RR Peoples Choice Award: Derailleur-Guide

Mar 26, 2012 at 23:12
by Edge Factor  

The People’s Choice Award: Round 3 is FINALLY here! YOU are the judge. The People have chosen the Top 5 designs from the Reality Redesigned contest. Will the DF-350 be the design that takes home the awesome custom built prize bike, worth $8000 and a Drift Camera?

DESCRIPTION: Through its unique design, the Derailleur-Guide allows the user to have the stability of a chain guide with the versatility of running multiple chain rings. The complex design of the rollers and the expanding restraints allow for the shifting to rival that of Shimano and SRAM components. Weighing in at around the same weight as a standard chain guide, the Derailleur-Guide makes an excellent addition to any bike.

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design

derailleur guide frame design
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15 Comments

  • + 13
 I've been waiting for this one for a while. Seems like a no-brainer.
  • + 4
 agreed, I don't know why this took so long...
  • + 6
 one of the coolest ideas i've seen here in the contest that looks feasible and brilliant. i hope a big company helps you out so it becomes into a reality.
  • + 2
 As far as I can tell, this design employs some great reasoning. but it neglects to account for the change in diameter of the chainrings. restricting the vertical motion of the chain between gear changes won't be to conducive to smooth operation with a large ratio range; at least at one end of the spectrum. Am i right?
  • + 2
 Actually, If you look at the 10th picture (the rear view) or any of the pictures if you look hard enough, you can see that the guides sit in groove and have a spring and cable attached to them so that they do, in fact, become further apart when shifting into the larger gear and closer together when shifting to the smaller gear.
  • + 1
 Ah, i see now. I stand corrected. Thanks. And so, with the springs the "push rods", for lack of a better term, will actually be only in tension. good thinking. a video showing the mechanism in action would be great. done a cost analysis?
  • + 1
 Hi everyone, thanks for all the support. Here is a link to some more images of the derailleur-guide, including some exploded views and how it looks on a bike carrottop596.pinkbike.com/album/Reality-Redesigned . Let me know if you have any questions and I will try my best to answer them.
  • + 1
 Great idea! However, if you are going over rough enough terrain to be worried about throwing a chain, don't you also want some sort of bashquard to protect the chainring and chain from being hit?
  • + 2
 Bash guards are great for protection and can still be used with the Derailleur-Guide.
  • + 3
 i'd still run single (just because i couldnt afford shit else right now Razz ) BUT THIS IS GENIUS!!!!!!!!!!!!
  • + 3
 Very slick... I could see some issues with the sliding pieces getting gunked up, but other than that, I like it.
  • + 2
 If it can be done without that little spring breaking all the time then this is cool!
  • + 18
 Like the little spring in de-railers we have now?
  • + 2
 I've been thinking about this for a while now. Props to you for actually doing it!
  • - 1
 I like this idea but have tryed making a real one a few years ago( not exactly like this though) can work with sealed drive?
www.youtube.com/watch?v=jDuWn2ncOp8

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