45/571 tires

[cbman]

so I guess the rims on a B&W schwinn won't allow normal 26" tires. Anyone know about the 45/571 rims? I wanted to put knobbier tires on it but I can only find 1 type of tyre to fit the rim. and it's a street slick . HELP! :x

 

[deorman]

You'll need to get some 559 wheels to run knobbies. 571 rims only take S-7 1 3/4", or a 2" (not the same as 2.0") that nobody makes anymore.