Originally Posted by
Dark Arrow
When measuring top tube do you use the center of headtube to the the center of the seat tube or from where the Top Tube comes into contact with the head / seat tubes?
Cheers
Bear
The top tube or effective top tube for those weird sloped tube bikes in fashion these days should be measured center to center. The effective top tube length is projected from the head tube to where it should be on the seat tube as if there was a level top tube (like there should be).