"When your bike weighs 90 pounds, a 2nd top tube may actually be doing you some good!"
I cannot agree and feel compelled to reply because I think others could be misled. I'm no heavyweight (170 lbs.) and commute on a 2-TT 60cm Hillborne. Granted I carry a commuters load in the rear but nothing close to a 90 lbs. bike. When I stand to climb hills, which I do every day, I'll get a "bit" of chain rub on the front derailleur even when the adjustment is finely tuned; friction shifting of course. I'm no expert, but I believe this would be caused by frame flex. AND THAT"s with a 2nd top tube. I'd hate to think what this particular frame would be like .... without. So the ride is not as stiff as some might believe. I figure the 2nd top tube only adds about 8 oz. to the overall weight of the bike and in return I get a properly designed frame, for my uses anyway, and a conversation piece that seems to draw attention. Afterall, it's not like a person in the USA sees a double top tube bike everyday. Prior to my purchase I never thought I'd own a 2-TT. As a matter of fact, the first time I visited RIvendell I wouldn't even ride one. But the second time around I bought one! 12,000 miles later I've never regretted it once. Matt On Thursday, February 26, 2015 at 12:49:45 PM UTC-8, Steve Palincsar wrote: >> >> >> When your bike weighs 90 pounds, a 2nd top tube may actually be doing >> you some good! I'm happy to have a diagonal tube on a tandem, too. >> Jan notwithstanding, I had a French tandem once with twin external >> laterals. They were decorative and made a nice place to cradle a water >> bottle, but provided no lateral stiffness whatsoever. >> >> >> -- 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/d/optout.
