I want an E-Bike but less time than $ whos building/selling?

[dogman dan]

Might look for a used stealth bomber for a big motor ebike. Budget not enough for the real deal though, as has been pointed out.

Or plead for somebody to sell you their cromotor bike, which has a similarly oversize hubmotor. It won't be $2500.

 

[John in CR]

Dogman,

He wants a complete bike, and what I offered delivery of isn't some hacked together ebike starting from an existing bike frame like those I ride, and he'd have some design input if he wants.

After thinking about it, since he's not a big guy wanting to pull heavy loads, and he lives in an area with almost nothing in the way of hills, I can also deliver an ebike that looks more like a common pedal bike with a hubmotor with spokes that has wheel with an OD equal to a 20" or 24" bike wheel. Either will be capable of over 50mph. The difference is that these wouldn't be quite as zippy as the smaller wheel bike, would require 10-20% more battery capacity for the same range, and wouldn't have the same ease of hiding the extra battery needed for long range. It would open the door for some other design options including a more broadly useful cargo type frame, which with the smaller wheel means it could be passenger capable. I only have 2 of those motors left and can't easily or economically get more, and I had them slated for my own 2wd cargo bike build capable of 70mph, so I'd want $250 more to use one of them.

John

 

[dogman dan]

I should have read your post more completely. I was skimming some others and hopped right over your offer.

So I was thinking your scooter hubmotor or one like it, with a swingarm built by his buddy that welds. For sure, what he wants is tough to do with a typical motor as the starting point. How to carry that much battery is the REAL problem with 50 mph for much more than 20 miles.

Hit's 50 but will cruise at 30 is doable on cheap stuff. In a way, he wants a Zero motorcycle performance on a motor kit price.

I still think he'll have trouble with the cops in florida, unless he's in the sticks someplace.

 

[kentlim26]

My Conhis 48v 1000watts will gives 35mph, 55km/h ~ 58km/h at 60v controller, i think is sure good enough. TrY this first before making a BIG jump over a 50miles per hour., When a EBike , those common hubmotors ones going at a speed above then that 60km/h , you will think twice going much faster Or not. At that speed above 60km/h + ebike will see unstable at front and i got the feeling im like running a single rear wheel , and the front wheel is Tip-toe running. I slow down my thoughts of buying a HS4080. I don't like wheelie, though.

ken

 

[Brinley]

Funny, I've been checking back on this all day, planning to read anything and respond only to think, "damn, no one responded. Well, maybe people just aren't that interested in this thread. "

Didn't notice my last post was at the end of page one and there was a page two :lol:

Okay, going to read all the posts now and see. Thanks for the interest guys, I really appreciate all this input. This community is extremely creative and thriving. Really well done on what you do, as you make this forum what it is.

 

[cal3thousand]

You want an e-moto.

Get the tax credits = about your price range and requirements. e-bikes have the advantage of being able to be called a bike, but adding those other cost and distance/speed requirements and it gets costly.

Let the government help pay for part of it

 

[jasonf150]

Just for some perspective. My total cost was around $2250.

Brand new Specialized Hardrock 29" disc brakes ~$550
motor kit from ebikes.ca (highly recommended by me and others) - $815
- HS3540 hub motor, laced into 29" rim ($90 extra)
- kit included cycle analyst, throttle and controller
- upgraded controller to 40a one. - $25
- torque arm - $45
- 11 tooth freewheel - $26

LiFePo4 Triangle battery from http://www.emissions-free.com/ (another highly recommended vendor)
52v 9.2ah -- I wanted the 11.5ah but it wouldn't fit the 17" bike frame. Should fit in a 19", definitely will fit in larger ones.
$800

(all prices include shipping)

real life stats
top speed is about 38mph, motor only.
range in the city, with stops and plenty of times where i need to slow down - 12 miles
if I were to keep the avg speed closer to 23mph-25mph, I could get closer to 20 miles per charge.
if I were to stay around 15mph-20mph, I could get probably 30-40 miles per charge (untested estimation).

I only reach >35mph in certain spots. Like others have said, bikes aren't really designed for that speed.

Things of note:
- I got my bike in April, motorized it in May, and here in September I need new tires.
- Also, plan on doing tuneups pretty often.

 

[e-beach]

Okay, going to read all the posts now and see. Thanks for the interest guys, I really appreciate all this input. This community is extremely creative and thriving. Really well done on what you do, as you make this forum what it is.

And thank you for your thank you!

 

[d8veh]

There's a guy in the UK who builds these at £4000 a pop. Top sped is 38mph. If someone buit the same in USA it would be about $4000 - $4500.
http://www.xipi.co.uk/Ghost.html