How could this be used?

u2seek42

New Member

Aug 1, 2010

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US

Nov 6, 2011

• #1

bicycle Motorized BIKE GAS ENGINE 4-stroke gear box | eBay

I see a roller where the gear is.

If this where made into a FD, what would it do, or not?

Thanks for any input.

 

wayne z

Active Member

Dec 5, 2010

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louisiana

Nov 6, 2011

• #2

Don't buy it if you want reliability or longivity. That drive is known to crap out at about 250 miles or so. #25 single row chain and thin castings just won't hold up to MB duty use.

Has a 3 to 1 ratio so it would take a very large roller to get fricton drive ratios right.

 

Ibedayank

New Member

Oct 29, 2011

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Columbia Tennessee

Nov 7, 2011

• #3

friction drive using a gear reduction case with a sprocket output... you must not like your tires very much. friction drives are direct drive off the motors crankshaft no need for a gearbox

 

wayne z

Active Member

Dec 5, 2010

1,743

5

38

louisiana

Nov 7, 2011

• #4

Not all fricton drives are crankshaft mounted.

TwoSpeedBike.AVI - YouTube

 

Ibedayank

New Member

Oct 29, 2011

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Columbia Tennessee

Nov 7, 2011

• #5

yeah and boygoslow is going to sell a 2 speed trans for under $60
even if it was made in china it would not be that cheap.....