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Pre-Motorized Bicycle Information. Before you mount that engine to your bicycle frame, you'll want to know if the bike is ready for the engine! Ask our experts here for advice on what will perform well.

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  #71  
Old 06-27-2012, 08:59 PM
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Dirt Road Cowboy Dirt Road Cowboy is offline
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Location: Tyler Texas
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Default Re: Bicycle review

I have a late 80's/early 90's Schwinn frontier mountain bike. It is very strong and durable, and will take anything that I have put it through.

I have a 4 stroke friction drive on it right now because I wasn't able to get the CG to run. The FD was no problem.

The China Girl engine mounted in it with no problem other than needing the larger front motor mount. The rear sprocket fit perfectly with no modifications.

Someday i may mess with the CG again, or just put it in a different bike.




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  #72  
Old 07-17-2012, 06:45 PM
FormerMPSGT FormerMPSGT is offline
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Default Re: Bicycle review

SCHWINN POINT BEACH: I put Heavy Duty Front & Rear Wheel with Drum Brakes on both; rear I only had a 6 Speed since it is a Sachs I couldnt switch the cassette from the Original so re adjusted the 7 Speed Shifter that came with the bike setting the 'Stops' as I call them and it works fine. I will put a Jack Shaft so I do not have to try to overcome the Large Drum Brake Hub which I couldnt figure out how to do anyways problem was I didnt know what the Jack Shafts were called only I knew the concept and kept trying til I found one. I want a better Gas Tank; a Wrap Around my frame larger capacity. I do not like the ones that come in a Kit and I wont be buying a Kit since I have done so much myself already I am hand picking my equipment as I do not like EXTRA's! Any Suggestions for the Gas Tank? What about a Lifan Engine; I live in Iowa and only 49cc Single Speed and I insist on a 4 Stroke any Suggestions? I am willing to spend the Money to avoid replacing the Cheap later! Thanks all!
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  #73  
Old 03-27-2013, 09:17 AM
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Dave31 Dave31 is offline
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Smile Re: Bicycle review

Bump

How about a review of your bike? What do you like about it? What don't you like about it? How difficult was it to motorize?
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  #74  
Old 01-16-2015, 03:07 AM
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boxcar boxcar is offline
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Default Re: Bicycle review

Centrix cruiser.
Don't know where it was built or who built it.
Not much info on the web about this brand. ( May be an Australian made bike )
I did read that somewhere.
Found the partial bike in a wrecking yard crush pile.
$2 bought it.
19" tig welded steel frame.
Nice big tubes / 3 piece steel crank / cable bungs in all the right places / 6 speed shifter with suntour derailers.
The only pic I have of the bike were all taken after I added the fenders , bars , seat , deore brakes and wheels.
It came with 1.95 white walls on single wall alloy rims. No fenders ,wide cruiser bars and a fat no name seat.
Was Red and white .





After some touch up paint:



The frame is strong and light for a seal frame.
Beautiful welds and nice finish.
The paint is a bit thin and scratches easily.

The conversion:

I used a 2014 short intake 66cc china girl kit with large tube mounts.
Fit the frame perfectly with no alterations.
The engine sits nice and low in the frame.
Rides very well, with good balance. ( as built )

As it was a basket case I have no opinion on how it rode stock.

This frame ( if you can find one ) is perfect for conversion to a MTB.
Everything just seems to fit .
Chain clears the frame with no need for a tensioner ( I run a spring tensioner any way ).
The 19" frame fits a 5'8" rider well but would seem small for taller riders...
As the bike was a bit stiff I did add a sutour suspension fork and a suspension seat post to the bike.
The stock fork was a very stout unit though.

The bike as it sat ( pre suspension fork )



Ater suspension:

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Last edited by boxcar; 01-27-2015 at 03:23 PM.
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