Originally Posted by
The Golden Boy
FWIW- putting 700c x 35 Compass tires was the best thing I ever did for my 85 Trek 720.
FWIW- the geometry of the 85 620 was identical to the 85 660 race bike- with the exception of the chain stay length and fork rake. I don't know about the 84 model.
If you're that on the idea of cushy tires- I'd do 700C and Compass Bon Jon Pass tires on the 620.
FWIW- my 86 400 Elance has the most aggressive geometry of all of my bikes- with the exception of the chain stay length at 42.5.
I've toyed with the idea of doing 650B on my 400 Elance. While I don't have the tires I really want on it- I do have the brakes I really want on it.
I haven't given up on the 620 - just need to figure out the best way to modify it to find the sweet spot. This winter I took it down to the frame and rebuilt it mostly (for me) with the original parts. Currently it's a 3x7 half-step w/granny and ratcheting bar ends. I am still using the 27" wheels which are in VGC. You're right that a switch to good 700c wheels and slightly bigger quality tires would be an improvement.
And, maybe I'll take the Gevenalle 10 speed plunge on my 620.
You've probably seen what this guy did with his '85 620 - an interesting read and money is no object.
Fuji Otaku: The Phoenix Project - The 1985 Trek 620 Alights