Will agree with Steve here. Have had my 56cm Sam Hillborne loaded up with 25 plus pounds of gear in panniers and rear rack and have had no noticable issues with frame flexiness. Even a loaded Carradice Nelson Longflap doesn't seem to change the handling. Other than weight shift of where the load is located. Add to the fact that last year my weight was around 240. So for my use, the Hillborne with a single tube (Singleborne?) is not under stiff.
That being said, I personally like the look of double top tubes on the larger Bombadil. Eric Platt St. Paul, MN On May 5, 4:48�pm, Steve Palincsar <[email protected]> wrote: > On Wed, 2010-05-05 at 14:22 -0700, William wrote: > > The 2TT has almost nothing to do with strength and almost everything > > to do with stiffness under cargo load. > > > A campeur didn't get extra tubes because Randonneurs were breaking > > their frames: > > >http://www.flickr.com/photos/bicigirl/4037516334/ > > Yes, but the bike shown in that photo does not have two top tubes. �It > has diagonal stays. � I'm not sure I've ever seen a photo of a campeur > with two top tubes. > > > A stiffer frame just responds to load better. > > If a double top tube was needed to make a heavy duty camping bike, I'm > pretty sure Bruce Gordon and Bilenky would be using them on their > camping (i.e., loaded touring) bikes. > > The only double top tubes I can recall (other than these new Rivendells) > are roadsters and newsboy bikes, and in the case of the newsboy bikes I > think the double top tube existed chiefly to provide something to attach > the "tanks" to. > > > �My 56 Hillborne is > > really floppy when my saddlesack Large is stuffed and I'm out of the > > saddle. �The whole frame twists from that rocking load. > > Maybe you ought to get some kind of saddle bag support or rack to attach > that flopping bag to. > > > � If you never > > load the Sam with cargo, you'll likely never notice and never need > > it. > > A flopping saddle bag isn't at all the same thing as well secured > panniers attached to a sturdy rear rack. > > -- > You received this message because you are subscribed to the Google Groups > "RBW Owners Bunch" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]. > For more options, visit this group > athttp://groups.google.com/group/rbw-owners-bunch?hl=en. -- You received this message because you are subscribed to the Google Groups "RBW Owners Bunch" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rbw-owners-bunch?hl=en.
