Sprocket truth

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Re: Sprocket truth

Postby ricoyam » Tue Apr 07, 2015 7:55 pm

mcnut wrote:My '14 had a SuperSprox on it with Beta logos.


It could have been them too. I checked a half dozen or so manufacturers and was writing down numbers and bike apps looking for common threads.
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Re: Sprocket truth

Postby Enmerdeur » Tue Apr 07, 2015 8:26 pm

mcnut wrote:A Honda sprocket will NOT work. The I.D. is correct. The bolt pattern diameter is off by less than a mm. I check this myself with the OEM Beta sprocket off the hub and laid several brands of sprockets from my son's '12 450R Honda on the Beta's hub. Nope.


running a CRF sprocket on my 2014 300. Fits fine. Bolts a little snug but nothing drastic.
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Re: Sprocket truth

Postby mcnut » Wed Apr 08, 2015 6:10 am

I bet your holes aren't round anymore.
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Re: Sprocket truth

Postby mcnut » Wed Apr 08, 2015 9:19 am

Honda sprocket on a 2014 Beta hub.

Image
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Re: Sprocket truth

Postby mcnut » Wed Apr 08, 2015 9:40 am

All the bolts drop in but one. Then you have to force it a little.

Image
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Re: Sprocket truth

Postby Enmerdeur » Wed Apr 08, 2015 1:34 pm

mcnut wrote:I bet your holes aren't round anymore.


Why?
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Re: Sprocket truth

Postby Hammer » Wed Apr 08, 2015 4:46 pm

I have 200 hours on Honda sprockets with no issue.
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Re: Sprocket truth

Postby mcnut » Wed Apr 08, 2015 7:29 pm

Ok. Maybe a smidgen off is good enough.
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Re: Sprocket truth

Postby ricoyam » Wed Apr 08, 2015 9:21 pm

mcnut wrote:Ok. Maybe a smidgen off is good enough.


It may fit and it may be enough but I wouldn't call it good.

I would question why do it? Sprockets are available. Granted .5mm ain't much but the holes in the hub is going to be what takes up the difference.
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Re: Sprocket truth

Postby redrider » Thu Apr 09, 2015 4:56 am

I happened to have a 50T honda sprocket laying around and wanted to try it out on a new wheel I recently picked up. Had the same issue as in the previous picture except 2 bolts would fall unless forced. Measuring puts it about .3mm wider on the sprocket than the hub. Damn that's so close you have to wonder why the hell go out of your way to make them different. Nothing I couldn't touch up with a jewelers file on the diameter and a little on the bevel to remove any stress on the hub.

The Beta version sprocket seems to be more expensive (supersprox ) than others probably due to Beta is still new in the market. I'd have no worries using a Honda sprocket after a little touchup. Wouldn't force any mounting bolts though as you might be asking for trouble. Hubs are expensive. Soon enough we'll be able to buy all brands of sprocket for Beta. The bikes are as good as anything out there (as long as the Italian govt. doesn't get it's stinking fingers in the factory).
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