Clipless in Coeur d'Alene
Joined: Mar 2012
Posts: 1,996
Likes: 22
From: Coeur d'Alene, Idaho
Bikes: Tandems: Calfee Dragonfly S&S, Ventana ECDM mtb; Singles: Specialized Tarmac SL4 S-Works, Specialized Stumpjumper Pro, etal.
For a tour in Germany this fall I plan to run 28mm Conti 4Seasons on "skinny rim" (18.5mm) Spinergy wheels and with our Enve 2.0 fork. Currently we are running the same tire in 25mm has plenty of clearance so I don't see a problem fitting the 28mm either. Calfee advertises their standard frame setup as accepting a 28mm tire, so we'll see.
That is, unless I find a wider (~23mm) rim choice. I am confident that a 23mm rim w/25mm tire would be a perfect allround combo for us.
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Since I posted just after Ritter's examples above, I have just one point to make about the last one, re:Ultremo 28mm ZX... he has a 23mm rim which will pull down the tire height vs a ~19mm rim which would make the tire profile taller.
Last edited by twocicle; 06-12-13 at 04:50 PM.