Saturday, November 30, 2013

I'm looking for a CVT or IVT transmission for a diy electric bicycle?

best electric bicycle kit on An Inexpensive Electric Bike Conversion Kit - MetaEfficient
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Joel


I'm planning out a DIY electric bike, and I want to use a direct drive system. I'm thinking about using a couple angle grinder gear boxes instead of chains and gears, but I need a CVT or IVT transmission. That's Continuous Variable Transmission or Infinite Variable Transmission.
It would be great if there is a power tool or some other low-cost component I could dismantle to easily get one of these transmissions. Go Karts use them, and they are cheaper than I would spend at a bike shop, but they're built really beefy for the kind of strain a Go Kart motor would put on it. Does anyone have a suggestion?



Answer
i have built my own elec bicycle .. i used a " hub motor bicycle kit . total cost of $230 for the kit including charger . throttle , and controller box Then you have to buy the batteries separate or you can buy " chain driven elec bicycle kits " you dont need transmissions using DC elec motors because they ae Variable speed motors . the " throttle " controls the speed. The higher the voltage of system the faster it will go. mine is 36 volt. 500 watt. with 6 - 12 volt 12 amp hour batts to make 2 -36 volt battery banks. next time i will try a 48 volt 1000 kit.

also google " electric bicycle youtube " and " elec bike forums " to learn more. Hub motors are much more efficient and quiter too. .

Information on purchasing an electric bicycle?




Joyce Z


I'm thinking of getting an electric bicycle (to save on fuel costs)--does anyone have any personal information on electric bikes or recommendations on which brand?
Would also like to hear good/bad experiences any of you have had and especially what to avoid when purchasing one.
Thanks



Answer
Congratulations on considering your ebike purchase. It is one of the best transportation decisions you can make; you will be healthier and have more money in your pocket.

A recent case study:
An 8 mile commute to work, for a employee..desk job,. works out at the gym twice weekly.

has stoplights, hilly terrain. usually picks up odds and ends at store on way home from work.

fairly dry climate, 6 month fairly comfy riding season; mornings 45F or better, afternoons seldom above 90F, usually mid 80's.

married, 1 child, two car family. : Driving in town 9000 miles per year on car #2. Going to cut that in half --down by 4500 miles --- most trips under 10 miles each way.

Car averages about 15 mpg in town so that is an even 300 gallons of gas, figure 3.50/gal... $1050.

not taking the car to work much any more, will save about $100 for six months insurance.

that's $1150. plus an oil change or two,. for $1200.. maybe a little more. Also looses about 5 pounds per month.

what can one getfor that?
You can get a top rated ebike kit a Bionx 350 w 36v NIMH kit for $1200!
A Bionx NIMH 36v 350w Ebike kit, judged one of the Best in the USA, to go on Your bike for $100 labor, or do the work yourself and save the$100.

http://www.birdrv.com/bionx-p350-electric-bicycle-kit.php
Dealer in Denver with service, parts, test rides, outstanding support.

Ok another well rated Ebike is the EZEE brand, Try Seattle or Oceanside:
http://www.electricvehiclesnw.com/main/contact.htm Cost a little more, but comes on a bike.

I support both of these and they are great in all respects.

East coast-- another good guy:
http://nycewheels.com/

What are the horror stories I hear:

People that dont respect that these are Electric ASSIST bicyles and require you to pedal (but not hard), they treat them like mopeds, and they dont last. (however there are many people that understand that these are e-assist bikes and get 8 + years out of them)

People that overestimate their mechanical ability and try to install complicated kits themselve- yet they could not change a tire.

People that get scammed on ebay by trying to get a bargain on something they know little about.

So good luck. If you do your research, honest about your needs, get references about the bike and the dealer before you buy, you will be happy.


there will be an ebike race In Portland OR. at the end of May. Email me for more info.




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Title Post: I'm looking for a CVT or IVT transmission for a diy electric bicycle?
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