seatpost Diameter - 26.8 mm
Length (Centre of Rails to Base) - 305 mm


We've been safely sending orders around the world since 2010. There's a handy shipping calculator on the shopping cart page so you can see the cost of postage as soon as you've added it to your basket. Your order will be carefully packed and sent with tracking & insurance, we despatch most orders within 2-3 days but larger items and orders placed before the weekend can take an extra day or two to process.

We accept returns, please notify us within 14 days and ensure the item arrives back with us no later than 30 days after the order was received.

We don't charge VAT, however, if buying from outside of the UK please remember that there may be import fees to pay directly to the delivery company before receiving the order. Unfortunately we can’t advise on the exact costs as it varies from country to country, so please check your national rates before purchasing.


Seatpost Diameter - this needs to match the internal diameter of your frame’s seat tube closely, it should be possible to insert the seatpost without force but the fit should be tight enough so it doesn’t just drop in, with no play once inserted. If you have a post that fits the measurement should be stamped somewhere near the bottom, if not you’ll need to measure with a caliper or seatpost sizing tool as the sizes go up in 0.2 mm increments.

Length (Centre of Rails to Base) - measured from where the centre of the saddle rails will sit once installed, all the way to the bottom of the seatpost. Normally there’s a mark to tell you how much of the seatpost needs to be inserted in the frame, however this isn’t always the case so we’d recommend allowing a minimum of 6 cm.