What are the steps to make an electric bike out of items that are not 100$?

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teal289

How do I make a motor for a electric bike what pieces do I need ?

Answer
To make a high-quality one that can go fairly fast, you probably couldn't.

On the other hand, if you don't want to go above 15-20mph, you could probably make one for under $100. Buy a cheap broken electric scooter. Chances are the motor on it still works and you can use that. Those motors can get you going close to 20mph with the right gear ratios.

A motor controller could also be obtained from a scooter, or, if the motor you are using is not significantly powerful (<36v), you could probably buy a brand new controller for fairly cheap.

Batteries may cost a little more, but you could get sealed lead acid batteries for under $100 for sure.

Plus, their are the little things like the throttle, which is generally a potentiometer. These can be very cheap on Ebay.

Electric bike- I want to buy one that is top quality and easy to use?

irunwithbu

Any suggestions on a great electric bike?
I want to get a bike that I can pedal and goes maybe 20 mph??

Answer
I bought one recently, but it wasn't top quality - actually it was the cheapest I could find. The E-Zip Mountain Trailz. It's actually pretty good, but the realistic range is only about 13 miles.

I've heard that Giant makes some really good ones:

http://nycewheels.com/giant-electric-bike.html

As does Currie Technologies. They make both the E-Zip (cheap version) and the i-Zip (higher quality).

http://www.currietech.com/html/07_ezip_main_prod.html
http://www.izipusa.com/

The main things you want to look at are range, battery type, and weight. Obviously lighter and longer range are better. Mine claims to go 15-22 miles/charge and only gets 13, so performance may not meet the claims. I think the range claims are based on biking pretty slowly.

Sealed lead acid batteries are the cheapest and most economical, but only last about a year. Bikes with NiMh batteries last about twice as long, but the battery costs about 3 times as much as a SLA battery. Lithium ion batteries are very expensive but last a very long time.

Good luck.

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What will happen to NASCAR when the air pollution activists get their way?

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uncleneal

It is coming... the environmentalists are going after NASCAR, Formula One, Grand Prix, and drag racing because they use a lot of fossil fuels and pollute the environment... what will happen to the sport if they place restrictions on air flow and fuel use?
I know some of you have answered that it doesn't use enough fuel, but some will argue that it does use too much fuel compared to average cars, and the amount of air pollution put out is not restricted in any way at all right now...

Answer
First of all, race cars cause little to no pollution, even on petrolium gasoline with alot of lead in it. There is a simple scientific explanation for this. The emissions from vehicles, industrial facilities etc., are infact the chemical components that do not get completely burned off in the prossesses. Because racing engines are more powerful than the rest, (even though the milleage is much worse because of this) they actually have a much more complete burn of the fuel, & the more the horsepower, the more this is true. Infact, some levels of petrolium gasoline burning race engines in Drag Racing (like in Pro Stock & Pro Modified for example) actually achieve complete burn of the gas, thus leaving zero emissions from thier exhaust. The Canadian federal government banned racing gas back in the '90's, but that didn't last long because they were wrong, & now we are allowed to use the high-lead racing gas here again. However, many Drag Racers who race in classes that do not have much restriction on what type of fuel you can use, actually are now using ethanol or methanol (both are types of alcohol) for thier fuel because it is only half the cost of the racing gas, runs cooler (meaning the engine temperatures are lower), & makes more horsepower than the petrolium gasoline does. I have been told that the gas is more consistant for indexed & bracket racing, but many people are opting for the alcohol due to the gas prices. There are a few classes where the petrolium gasoline is still required. These are Stock, Super Stock, Pro Stock, & some (if not all) of the classes in the NSCA-style "Fast Street Car Drag Racing" scene. That's mainly because the cars on the public roads are still mostly using conventional (tho now mostly unleaded) gas & these classes have to maintain a certain amount of similarity to what the public are driving. NASCAR is the same way. As for the Indy Cars, they have never, ever been forced to use alcohol for fuel. They have been running on alcohol for several decades now, by thier own choice, for some of the same reasons that kind of fuel is popular in Drag Racing (except for cost, as alcohol fuel used to be twice the price of racing gas at one time). There are alcohol-only classes in Drag Racing that have been around for several decades too. Top Fuel Dragsters run on rocket propellant-based fuel, believe it or not. As for the enviromentalist going after NASCAR etc., some of thes enviromentalists don't really know that much about the enviroment, & they can't force anyone to do anything anyways. Racing's sanctioning bodies (NASCAR, IRL, F1, NHRA, IHRA, etc.) are the governing bodies in racing, & the politicians can have some effect ofcourse, but they need to please as many of thier people as they can. Ofcourse facts are fact, tho sometimes facts can be ignored. I worry a little, as you never know what can happen. I worry about the future of antique & classic cars too. Will people still be able to restore cars to original & still be able to enjoy them in the future? Only time will tell. These cars too could also run on ethanol or methanol. All they need to do is use different materials for gaskets & fuel lines than the original materials. This does not visually look too different from the original look. They could change the jetting in the carburetors to run better on the alcohol, which is internal & does not effect the original look. The fuel lines could have a coating on the outside to look original. Sorry to get a little off topic there. Also of note, I have a buddy up here in Canada that races in NEDRA (National Electric Drag Racing Association) down in the states. This is not a scale model racing group. These folks actually drive full-sized electric cars, electric bikes, & electric-powered dragsters, competing in electric-powered Drag Racing events! Some people would like to have an excuse to put a stop to motorsports, especially Drag Racing, any excuse, just because they happen to be predjudice, or don't understand. I consider these people to have a serious lack of morals & I consider it as serious as racism. That is how I honestly feel. There are some people who believe that Drag Racing is sort of like "the sleeping giant of the sports, entertainment, & hobby industries", & it would not surprse me if someday in the future Drag Racing becomes bigger than soccer throughout the world. Supercharged Steve Currie, IHRA T/D # 3108

Where in Canada can I buy a 28 inch motorcycle rim?

Ian

I need a rim only and can have it shipped or I can buy it in Toronto (where I live)
nope, i mean 28 inch. I have an electric road bike and want to upgrade the wheel strength.
Cool, didnt know I was asking for something that rediculous lol. guess ill have to go with a really strong bike rim.

Answer
Motorcycle rim or bicycle rim? you noted electric road bike and the ones I've seen locally are large bicycles. As a bicycle rim- the 28 inch is available for 2.25/2.50 wide tires and a Raleigh(?) rim width shows as use able for a 3 inch commercial tire. Trek has a 28 inch on the 'large' adult cruiser cycles and three wheelers. check Raleigh dealer for that size 'postal/police' rim meant for the hard users, commercial rough road users. 36 spokes needed about 10 gauge? 40 spokes?
Huffy has 'large' rim 28 inch also with 40 spokes. Motorcycle rims with 28 inch -- now your talking pre WW2 antiques like Excelsiors and early Indians.

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