Jan Heine talks about making a similar custom derailleur for his Rene Herse in the latest issue of Bicycle Quarterly. He says that having a constant tension on the chain provides huge benefits in shifting and overall performance.
—Eric N [email protected] www.campyonly.com www.wheelsnorth.org Blog: http://campyonlyguy.blogspot.com Twitter: @campyonlyguy > On Jan 12, 2015, at 12:01 PM, Anton Tutter <[email protected]> wrote: > > Fair enough. And you KNOW I would never ask about #5, as I embrace DIY and a > hack culture in general. > > I was just curious why you would do this unless there was something > particularly nagging about your current derailleur setup. To do so out of > historical curiosity alone earns bonus points. > > Carry on. Interested to see the outcome. > > Anton > > > > On Monday, January 12, 2015 at 1:10:40 PM UTC-5, Bill Lindsay wrote: > Anton, > > Can you be more specific? Why what? I'll take a guess at five possible > things: > > 1. Why would you want to try using a springless rear derailer? Because they > were popular during a very interesting period of cycling history, and > disappeared basically by historical accident, and are now essentially > forgotten. I'm curious at what was lost. > 2. Why would you bother destroying a perfectly good derailer? Just a > creative outlet. I think about bikes a lot. It's meditative and at the same > time it is mental exercise. > 3. Why don't you just ride instead of over-thinking things that are > perfectly fine as they are? If I had more free time in the daylight I > probably would. If I had less mentally idle time, commuting to and from > work, maybe I'd come up with fewer ideas > 4. Why make a non-linear shifter to complement your non-linear derailer, > making the pair linear? Because in the lower end of my 9 speed cassette, I > find the action on my downtube friction shifters very sensitive. All my > overshifts and ghost shifts happen in cogs 1 and 2. Looking at the math, I > found the geometry of my derailer demanded that sensitivity. I'm thinking > maybe I can smooth that out and get fewer missed shifts and ghost shifts in > the low gears > 5. Why make DIY bike parts? Why don't you just buy what is available? > Partially because I don't always find the industry at large is motivated by > the things that motivate me. Partially because I'm a design guy and I enjoy > putting my own fingerprint on my builds. Partially out of just a general > curiosity and desire to explore ideas. I'm inspired by current and > historical builders. One builder who particularly has inspired me is Charlie > Cunningham. That's a guy who feels absolutely zero obligation to conform to > what anybody else thinks a bike should look like or should be. > 6. Why do you think a springless rear derailer is vastly superior to a > normal derailer with a return spring? I don't, and never said I did. I'm > just curious and like exploring. > 7. How much faster do you expect to ride with this? Zero miles per hour > faster > 8. What are you trying to get out of this project? Grins > > Maybe you meant none of the above. Maybe you asked because you are pretty > sure it's a stupid waste of time, which it might be. Add it to the long list > of ways in which humans have wasted time. Maybe you meant something much > different. > > On Monday, January 12, 2015 at 8:43:28 AM UTC-8, Anton Tutter wrote: > Okay, but why? > > > > > -- > 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 [email protected] > <mailto:[email protected]>. > To post to this group, send email to [email protected] > <mailto:[email protected]>. > Visit this group at http://groups.google.com/group/rbw-owners-bunch > <http://groups.google.com/group/rbw-owners-bunch>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at http://groups.google.com/group/rbw-owners-bunch. For more options, visit https://groups.google.com/d/optout.
