Originally Posted by
bargainguy
Is it possible that's not the original wheelset? I've run into a few 19" early 80's C-dale bikes and I don't remember them with anything other than 27" rims.
The '83 catalog states the ST500 would have come with Wolber Super Champion 58's in 27x1-1/4" with frame sizes 19, 21, 23, & 25. I don't see a footnote stating the 19" came in a different wheel size.
There's an off chance that a 700c wheel might work in the frame but you might not be able to adjust the brake pads low enough for the smaller rim. So a 700c could theoretically work with longer reach brakes and would certainly make a wider range of tire and tube choices available.
Brake pads are mid level in the calipers, no way will a 700c work out front. As far as I can tell its
not a 19" frame. Engineering diagram pictured in '83 catalog appears to show a C2C measurement for ST. Maybe C2T is 19" but C2C is clearly closer to 18". 622-590/2 = 16mm height difference. No way!!
Originally Posted by
clubman
I looked at one of them and it's rated for 70 psi so they'd be OK for those rims. I'm now thinking the Continentals are really not worthy of that frame. 650b wheels perhaps?
650B would probably fit.