why dont people utilize the speeds on a motorized speed bike?

GoldenMotor.com
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dirtrider5001

New Member
Oct 18, 2011
4
0
0
ohio
yes im new to this forum and new to building these bikes. I just dont understand why everyone puts on this extra sprocket to the rear or comes up with this seperate transmission.
I have been looking on and off into building one of these bikes. The title is my first question. my second question is which four stroke engine do i want to get money aside. Im thinking the robin subaru. Is the robin subaru the only japanese 4 stroke engine like this. I just refuse to put on a chinese engine..... thanks ahead of time
.xx.
 
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dirtrider5001

New Member
Oct 18, 2011
4
0
0
ohio
well after 10 minutes of looking seems like these subarus are hard to get. and im guessing this skyhawk four stroke is chinese. I think this is what put me soo off to this project in the past. Such a goosechase for a good engine something thats not chinese and something i can ride hard. please someone help me i really want to build something nice. I rememer talking to a kid on a bike with a skyhawk 2 stroke and the case(engine block) by the front mount was cracked
 
The_Aleman

The_Aleman

Active Member
Jul 31, 2008
2,653
4
38
el People's Republik de Kalifornistan
Welcome to the forum, Dirtrider.

Bicycle gears likely won't hold up to a Morini, and it really doesn't need em. They'll go 50+ with 1 gear.

Why not a Honda GXH50 and a shift kit? It's not as powerful, but it's been done successfully.
 
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gibster

New Member
Oct 19, 2011
5
0
0
Hemet ca
what about Honda four strokes? something like the GXH 50. to stay legal. or if youre a billy badass you can go with a go cart motor, Honda Horizontal OHV Engine — 340cc, GX Series, 11 hp enough power for anyone dnutdnut
 
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