Deciding on what combination to use, 30mph 10mile each way.

[vptech]

My last battery from em3EV took 12 days to get to me in Cranbrook B.C.

 

[ibellisch]

My last battery from em3EV took 12 days to get to me in Cranbrook B.C.

So even longer to Toronto right? assuming they are coming through the pacific ocean.

 

[wesnewell]

http://www.goldenmotor.ca/products/26-Inch-Rear-PRO-901-Conversion-Kit.html
"At 48 Volts this kit is a 48 Volt 1000 Watt monster! Is is our fastest motor and tops out around 50 kph with a 26 inch rim."
If my formula is right, that's 31mph.

 

[ibellisch]

I am pretty much sure now that I'll be getting the 48V 15Ah battery from Golden Motor. - $649

haven't decided on which motor yet - contemplating on the Pro 901, 9C and Black Magic.

As for the bike, is CCM is good brand? My local store has a 1/2 price sale here on CCM bikes, I don't know which one is good.
http://www.canadiantire.ca/en/search-results.html?searchByTerm=true&q=ccm
trying to stay under the $300 bike budget also

Can someone show me a picture of a 10% grade hill and a 15% grade hill, I don't know what they'll look like.

 

[dogman dan]

Go to a website called map my ride. By mapping the steeper routes in your area, you can find out how steep your hills are. Chances are, if you have any too steep hills, they are not a mile long, or can be gotten around by another route.

A picture just always looks pretty flat. But if you have a 15% grade sidewalk, it's got steps.

As for the bikes, most of them are not that great. But they will work. The scope has the best shifters for sure, but I like the rear suspension arrangement of the Static the most.

 

[ibellisch]

Go to a website called map my ride. By mapping the steeper routes in your area, you can find out how steep your hills are. Chances are, if you have any too steep hills, they are not a mile long, or can be gotten around by another route.

A picture just always looks pretty flat. But if you have a 15% grade sidewalk, it's got steps.

I made my route and now how do I get the steepness information?

Edit: is this it?



This one is 17.49 KM commute, how does the grades look? Does it look doable? Is it a reliable source?



Some days I go further (17.49 km, different location) and closer (9.73 km) and some days I go both places. Basically the 9.73 km one is between my house and the 17.49 km one.

 

[molybdenum]

This is a good start. Now you will need to map just the steepest parts of your route and you can solve the slope:

Here, I've plotted just the steep part of a route. The graph looks pretty tame but...

The y axis shows an elevation gain of 66 m and the x axis shows a distance of 0.56 km or 556 m.

Slope gradient % = rise/run x 100

= 66/560 x 100

= 11.7% gradient

This is only the average gradient for the route plotted. You can see on the graph that the bottom section is a lot steeper.

The last part of your route looks the steepest, with what I'm guessing is a 40m incline over 400m, or 10% gradient. You'll have to map just this section to get an accurate measure. Certainly, your hills should be considered when choosing a motor.

 

[ibellisch]

I was about to order the 15Ah on Golden Motor but it's not in stock. I'll have to increase budget and get the 20Ah. Does anyone know if it's possible to restructure the battery to be fit in the bike triangle? (like what they/we do with the lipos). dogman, help needed here.

 

[mateusleo]

I was about to order the 15Ah on Golden Motor but it's not in stock. I'll have to increase budget and get the 20Ah. Does anyone know if it's possible to restructure the battery to be fit in the bike triangle? (like what they/we do with the lipos). dogman, help needed here.

It's usually possible, but if it's made of A123 cells (prismatic cells) you won't have many options.

 

[ibellisch]

How is the 9C 2807 motor? I think I'm ordering that one asap.

 

[Bayne020]

Hello, This is my first post. My plan is to build an ebike from scratch meaning simply just assembling one from buyable parts. It is primarily for my commute of 15 km one way on some days and 9 km on the other days. So what I want is a 20 Mile/30 KM range. My budget is $1100 CAD including taxes excluding the bike itself which I need help deciding on also. I am just shy of 170lbs.

First off: I am not sure how accurate Google Earth's elevation measurements are, but according to that, it has a net gain in altitude of ~36m. I don't know how flat that is in ebike terms. Going east, there is one 17meter drop 1 km long and following that is a steady 40 meter incline about 4 km long and one more 20 meter incline about 1.5 km long. The rest is relatively flat and there are a little up and down hills but are small and uncountable. Coming back west is obviously the opposite.

I would like to build this as soon as possible and can't wait on the 5-6 weeks shipping time from China. I found that the Golden Motor dealer in Toronto has Magic Pie motors and decided to do a bit of research on them. I searched on the forums here and no where I found anyone trying to run this motor at max 30mph (they are all 70+ volts 40mph). The speed I'd like to achieve is preferably 30mph and I don't care for anything faster than that at the moment. I am quite unsure of what this motor would run like at 48 volts as some say 20mph, 25mph and 30mph..... nolah

Battery:
Due to the budget limitations, I am leaning towards purchasing the 48V10Ah Lifepo4 battery from Golden Motors Can ($499 + tax) the 15Ah is $649 + tax. The continuous cell C rating on this battery I believe is 3C, max is 5C and I don't know what the BMS can handle. If anyone has batteries to sell locally that complements my build please say so.

I also found these power tools battery packs from my local homedepot: they are 2 pack 20 volt 4Ah $149 http://www.homedepot.ca/product/20-volt-max-40-ah-premium-xr-lithium-ion-2-pack/857997
and I believe these are the same but cheaper $128: http://www.lowes.ca/cordless-tool-batteries-chargers/dewalt-20v-lithium-cordless-tool-battery-2-pack_10613290.html
and there is also this Ego 56v 4ah $219: http://www.homedepot.ca/product/56-volt-40-ah-battery/865145

I don't know any of the C rating on those packs but I heard dewalt packs are A123 cells. If these packs are a good option I'd still have to get a BMS and Charger at extra cost.

Another local dealer (ebikes.ca) has Crystalyte and 9C motors in stock. Their lifepo4 batteries are a bit pricey though.

I really don't know how these motors compare; the magic pie 3, 9c and crystalyte (a little more cash).

As for the controller I, am also unsure of what I should get. The Magic Pie 3's built in controller, I read, is holding back the motor's potential. In other words, it's weak.

I first wanted to build on a road bike (700c) but later acknowledged that most of you use 26" mountain bikes due to the suspension. My bike budget is about $200 + tax.

If this build is do-able please let me know. What is your opinion on the 48v10ah battery and it's range? And which motor is best for my situation along with which controller? And on last thing, Golden Motor has a new kit called Black Magic, it claims to max out at 44kph on 48 volts. An opinions?

Those articles in lowes.ca, are still available ?