The Powerblocks come in at exactly 50mm on Araya RM 17 rims (1.97). Don't know the specs on these rims but the R17s appear a bit on the narrow side for 26" wheels. Might be a bit close for comfort if you only have 56mm clearance.
On Friday, August 19, 2016 at 5:17:44 PM UTC-4, Mark in Beacon wrote: > > Based on a recommendation by Jimmy L., I have been happy with the Tioga > Power Blocks on my tandem the last couple months. Good on gravel & dirt as > well as pavement. They are advertised as 2.1" but are not knobby and I have > them on slightly undersized rims. Will measure when I get home. > > On Wednesday, August 17, 2016 at 8:15:03 PM UTC-4, drew wrote: >> >> I got used to having bikes with real big clearances and overestimated my >> capability on this 84 trek 890 I'm working on. 2.1 knobby tires are rubbing >> a bit (measure 2.5 at the knobs) >> >> This bike is going to be used on mostly on pavement and fire roads, no >> crazy trails or extreme mud. My wife is pretty cautious. >> >> Calipers say I have 56mm clearance at the tightest spot, and I'd like to >> go as big as possible. I guess that means something like a 1.75 with knobs, >> or a 2.0 slick that maybe measures a bit smaller. >> >> Puncture protection and longevity > suppleness >> >> Seems like there are a lot of really low end hybrid type tires that fit >> this bill but not sure if any are worth the time. >> >> Ideas? >> >> -- 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 https://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
