Sorry for the delay but a new creature has come in my life, and is not the E-bike, He is my son Paul ^_^
But the E-project is still in action....
I remember you the frame base that I choose for the conversion, is the same frame in the 3 photos only downtube is different:https://picasaweb.google.com/panurgos75/Bikes#5571715246071439266https://picasaweb.google.com/panurgos75/Bikes#5572375576537261554https://picasaweb.google.com/panurgos75/Bikes#5572375667263788802
Until now these are my choices:
- Frame: new downtube and new cranck area.
The New downtube is ready to be machined, and combines with the top plates as the old one. It consists of 2 parallel boxes that holds up to 4 5000mAh 6s turnigy packs with wiring and board each, so can use up to 12s 20A; these two box from solid Alu have in the down-side connections for the drivetrain/crank unit.
Here the first rapid drawing:https://picasaweb.google.com/panurgos75/Bikes#5605862075393747586
- Charger: I go with http://www.tppacks.com
boards/Hyperion config for one-plug charge/discharge/balance.
- Motor/ESC/Throttle: An Astro 3220, a CC160 HV, and throttle interface all from Matt.
- Drive: I'm always moving in two different ways as two single projects:
i) The first is a separate motor/pedals traction drive that requires sprockets and/or pulley on both wheel side as Matt's one, and I will buy his drive for this, but 1 or 2 stages? (4:1 or 12:1).
ii) The second is to use a a transmission that drive the motor line output and the cranck line (with a Hammershmidt or shlumpf) thru a single final chain, to a (single speed) freewheel hub in the conventional right side of the wheel, I like to put the jackshaft (with a freewheel for the chain coming from the cranck) in the swingarm pivot hole, but there's some size problem, as for the clutch, I will try.
Can the rear freewheel allow to exclude the torque limiter need as ESC-Motor protection? (Matt?)
I wanna try to use a centrifugal clutch for a stop-start climb ability and less stress for motor/controller.
Here in Italy there are a lot of manufacturers of these items for small motorcycles, gas-bike, karts and minimoto and I'm looking for the best possible solution (weight/dimension). Please comment.
When I will have stuff in my hands I will post photos and specs.
Any comment to ratios-architecture will be precious, especially related to the astro 3220 specs on a 26" bike, from Matt and all the Astro users/experts. I assume eventually to set the clutch for a 1500-2500 rpm range engagement, and a 2500-8000 motor rpm range of use; also for these assumptions any suggestion will be appreciated.
I have not a real need for pedaling and use motor at the same time, cause this is an up-hill down-hill project, but when downhill, with motor off, some pedaling is needed.
Later I will post some CAD's so you can better figure out the project.
As for the bike base, all parts will stay in a briefcase ^_^https://picasaweb.google.com/panurgos75/Bikes#5604751607604655794
Sorry for my English