That's a pretty big difference in tire size. 650b x 42 mm = 668 mm diameter 700c x 45mm = 712 mm diameter
Difference of 44mm diameter, 22mm radius. So you'd have to extend the stays 22mm. You probably don't have that much extra length on the stays. With longer stays, you probably could make the P50s fit; they're pretty flexible. But if you're buying new stays you might as well buy new fenders. Tim On Mon, Feb 10, 2014 at 3:32 PM, Michael Williams <mkernanwilli...@gmail.com > wrote: > Hey group, I have a question. I have a set of the SKS P55 fenders and > run them with 650bx 42mm tires, is there any reason I just cant extend the > stays a little and run a 700x 45 tire under there on a different bike. On > the Riv site and the SKS site they recommend the P50s for for 700x45 and > the P55s are specifically for 26" wheels/tires. I would think you would > just be able to extend the stays a little. Thank you in advance. -Mike > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to rbw-owners-bunch+unsubscr...@googlegroups.com. > To post to this group, send email to rbw-owners-bunch@googlegroups.com. > Visit this group at http://groups.google.com/group/rbw-owners-bunch. > For more options, visit https://groups.google.com/groups/opt_out. > -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To unsubscribe from this group and stop receiving emails from it, send an email to rbw-owners-bunch+unsubscr...@googlegroups.com. To post to this group, send email to rbw-owners-bunch@googlegroups.com. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/groups/opt_out.
