Monday, May 26, 2014

Electric Bike?

Q. Hey I'm going to be moving a ways away from my kung fu school. So I will have to bike there but we are talking like 30 miles away at least. So my question is if anyone knows what that bike adapter kit is where it lets you switch between pedaling and driving?


Answer
there are allot of electric bikes and kits out there, but the problem is weight, performance, and distance per charge, remember, if you use those batteries for 10-20 Miles they are bone dry, and you have to pedal with an additional 80 pounds of weight, so you think, i ll add more batteries, but then you add more weight, then you need a bigger motor, so on and so forth, to have a more efficient setup you would need lighter batteries that last longer, lithium ion, or nickle metal hybrid, but they are very pricey, and you would need allot of them.

electric biking is not yet a transportation alternative, unless your going very short distance.

but if you wait, I'm currently working on a revolutionary concept for power assisted bicycles that will be available on the market for the summer of 2007 and will give you a 250 mile autonomy, and will only add 9.2lbs.

Electric motor for bike?

Q. I have a recumbent bike - E-Z Sport. I am looking for an electric motor for it - for a good price. The best I can find is an E4 for $700. Can anyone help me find a better deal? I love biking but have become disabled and need a motor in order to contine biking with family.
I can't use a moped on bike trails. I want to continue biking with my family on bike trails.


Answer
I assume your U.S. have a look at this kit. The motor is very efficient (>95%). This will give you the best range out of what ever batteries you choose.

http://www.cyclone-usa.com/store.php?crn=199
You can buy the kit or just the motor/gearbox.

Being a recumbent you should be able to mount the motor near your idler pulley and keep your original chainrings. The down side to this method will be that you need to pedal when the motor is on. Depending on your disability you may wish to go with the freewheeling chainring that they supply with the kit.

A front hub motor will not work so well on a recumbent (not enough weight on the wheel)




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