Originally Posted by
Drumnagorrach
My frame is a 1970s Harry Hall 21in,I wondered if modern frames had a more vertical seat tube.
Or is there an other explanation , have I got some other setting wrong ?
Some other explanation.
Originally Posted by
Drumnagorrach
My question was about modern frame geometry.
Was it? All modern bikes have the same geometry and all bikes from the 70s have the same geometry?