teslanv
1 MW
If you have been in this hobby for any amount of time, you have probably accumulated a vast assortment of random ebike parts. Add any kind of business activities to the mix, and you pile up LOADS of 1/2-working things, samples, silly project ideas and the like.
So it is with this in mind, when I found myself last Saturday morning, with nary a thing to work on (due to parts not yet having arrived), when I decided to see if I had enough "Shit Lying Around" to build yet another ebike.
First I spotted a spare Genesis V2100 frame on the shelf. Needing only to be reassembled, I grabbed it. Mainly just the frame was there, the other crappy components being stripped off long ago, including the fork, stem, handle bars, seat post and seat, cranks, etc.
Tossed the cheeseball stock shock, and mounted up a DNM RCP3 (less cheeseball) shock. - Check.
Found a new seat post just the right size, but no seat post clamp. But aha! - Hose clamp to the rescue. :wink: - And I stole a WTB seat from another derelict project. OK - enough parts to mount it up in my bike stand...
Found a suitable bottom bracket & ISIS crankset from a project that I had pulled it out of for a Mid Drive build. - Check.
RST Gila Fork I had picked up from a garage sale a while back. - Check.
Spare Avid BB7 Brake Caliper, just lying around. - Check. (Front disc brake only, with regen on the rear activated. More on this in a sec...)
I spent another $100 or so, buying the few parts I did not have on hand, including a headset, stem, Handle Bars, nice platform pedals, 180mm disc rotor, and a bag to stuff some LiPo packs in.
Motor Wheel is a special-order 4T winding, 28mm MXUS V2 DD Hub. 4T means it can take the same total phase current as the beefier 3K-Turbo 4T winding (About 60A), but would spin around 15 RPM per volt. I pulled one of the Sino Xie Chang controllers I have, 12x3077 size, and am feeding it 12S (44.4V Nominal). Even at this low of voltage, it still gets over 60 MPH on the bench. On the street I expect to have a top speed close to 40 MPH, pretty easily at 60A battery. (~2500W of total power).
I am doing this one up with some cool refinements. It will have a CA V3 display, and the motor has a temp sensor built in, so I will have temp monitoring also. And I outfitted the front ebrake lever with an inline switch, so that I can turn off the ebrake signal on the fly. This will allow me to do standing burn-outs.
I will probably mount up a simple PAS sensor and play around with the CA V3 settings to dial it in for a comfortable ride without the need for holding the throttle. And I will attempt to mount the 12S-16Ah Multistar LiPo packs in a compact seat bag. Not ideal placement, but on these Genesis frames, there aren't any great mounting options for a battery, especially with the controller mounted in the triangle.
Should be ridable by the weekend. 8)
So it is with this in mind, when I found myself last Saturday morning, with nary a thing to work on (due to parts not yet having arrived), when I decided to see if I had enough "Shit Lying Around" to build yet another ebike.
First I spotted a spare Genesis V2100 frame on the shelf. Needing only to be reassembled, I grabbed it. Mainly just the frame was there, the other crappy components being stripped off long ago, including the fork, stem, handle bars, seat post and seat, cranks, etc.
Tossed the cheeseball stock shock, and mounted up a DNM RCP3 (less cheeseball) shock. - Check.
Found a new seat post just the right size, but no seat post clamp. But aha! - Hose clamp to the rescue. :wink: - And I stole a WTB seat from another derelict project. OK - enough parts to mount it up in my bike stand...
Found a suitable bottom bracket & ISIS crankset from a project that I had pulled it out of for a Mid Drive build. - Check.
RST Gila Fork I had picked up from a garage sale a while back. - Check.
Spare Avid BB7 Brake Caliper, just lying around. - Check. (Front disc brake only, with regen on the rear activated. More on this in a sec...)
I spent another $100 or so, buying the few parts I did not have on hand, including a headset, stem, Handle Bars, nice platform pedals, 180mm disc rotor, and a bag to stuff some LiPo packs in.
Motor Wheel is a special-order 4T winding, 28mm MXUS V2 DD Hub. 4T means it can take the same total phase current as the beefier 3K-Turbo 4T winding (About 60A), but would spin around 15 RPM per volt. I pulled one of the Sino Xie Chang controllers I have, 12x3077 size, and am feeding it 12S (44.4V Nominal). Even at this low of voltage, it still gets over 60 MPH on the bench. On the street I expect to have a top speed close to 40 MPH, pretty easily at 60A battery. (~2500W of total power).
I am doing this one up with some cool refinements. It will have a CA V3 display, and the motor has a temp sensor built in, so I will have temp monitoring also. And I outfitted the front ebrake lever with an inline switch, so that I can turn off the ebrake signal on the fly. This will allow me to do standing burn-outs.
I will probably mount up a simple PAS sensor and play around with the CA V3 settings to dial it in for a comfortable ride without the need for holding the throttle. And I will attempt to mount the 12S-16Ah Multistar LiPo packs in a compact seat bag. Not ideal placement, but on these Genesis frames, there aren't any great mounting options for a battery, especially with the controller mounted in the triangle.
Should be ridable by the weekend. 8)