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Old 01-06-14 | 04:22 PM
  #8  
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nfmisso
Nigel
 
Joined: Mar 2011
Posts: 2,991
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From: San Jose, CA

Bikes: 1980s and 1990s steel: CyclePro, Nishiki, Schwinn, SR, Trek........

As noted above, Sun offers the CR18 with a 540 BSD (aka 24 x 1 3/8). Be careful about sourcing, because they also offer it with a 507 BSD (aka 24 x 1.50).
http://sun-ringle.com/wp-content/upl...chart_2012.pdf

Amazon has some ISO540 tires.

Last edited by nfmisso; 01-06-14 at 04:25 PM.
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