Promax Carbon Road Seatpost 31.6mm 300mm - Best UK Price. This listing is for a brand new and un-used PROMAX seat post. Make me an offer to price match - I will beat any comparable offer!!Made from 3K Carbon and t. Alloy clamp section in Silver. Saddle angle adjustable with 1 bolt road style clamp. Scale marked shaft for easy height adjustment. The item "Promax Carbon Road Seatpost 31.6mm 300mm Best UK Price" is in sale since Saturday, April 17, 2021. This item is in the category "Sporting Goods\Cycling\Bike Components & Parts\Seatposts". The seller is "bpm_active" and is located in Edinburgh. This item can be shipped worldwide.