propeller for your bike

i can think of a lot of other things to spend $900 to $2K on, i like to get some exercise on my bike FWIW, if i wanna not get exercise i would get a motercycle or scooter, i do suppose it would be neat though, i wonder if they are legal to use with no ramifications (ie on a bike since its now moter powered do ya need registration/insurance/etc)
 
I saw these on one of the tech shows last year; they can be used by rollerbladers and such too.
Looks qar-on-teeed to PO your neighbors.....
 
i do suppose it would be neat though, i wonder if they are legal to use with no ramifications (ie on a bike since its now moter powered do ya need registration/insurance/etc)
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This really is reinventing the wheel, pun intended. There have been a number of previous attempts to create bicycles that give the user the option between motor or pedal power. One stands out, I'm pretty sure it's called a moped. There have been more bike oriented designs as well, which included the use of small electric or gas powered motors on bike frames. Both seem a little more practical than lugging a giant fan around on your back.
 
IMO, a propeller for a bike defeats the purpose of having a bike that you are supposed to pedal. Why not save the 2k and get a moped?????
 
One of the local shops is selling a couple of different models of more-or-less normal bicycles with a little 2-stroke motor fitted.
One has a cute little gas tank on the top frame tube, and the drive is through a sprocket on the left side of the rear wheel, with a centrifugal clutch. On the other side is a conventional cassette/derailleur arrangement.

I was doing some research on these things, and one firm was marketing a setup to let you use a weed-whacker engine. The kit included a centrifugal clutch that replaced the drive end of the motor, and a rear wheel with a motorcycle-type sprocket replacing the lowest gear on the cassette.

Considering the torque available from a weed-whacker, I wouldn't expect blinding accelleration.
 
Hi All-
mwerner said:
"...Considering the torque available from a weed-whacker, I wouldn't expect blinding accelleration..."
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I'm not even so sure I'm expecting acceleration at all! :D My bicycles are going to continue to be quadricep-powered with a direct linkage to a Campagnolo drive system.

~ Blue Jays ~
 
Blue Jays said:
Hi All-I'm not even so sure I'm expecting acceleration at all! :D My bicycles are going to continue to be quadricep-powered with a direct linkage to a Campagnolo drive system.

~ Blue Jays ~
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i agree...both road bikes campag equipped....although had to settle for sram for the mtb :rolleyes:
 
As I recall, Campy tried to market an MTB gruppo, but sales were so poor in relation to Shimano they gave up.

I have no complaint at all with the Shimano stuff; even the low-end bits work admirably well, and the top-of-the line pieces are superb.
My police bike is straight LX, hubs, brakes, DRs, etc. Still going strong after about 10 years.
 
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