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Only eight bolts fit sprocket!!


Discussion at Motorized Bicycle Engine Kit Forum in the Bicycle Engine Kits forum. I changed Bikes for my chinese kit and when I got to the rear sprocket only eight bolts line up ...
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Old 01-25-2008, 09:12 PM
Motorized Bicycle Builder
 
Join Date: Jan 2008
Location: alto michigan
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Default Only eight bolts fit sprocket!!

I changed Bikes for my chinese kit and when I got to the rear sprocket only eight bolts line up wirh the holes. On the ninth I get 2 spokes crossed almost smack dab in the middle of the last hole every time. I redid it three times and still cant get that last hole lined up to clear spokes.

I guess eight bolts are enough,when im going thirty you cant even see a bolt is missing.

Still kinda bugs me though. Anyone else have this kinda problem? Should be ok ya think?

Ted
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Old 01-25-2008, 10:09 PM
Andyinchville1's Avatar
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Default Re: Only eight bolts fit sprocket!!

Hi,

Yes it happens that way sometimes....if you can't adjust it until it just works, you may have to resort to the brute force approach and move the sprocket until an interference fit on some of the spokes happens and then sometimes you can just get the 9th one in.....barring getting lucky that way, I have sometimes loosened spokes until I got the bolt through and then re-tightened them to ensure a true wheel....that takes a little doing sometimes....it will eventually work tho.
Hope this helps.
Andrew
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Old 01-25-2008, 10:15 PM
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Default Re: Only eight bolts fit sprocket!!

i had that problem with the 5 hole sproket but the 9 hole went on like a dream. i had to really move the sproket around to get all bolts thru then had someone else hold it center till i got the bolts somewhat tight to keep it from moving then finished tighning up the screws and bolts.
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Old 01-25-2008, 10:43 PM
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Default Re: Only eight bolts fit sprocket!!

Hi, some of the vendors use 8mm bolts to hold on the sprocket, some use 6mm, on some custom builds I used 10-32's.

The 8mm's are a real pain, and I think inapproiate.


Mike
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