enough for my use ?

[bentech]

I have a rocky mountain Fusion mountain bike. I want to convert into ebike. I was thinking using 2 steering colomn motor / gearbox from
a chevrolet coblat with 2 controller and a twist throttle. But it might be easier to use a hub motor system.

I want to use the bike to go at my job once ot twice a week during summer day.
I weight 200 lbs and my job is 18 miles from my home. I'd like to get there in less than
45 mins so i need a top speed of 22-25 mp/h. The travel is on pavement and its pretty flat
(only one overpass to climb).

is this kit can do it ??
And also is it reliable ??

http://www.bmsbattery.com/ebike-kits/347-bafang-350watts500watts-bpm-motor-e-bike-kit.html

http://www.bmsbattery.com/36v/571-bottle-ebike-battery.html

 

[jay7264]

your gonna need at least 20ah 36v i dont think that motor can do it. i have a mac motor on mine and it does well and my commute is 17miles. my battery is 26ah

 

[999zip999]

Very weak battery will not last.
Check out ebike.ca, em3ev or ping. Don't waste money on to cheap a battery.

 

[wesnewell]

Quick answer, no.
Welcome to ES****Do this before your first post or now (it's retroactive)*****
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[d8veh]

The motor kit will be fine provided you select the right RPM, but that battery is only suitable for 15mph 250w motors. You need a battery that can give 20 amps continuous.

 

[dogman dan]

You don't mention where you live, or what kind of climate. So what might be fine in one place would melt down in my hot desert climate when summer comes.

That is a pretty long commute, though flat, so I would tend to recommend a larger direct drive motor. In the USA, that might be a kit from E-BikeKit, or if you are on a tighter budget, a YES kit. See those on Ebay, shipped from California. A dd motor will take a beating, even if it gets to 110F where you live.

18 miles is a long trip, but it's still possible to make it on a lithium battery of about 800wh of size. That means 36v 20 ah, or 48v 15 ah. Either one will get you at least 20 miles at 20-25 mph. 25 when you leave the house maybe, but you will slow some towards the end of the ride. For a regular daily commute, charging twice a day, I'd recommend a lifepo4 from pingbattery.com. It should last a few more cycles than other chemistries. I got at least 3 years of solid use from each of my pings.

But make sure you don't have a controller bigger than 20-25 amps for a 15 ah battery. The most powerful Yes kit for example, comes with a 30 amps.

I could be guessing wrong, but at 200 pounds it did not sound like you pedal 25 mph all day with no motor. I sure stopped riding that fast when I got to 170 pounds. No more riding like when I weighed 115. If you are that young and fit, then the tiny motor might be fine in a faster version. But in general, a larger dd motor is the most reliable for a long hard commuter run twice a day.

Unless you have a route with almost no stop signs, it will typically take you at least one hour to do the ride. This is 10,000 miles of commuting talking. Yeah, I made it in 45 min once or twice. But generally it was 50 min for my 15 mile ride.

 

[heavymetalthunder]

I agree with dogman, making a 18 mile trip at your estimated speed will take you about an hour. Last weekend I took a 21 mile trip 1/4 street (with stops) and 3/4 bike trail (no stops) traveling an averaging of about 24 MPH it still took me about 50 minutes to finish the trip. To make the 18 mile trip in 45 minutes you might consider a 1000 watt 48v conversion with 25 AH worth of batteries. That system will get you closer to the 30 MPH average.

 

[999zip999]

You do need 20ah and a charger at the other end as charges don't travel well. And good to have a second.
A plug and play lifepo4 or mnc. No hobby lipo hobby battery. A simple plug it in with bms, no worry.
Match controller and battery.

 

[alsmith]

You do need 20ah and a charger at the other end as charges don't travel well. And good to have a second.
A plug and play lifepo4 or mnc. No hobby lipo hobby battery. A simple plug it in with bms, no worry.
Match controller and battery.

+1 for second charger.

If you get one you are stuck until you get a repair or replacement. And they have been known to arrive dead- one of my BMSBattery ones did which made me pleased I'd ordered 2 lower Amp rating chargers rather than a single faster higher Amp charger.

 

[bentech]

Ok thanks !!

I live in a little town near montreal,Canada.
Almost no stop from home to my job.