Oh dear,I'm clearly not good at this. Lot66,please explain/define bike specs.Well,I do not know what particular models my two bikes are;the Robin Hood Sports has the standard 21" frame & 26x1 3/8" rims;I'm not sure about the Gazelle Roadster:I'm guessing a 23" frame (28x1 1/2" rims)but I dunno.Well,thanks in advance,all the best,BYE for now and GOD BLESS!!! :-) :-) :-)
Regards,
W.L.SOON.