on 11/17/10 11:26 AM, Jeremy Till at [email protected] wrote: > Retro-direct drivetrains were developed in the early years of multi- > speed bicycles as just another way to have multiple gears, around the > same time that IGH's and modern derailers were being developed and > before either of those were perfected enough to become ubiquitous. I > suppose an advantage over the other two systems is that it doesn't > "shift" per se--both gears are always engaged--so there's fewer > movable parts to break.
Anyone interesting in more info on Retro-Direct should also search through Kent Peterson's blog - he's cobbled a couple together and written up some good descriptions of them. e.g. - http://kentsbike.blogspot.com/2008/12/retro-direction-perfection.html There's also an excellent discussion of them, with images, in Frank Berto's "The Dancing Chain". - J -- Jim Edgar [email protected] "One Cog - Zero Excuses" L/S T-shirt (and others!) - Now available http://www.cyclofiend.com/stuff Cyclofiend Bicycle Photo Galleries - http://www.cyclofiend.com Current Classics - Cross Bikes Singlespeed - Working Bikes Gallery updates now appear here - http://cyclofiend.blogspot.com -- 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.
