So, I'm a long time lurker. Been looking at ratty and roddy builds since 2011. I've been messing with ebike stuff since 2017, but I have been reading about ebike building for longer.
Here's a brief explanation of my ebike shenanigans:
My first ebike kit was salvaged from a yard sale. Took me a week to figure out that someone had the black wire as live and red as neutral (Canadian???) and repair the controller. Put all the components on a 1950 Schwinn DX style frame (called her the Nifty '50). It was a 350w front wheel setup at 36v running three 12v 12ah SLA's in series.
After a year I finally got courage and started buying more ebike stuff. Picked up two Golden Motor Magic Pie Version 1 hubs. Built up a 1960's Raleigh Sports frame around the rear hub. Eventually put everything on a slightly older Sports frame. Power was 500w run at 36v nominal using my first li-ion pack from em3ev (36v 20ah). That bike taught me a bunch about electronics. Ran a SA dynohub for the front lights! Put about 2500 miles on that guy, but now I want more, way more!
Watt now???:
Friend of mine gave me a late 30's Snyder Fastback frame badged as an Overland! Bugged the heck out of him for months before he finally sold it to me. He told me that the deal I got was contingent on me turning this thing into a cool electric bicycle.
The plan kept morphing and eating at my brain. I was determined from the very beginning to make a nimble ebike that is reliable and confuses the crud out of people who think it isn't an ebike.
Current Prospective Build Specs:
MP(V1): Removed the original internal controller out and will run statorade and hubsinks to compensate for the higher power demands (about 2000w of continuous power)
Controller: CSC 48v Bluetooth sinewave controller to be run at 52v nominal and about 34 amps max continuous.
Battery: 52v 23ah from EM3ev with continuous current rating at about 37 amps.
Brakes: 90mm Sturmey archer up front with 180mm disc in the rear. I will also be running regen so torque arms will be a huge must! Both brake levers will run cut-offs to activate those.
Frame mods: I will being adding a disc brake mount to the rear dropout area, but I really hate modifying older frames. Wanted to run something less invasive, but safe comes first!
General electronic mods: Going to run 10 awg (teflon wire maybe??) wire from directly outside the hub to the controller for the phases. I am working to make sure the phase wires don't have to travel far as to limit the thermal stresses on transmitting current. Will locate the controller either under a rear rack or between the rear fender and the seat post tube area.
That's pretty much it for now. Hope you guys like it. I will be posting more pictures as the style and the system evolve as time goes on. Hope to see more ratty builds with hub motors in the future!
Here's a brief explanation of my ebike shenanigans:
My first ebike kit was salvaged from a yard sale. Took me a week to figure out that someone had the black wire as live and red as neutral (Canadian???) and repair the controller. Put all the components on a 1950 Schwinn DX style frame (called her the Nifty '50). It was a 350w front wheel setup at 36v running three 12v 12ah SLA's in series.
After a year I finally got courage and started buying more ebike stuff. Picked up two Golden Motor Magic Pie Version 1 hubs. Built up a 1960's Raleigh Sports frame around the rear hub. Eventually put everything on a slightly older Sports frame. Power was 500w run at 36v nominal using my first li-ion pack from em3ev (36v 20ah). That bike taught me a bunch about electronics. Ran a SA dynohub for the front lights! Put about 2500 miles on that guy, but now I want more, way more!
Watt now???:
Friend of mine gave me a late 30's Snyder Fastback frame badged as an Overland! Bugged the heck out of him for months before he finally sold it to me. He told me that the deal I got was contingent on me turning this thing into a cool electric bicycle.
The plan kept morphing and eating at my brain. I was determined from the very beginning to make a nimble ebike that is reliable and confuses the crud out of people who think it isn't an ebike.
MP(V1): Removed the original internal controller out and will run statorade and hubsinks to compensate for the higher power demands (about 2000w of continuous power)
Controller: CSC 48v Bluetooth sinewave controller to be run at 52v nominal and about 34 amps max continuous.
Battery: 52v 23ah from EM3ev with continuous current rating at about 37 amps.
Brakes: 90mm Sturmey archer up front with 180mm disc in the rear. I will also be running regen so torque arms will be a huge must! Both brake levers will run cut-offs to activate those.
Frame mods: I will being adding a disc brake mount to the rear dropout area, but I really hate modifying older frames. Wanted to run something less invasive, but safe comes first!
General electronic mods: Going to run 10 awg (teflon wire maybe??) wire from directly outside the hub to the controller for the phases. I am working to make sure the phase wires don't have to travel far as to limit the thermal stresses on transmitting current. Will locate the controller either under a rear rack or between the rear fender and the seat post tube area.
That's pretty much it for now. Hope you guys like it. I will be posting more pictures as the style and the system evolve as time goes on. Hope to see more ratty builds with hub motors in the future!
