View Single Post
Old 01-14-22, 01:38 PM
Senior Member
Join Date: Apr 2014
Location: Desert Southwest
Posts: 115
Mentioned: 2 Post(s)
Tagged: 0 Thread(s)
Quoted: 42 Post(s)
Likes: 0
Liked 23 Times in 17 Posts
Favorite tool for measuring seat tube inner diameter

I like to use a telescoping gage, placed an inch and a half or more into the seat tube, to measure the inner diameter.

Then read the measurement with a vernier caliper or micrometer.

I'll take 2-3 different location readings in case the tube has been compressed or ovalized.

Remember too that a lot of vintage seat tubes can benefit from a good honing to clear accumulated oxidation and debris.
cyclophilia is offline