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-   -   What Diameter Seat Post for a Univega Viva Sport? (https://www.bikeforums.net/bicycle-mechanics/721495-what-diameter-seat-post-univega-viva-sport.html)

trekday2100 03-20-11 10:55 PM

What Diameter Seat Post for a Univega Viva Sport?
 
The steel seatpost and seat has got to go. Does anyone know what diameter seat post would fit? The bike I estimate was made in the early 80's.

nwbikeman 03-21-11 12:42 AM

Take the old post out and near the bottom were the minimum insertion line is will be the size, a 3 digit number like 26.8 or 27.2 and that will be the size. If unmarked then use a set of calipers to get the size or most lbs have a tool to measure the frames seat tube forthe ID of tube.


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