My old steel Trek 957 frame hardly has any clearance between the wheel and the seat tube. With 23mm tires I've only got a few mm clearance with the derailleur bracket.

I'm a bigger dude...220 lbs. I've been riding this with 23s for the last 5 years. Just blew the sidewall in a newer GP5000 so time to buy new tires anyways.

I'd go 25mm tires if I knew I still had clearance.

Anyone know or recommend a 25mm tire that only gets wider and not much taller?