Thanks xadmx.xadmx said:found this link might be of interest
http://www.troeger-engineering.de/content/lexikon/Allgemeines_ueber_Getriebe.pdf
In the same vein:
Thanks xadmx.xadmx said:found this link might be of interest
http://www.troeger-engineering.de/content/lexikon/Allgemeines_ueber_Getriebe.pdf
This was my first attempt:bobc said:Pondering this gearing issue, I wondered if anyone had thought to use an epicyclic box.
Miles said:Looking good.
Deserves it's own thread, I think.
Perhaps a sram dual drive?Joe T. said:Yah know…. A Thud 2speed concept would be quite easy to adapt to a GNG/LR type of setup. Recently I have been wishing I could get more top speed out of my bike. My problem is the low range is right where I need it to be as I mostly ride in the woods. But…. Some times I need to out run a storm and my 20 MPH max top speed is begging for more. The power is there I just don’t have the gearing.
All that would need to be done would be add a second drive and chain on both the jack shaft and the crank. A selector on the jack shaft to pick the drive gear and poof! Instant overdrive. You could make high range 360% over low range so there would be no overlap. The rear, N360 in my case, would do its job as normal. Shifting into high on the motor and low on the bike would make a seamless transition.
Just thinking out loud here.
wineboyrider said:Perhaps a sram dual drive?