BVH
1 kW
- Joined
- Mar 26, 2009
- Messages
- 411
I recently got a new Prodeco Oasis, Sram 8-speed equipped beach cruiser and fitted the Prodeco Outlaw SS, 28 MPH motor in place of the 20 MPH version to get me back to near the 30 MPH I had with my E+. I also installed long, swept back handlebars and a high-rise stem – all to give me a “bolt-upright” posture when riding. I need this for my wrists and back. In addition to the stock 51.2/12 Ah LiFeP04 rack-mount, slide into position battery, I bought a second identical battery and used my lathe and mill to custom modify a second stock rear rack to fit the second battery into the triangle. This battery and rack combo is exactly like the rear rack combo so when the rear rack battery is depleted, I simply stop, swap battery positions and am good to get home. It’s nice to carry 1 usable Kilowatt! (80% DOD) So now that I’ve tweaked the bike to fit my physical needs and am very happy with its’ looks and range, I need some help in the “power” area.
The motor/controller combo is limited to 1200 Watts below the governed top speed. The Cycle Analyst confirms this power level. My first electric bike was a built-up Commencal with the BMC “Black Lightening” V-2 motor when it was first introduced in about late 2009. I fed it with a 48V/20 Ah Lipo. I remember it would hit 35 MPH or a little more and had much more torque than the Prodeco. I’m toying with the idea of replacing the motor/wheel and controller with a new motor/wheel and controller combo capable of something around 2000 Watts/51.2V-40 Amps. I want it to be torque’y and capable of an honest 30 to 35 MPH. I also like silence so in the past, I would have said direct-drive motor only but I understand the BMC V4 is fairly quiet? So I would consider geared motors too. The controller needs to be very small to fit under the rack as the current one does.
I would appreciate some suggestions on combos. Cost is not the primary concern, performance and reliability are. I’d like something mainstream/known brand name. I’m very electrically and mechanically inclined and will do all the installation with the exception of I don’t want to lace the wheel. I want to buy a motor/wheel combo all laced up. The bike is already equipped with torque arms on both sides. Must be disk brake compatible. Side shaft exit wiring is preferred. Freewheel threads or cassette splines are fine. My riding style is long distance – all On-Road, 30 to 70 mile rides and I pedal nearly full-time with a light load on my legs. Typically, I’m using between 150 and 350 Watts, but like to have much more power available for the thrill of it for the occasional full throttle full speed mile or two. The first three rides on the Prodeco found me using between 12 and 15 Watt hours per mile.
The motor/controller combo is limited to 1200 Watts below the governed top speed. The Cycle Analyst confirms this power level. My first electric bike was a built-up Commencal with the BMC “Black Lightening” V-2 motor when it was first introduced in about late 2009. I fed it with a 48V/20 Ah Lipo. I remember it would hit 35 MPH or a little more and had much more torque than the Prodeco. I’m toying with the idea of replacing the motor/wheel and controller with a new motor/wheel and controller combo capable of something around 2000 Watts/51.2V-40 Amps. I want it to be torque’y and capable of an honest 30 to 35 MPH. I also like silence so in the past, I would have said direct-drive motor only but I understand the BMC V4 is fairly quiet? So I would consider geared motors too. The controller needs to be very small to fit under the rack as the current one does.
I would appreciate some suggestions on combos. Cost is not the primary concern, performance and reliability are. I’d like something mainstream/known brand name. I’m very electrically and mechanically inclined and will do all the installation with the exception of I don’t want to lace the wheel. I want to buy a motor/wheel combo all laced up. The bike is already equipped with torque arms on both sides. Must be disk brake compatible. Side shaft exit wiring is preferred. Freewheel threads or cassette splines are fine. My riding style is long distance – all On-Road, 30 to 70 mile rides and I pedal nearly full-time with a light load on my legs. Typically, I’m using between 150 and 350 Watts, but like to have much more power available for the thrill of it for the occasional full throttle full speed mile or two. The first three rides on the Prodeco found me using between 12 and 15 Watt hours per mile.