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Vintage road bike seatpost diameter.
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There were different standards for different steel tubes.
It is very important that the bike fits your body in order to optimize comfort and performance.
When it comes to buying a bicycle and especially a classic road bike it is very important to make sure that you choose a bicycle in the right size.
The frame size is.
Nos campagnolo olympus seatpost 28 6mm 90s vintage mountain bike bicycle new.
While there are any number of post diameters out there most modern road and mtb bike frames accept a seatpost of either 27 2mm in diameter standard 30 9 or 31 6mm oversize.
The older your vintage bike the more difficult it may be to find the right seat post for it.
A database of seatpost sizes for various bicycles.
Metal should be greased but carbon fiber should not be.
Shimano deore xt early black seatpost 27 2mm.
Nos campagnolo olympus seatpost 28 6mm 90s vintage mountain bike bicycle new.
Using a carbon fiber seatpost in a metal frame or vice versa invites problems.
These are more commonly seen on mountain bikes where the longer seatposts can use the extra strength.
Common diameters arey 30 9mm and 31 6mm.
The most important dimension to consider is diameter as it must correspond to the internal diameter of your seat tube in order to have a snug fit.
Columbus built steel seat tubes in diameters 26 8 27 0 27 2 etc.
Our bike size calculator will help you to determine the correct frame size.
Gravel bike women bikes road bike touring men 27 in vintage bicycles titanium seatposts for road racing bikes.