Which 28mm clinchers are actually close to 28mm?

[robertbb]

Originally Posted by cgolvin

I don't have calipers but my impression/experience aligns with @pritchet74 -- on my HED Belgium+ rims Veloflex Corsa 28s have zero clearance issues whereas some other 28s are no-go on my Peg.

Veloflex Corsa's are a tad (roughly 1mm) undersized on a C17-C19 rim. They'll measure truer to size on a C20 or C21.

I found the Veloflex Corsa 28mm aligns with a Vittoria Corsa 25mm.

Horses for Corsa's I guess.......................... ok I'll see myself out.

[clarendon]

A lot of variables but another data point for Veloflex Corsa Evo on Bora One 35 rim. 28s measure up as 28s and fit on my Peg (just).

[Wunder]

Originally Posted by echappist

Too many variables in this. Depend on the rim and the tire.

Quick data point on my end. GP5000 non-tubeless tires were pretty close to 28 mm initially (28.6 mm, iirc). After a few thousand miles, it has expanded to slightly more than 29 mm. Rim is Kinlin XR-31T

29.5mm inflated to 70PSI for a 28mm 5000 on an AL33 for me (19.6mm inner). That's considerably smaller than a 28mm 4000 which is 32mm but still may be a tad bit too large. A 25mm 4000 would probably measure almost exactly 28mm on those rims.

[Applesauce]

My 30c Pirelli P-Zero Racr TLR are about 28mm, I think. They’re currently mounted on hookless 19mm rims. I’ll measure them when I get home later!

[Applesauce]

Originally Posted by Applesauce

My 30c Pirelli P-Zero Racr TLR are about 28mm, I think. They’re currently mounted on hookless 19mm rims. I’ll measure them when I get home later!

They’re 29.4 mm wide and just shy of 26 mm tall. This is on hookless 19c rims, would change a bit with hooks. Not quite what you asked for, but maybe these measurements will help? They’re considerably smaller than 30mm Corsa TLRs.