neptronix wrote:Very nice,a poor man's recumpence drive.
Question.. could you produce more of these fairly cheap?
Regarding production - probably not...but you can PM me for the gory details...and I can tell you up front it won't be cheap...sorry.
farmkid4 wrote:^+1 Very nice and tidy!
What kv is that motor 250?
The stock 8085 motor I am currently using is 170kv
The stock 80100 motors come in 130kv and 180kv
RWP, So how long do we have to wait to hear your opinion on driving the bottom bracket?
Also how much reduction did you manage in the 1st stage?
I still love the lines on that Cortina
a perenial favorite of mine.
Thanks Thud! First stage is 20t to 95t or 4.75 to 1.
I will post more about the rideability as soon as I know more. These days I am taking everything very slow.
But what I can say is that because it's geared to top out in each gear at 25mph - 31mph and 39mph - pedaling is a joke. Top gear is the only useful gear for pedaling, and it tops out at about 10mph and I am spinning the pedals pretty fast, and I geared it lower so the motor will not have to pull such a high gear when starting up.
Because both chains are BMX I modified the derailleur to allow for the wider chain and I used only 3 sprockets on the cassette with 2 spacers between each sprocket to accommodate the wider chain. Shifting is 2 clicks of the trigger shifters up and down - not fast but it works.