I put cheap C637 27x1 1/4" tires on a bike recently. Seem to ride ok, barely cleared the brakes on that bike.
Ditto what ddd says for me, I've had worse luck with thumping Kendas than CS myself. For what I paid not unexpected. I think a fiver each, which I haven't seen prices like that lately.
Speaking of 27's. The bike I put the Cheng tires on, a centurion, I scored in a curbside trash pile thanks entirely to a 27" tire. The previous owner had a 1 3/8" tire on the back wheel which was crashing into everything preventing the wheel from rolling. At least this is what I assume is the reason it was in the trash pile. He probably got fed up with the tire swap not going smoothly on the old junker. I put 2 and 2 together after getting it home in the dark..
Last edited by riva; 10-17-19 at 10:27 AM.