Originally Posted by
rat fink
First of all, those Raleighs are top notch. Love them!
It seems as if that would be because that Peugeot has no trail, correct?
Does anyone know some approximate values that one typically finds in a 'twitchy' frame? Ex: head tube angle, seat tube angle, chain stay length, top tube length, wheelbase, etc?
What might someone surmise about a frame like this?
I have a Peug UO-8 from the early '70s, just like yours but with a smaller frame. Mine has a 72 degree seat tube, a 73 degree head tube, and 70 mm of rake, with a BB driop of 7.5 cm. The trail works out to 31 mm with 700x28c tires on it. Combined with the giant 46 cm chainstay length, it handles with the stability of a locomotive, which I think I'll like when I get tired. I can make it turn either riding or no-handing. I haven't tried any descents on it yet - some folks have opined that such stretchy bikes don't maneuver well when descending.
Measure the numbers for your Uni, I'd be glad to speculate based on them.