bzhwindtalker wrote:this is how I did It : I do not have a freewheel on the motor, just a track bike sprocket+lock nut screwed on the regular right side of the motor. As the lock ring was still unscrewing from torque, I tack welded it to the steel treaded insert. I would ned to grind that of to be able to change the motor sprocket, but it is do-able!
bzhwindtalker wrote:You are rigth, exepted that the tack is on a lock ring and not on the screw-on sproket itself. It is not overly complicated, you just need a welder, I did that with my stick welder... This method seems pretty bombproof to me!
It has a nice feature : the batt will fit inside the triangle, resting on the two front motor mounts. how many riding hours before destruction?
Tench wrote:Adam, i like your layout i can see some thought has gone into that regarding the chain pull and its influence on the rear suspension. I do think you need to raise the swing arm pivot a little more though, just enough to combat the sag from your weight, unless of course it has been drawn with the suspension loaded? in which case i think it is spot on! This will make a nice very useable bike that handles the transition from off the power to on it very well with minimal reaction from the chassis. I like how you have given priority to the motor chain and re-thought the pedal chain to accomodate this layout, Get it made!!
How about putting a fixed roller on top of the chain just above the swing arm pivot (the higher the chain is above the pivot the more it will try to pull the swingarm upwards when under power) this will keep the chain close to the pivot even under large suspension compression reducing the powers tendency to create squat and will help with keeping the chain at a more constant tension through the suspension travel giving the derailier an easier life with less chance of the chain jumping if the derailier cant react fast enough to keep the slack in check? Derailiers dont have very strong springs.
Your well on your way to a good design here Adam.
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