@amberwolf
yep I hears wuts yur saying
The EMoto trike is limited to about 100# above and beyond all the crap I carry on it, which includes The Hitch, an overbuilt trailer hitch made from 1/8" steel plate and 2"x2" 1/8" thick steel tubing ... -weighs about 20 pounds (heavier than the trike's whole frame LOL)
sumtimes ya just have to let those finds go to someone else... (my motto, not yours)
I scarfed a shower door yesterday- made of aluminum, nylon wheels and guides and some weird, semi-flex textured plastic
I can see it as a future lower battery box for My Trike (this project

)
I already used some nylon for a chain guide so the pedal chain can comfortably clear the jackshaft.
However that leads me to today's discovery:
Today I did speed trials except... I have no speedometer so I just went as fast as the motor would take me, which seems to be faster than I want to go... even up a 5% grade- in reality...this was another battery capacity test. hmmm
I traveled 4.2 miles with a 42V discharging to 39V... the actual current use is still being determined by my charger.
-Installed the jackshaft after remounting the 13 tooth gear
-mounted the MY1018 motor
-installed 170mm crank arm... gotta love single-piece cranks because the only 'special' tool needed is a large crescent wrench.
I have the 15" model (crescent wrench, that is)- also useful for chasing small children off my lawn except- I have no lawn... and there's a distinct lack of small children anyways. Might be the reason there's also a severe shortage of used or discarded bikes. And NO, I wouldn't think of chasing small children... they run too fast.
The 170mm crank made my leg muscles hurt... however my knees voiced their approval.
I realized my knees hurt yesterday because I was likely spinning the cranks at a rate I shouldn't be doing.
The problem, and it's likely I knew about this then forgot about it, is the gearing.
My Trike uses the same gear set as the EMoto trike, which is known to have a top speed of 8MPH.-as seen on those in-the-bike-lane radar thingies-.
The difference is My Trike uses 20" drive wheels, whereas the EMoto has 24" drive wheels.
time for a gear-up.
The simplest solution is a (much) larger chainring. I pretty sure the largest I've seen online for a one-piece crank is 56 teeth. 44/14 vs 56/14 (3.14 vs 4 = not enough)
The not-as-simple-but-I-already-gots-sum-of-the-parts is reversing the order of the gearing, using a 6 speed gear cage and a (have to buy) 17 tooth sprocket on the jackshaft driving a (have to buy) 9 tooth sprocket on the drive axle, along with the 44 tooth freewheel for the MY1018 motor's 9 tooth sprocket and engineer a derailleur arm mount on the bearing hanger (likely the derailleur would then shift all SIX gears instead of it's current 5.)
(confused yet LOL)
-did I mention a motorcyclist did "the wave" LOL
so (44/14) + (17/9) = not much better (~5 if you're not handy with the calculator)
Surf's Up!