System Ex Aluminium Seatpost
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System Ex Aluminium Seatpost
Code: XSP431
System Ex Aluminium Seatpost


  • Length: 400mm
  • Single adjuster bolt 
  • Lightweight 6061-T6 alloy
  • Glossy Black Finish
JonLooks great and works perfectly, easy to install and gives me a few extra mm in length on my mtb
Mr MillerA high quality seatpost at a usefully low price. The clamp isn't infinitely adjustable: there are lots of fine graduations ,but most importantly i locks solidly in place when the bolt's tightened.
JamesGood seatpost for the money
ThomFantastic value for a well made slick seatpost. The seatpost held well on rough terrain. Would definitely recommend if you trying to get a small bike running again with little cost.
Dr De MeloExcellent value seat post
CrankySimonGetting on for 400g this isn’t the lightest post but is the best value and seems good quality to boot.
Mr richardsonMy daughter had outgrown her bike. This longer post, and the lay back saddle mount have made it usable again. It's very good quality too.
Mr BeattieGood quality and light
Mr McManusReasonably light seatpost for the price, works fine and seems good quality so far.
Mr ZorotheosGreat seat post for the price, easily adjust the angle, well finished quality product.
PeterGreat value and good quality; required to raise the saddle height on my grandson's mtb - don't they grow quickly! - does the job perfectly at a very reasonable price.
DenesBasic seatpost, sturdy and suits a budget project.
Mr GoddardThe seatpost is just what I wanted at a good price and with quick delivery.
ChrisGood quality seatpost. Easy to adjust the seat angle once fitted. Great price from Merlin.
glynNice quality seatpost, came well packaged and arrived in good time.
Mr FriendLovely budget seatpost. Plenty of metal for your money. Looks great on the winter bike. Recommended.
Mr FLOCKHARTWell finished product providing a great range of adjustment for saddle and height to achieve a comfortable position on the bike.