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| Motorized Bicycle General Discussion Topics on bicycle engine kits, help articles, repair and modifications for your motorized bicycles |
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11-18-2008, 12:36 PM
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Motorized Bicycle Member
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Join Date: Oct 2008
Location: San Clemente, Ca.
Posts: 23
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what size is the Stock Chain?
What size is the stock chain? I cant find that info anywhere. I lost my master link on a dark streetcorner and need to find a replacement  . Ive got the 70cc china girl.
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11-18-2008, 01:09 PM
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Motorized Bicycle Elite Member
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Join Date: Jun 2008
Location: Longmont, CO
Posts: 1,596
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Re: what size is the Stock Chain?
I believe it's a 415. Don't quote me on that though.,
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11-18-2008, 01:52 PM
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Master Bike Builder & Forum Sponsor
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Join Date: Dec 2007
Location: Duvall, WA PNW
Posts: 3,291
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Re: what size is the Stock Chain?
You are correct. It's 415
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11-18-2008, 02:08 PM
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Motorized Bicycle Member
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Join Date: Oct 2008
Location: San Clemente, Ca.
Posts: 23
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Re: what size is the Stock Chain?
Thank you. But that brings a new question. why have I heard of guys upgrading to a 415 chain. or that they are expensive? or that they need to grind the front sproket to make it fit? I'm confused.
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11-18-2008, 02:11 PM
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Motorized Bicycle Elite Member
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Join Date: Jun 2008
Location: memphis tn
Posts: 909
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Re: what size is the Stock Chain?
the 415 chain is the stock chain, most people get a 41 chain as a replacement. It also is a better quality chain too.
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11-18-2008, 03:03 PM
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Motorized Bicycle Member
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Join Date: Oct 2008
Location: San Clemente, Ca.
Posts: 23
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Re: what size is the Stock Chain?
Thanx guys
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11-18-2008, 03:15 PM
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Custom MB Buiilder
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Join Date: May 2008
Location: Houston, Texas
Posts: 1,267
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Re: what size is the Stock Chain?
If you put an American, or other chain up with the stock chain you will know. I keep the chain that comes with the kits in case it's sunday and I break one, very unlikely.
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11-18-2008, 05:02 PM
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Godfather of Motorized Bicycles
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Join Date: Jan 2008
Location: Ashtabula county, Ohio
Posts: 10,864
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Re: what size is the Stock Chain?
The "sloppiness" of the stock chain helps with any mis-alignment.
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If it ain't broke, and you mess with it long enough, it will be.
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11-18-2008, 05:20 PM
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Banned
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Join Date: Sep 2008
Location: Clearwater, FL
Posts: 1,727
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Re: what size is the Stock Chain?
My latest bike build is the GT "deuce"
I was wondering if anyone has used bike chain?
Did it stretch or break?
I would think that if the sprockets were modified you could use regular bike chain. It should be able to handle the horsepower.
The rear tire and fender are wide on this bike, I need more clearance without making major modifications.
Jim
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11-19-2008, 03:30 AM
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Motorized Bicycle Senior Technologist
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Join Date: Jul 2008
Location: Asia
Posts: 415
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Re: what size is the Stock Chain?
Quote:
Originally Posted by Creative Engineering
My latest bike build is the GT "deuce"
I was wondering if anyone has used bike chain?
Did it stretch or break?
I would think that if the sprockets were modified you could use regular bike chain. It should be able to handle the horsepower.
The rear tire and fender are wide on this bike, I need more clearance without making major modifications.
Jim
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I'm using BMX YBN 1/2-1/8 half links. It's definitely a lot lighter, and I think even more durable. It broke my motorcycle chain breakers. Toughest chain I have encountered. 
It has'nt break, and I don't think it stretches that much...
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