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  #1  
Old 12-22-2008, 02:19 AM
popp314 popp314 is offline
Motorized Bicycle Newbie
 
Join Date: Dec 2008
Location: hawaii
Posts: 5
Default New Guy question

Would a 24' bmx redline bike be ok to use? and what motor do you suggest, 50 or 80 motor?
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  #2  
Old 12-22-2008, 09:18 AM
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Bikeguy Joe Bikeguy Joe is offline
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Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,003
Default Re: New Guy question

Can you post a picture? You'll need 12+ inches from the bottom bracket to the top tube plus some room fore and aft...no rear suspension.

I would go for the 70cc, same size and weight , more torque.
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Old 12-22-2008, 10:39 AM
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Technocyclist Technocyclist is offline
Motorized Bicycle Senior Technologist
 
Join Date: Jul 2008
Location: Asia
Posts: 411
Default Re: New Guy question

If it's a steel frame, then it should be Ok. Avoid aluminum frames. I would suggest a pocketbike engine so it can fit inside the frame, however you'll need extra wide cranks. A rack mount would also be advisable for a small frame.

Welcome to this motoring thingy and enjoy the build as well as the ride...
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  #4  
Old 12-23-2008, 02:51 AM
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hiker472 hiker472 is offline
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Join Date: Nov 2008
Location: Ontonagon County,Upper Michigan
Posts: 623
Default Re: New Guy question

The 50 and the 80 are both the same size. The reason why Joe mentioned the "70" is because there is no such thing as an "80", but nevertheless, that's what everyone "sells" them as, when in reality the 80cc is actually 69cc.
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  #5  
Old 12-23-2008, 02:58 PM
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jasonh jasonh is offline
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Join Date: Jun 2008
Location: Longmont, CO
Posts: 1,596
Default Re: New Guy question

If it's anything like this bike

REDLINE | BMX RACING BIKES |

You're not gonna fit a motor in the frame. You can go rack mount though. There is someone here that put a souped up motor on the back of a bmx...
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