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06-30-2014 01:23 AM  6 years ago
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wild bill 03

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california

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Motorized Bicycle Racing
A little over a year ago I built 3 motorized bicycles. After I finished the first one I found out they actually race them in a series in So. Cal. so I built a couple more and my Son and I started racing. Heres some pics of them, the fastest one will hit 53 MPH although the track isn't big enuff to hit anything over 45MPH. We race on Go Kart tracks at Willow Springs and a track in Apple Valley called the grange. Here is a clip of my first time out, I was in second place until the front wheel locked up on hard braking going into a turn...

Watch at YouTube

The first one uses a KTM 50 engine and the rules don't allow transmissions so the engine power goes thru a jackshaft and the bikes rear derailleur giving it 8 gears. It also has front and rear suspension and disc brakes.


The next one is the one I gave to my Son, it uses the standard bicycle kit engine and the same 8 speed setup as the first bike, it will hit 40MPH.

The last one is the one that I built out of a 20" Mongoose BMX bike and it hits 45MPH.



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06-30-2014 02:00 AM  6 years ago
Blax1

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Sydney Australia

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Great post

Absolute weapons

Get some chain guards......................Please!
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06-30-2014 02:41 AM  6 years ago
Gearhead

rrMaster

Vt

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that's pretty cool,, good wipe outJim
Buzz Buzz Buzz
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06-30-2014 03:50 PM  6 years ago
P.I.Engineer

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Kent, WA

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Grange still slippery? I high sided my super moto through that tire wall a few years ago.
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07-01-2014 02:55 AM  6 years ago
wild bill 03

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california

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The Grange isn't too bad until someone cuts a corner and roosts some sand into the line.
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