Joined: Dec 2004
Posts: 12,537
Likes: 791
From: Middle of da Mitten
Bikes: Trek 7500, RANS V-Rex, Optima Baron, Velokraft NoCom, M-5 Carbon Highracer, Catrike Speed
I'm no expert, but I think you can get 349 Stelvios in either 25 or 28mm - I'm not sure which - everything else for that rim size is fatter. (?) So there's no need for a 20mm wide rim. No bones about it, the Aeroheat is a nice rim.