Vintage Dirt Bike Q & A

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PostPosted: Fri Dec 01, 2017 8:00 am 
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Joined: Sat Jun 27, 2015 6:54 am
Posts: 10
Does anyone have a source for the RH main shaft needle bearing 91020430008? 78-80 CR250. 81-84 ATC 250r. CR480.
I see Boss Bearing has one that they call "aftermarket". Would like to find a quality bearing if possible. Koyo, NTN.
Thanks, Brad


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PostPosted: Fri Dec 01, 2017 4:07 pm 
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Joined: Sat Jun 03, 2017 1:39 pm
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Location: London , England
Pretty sure the same bearing is used in some Yamaha’s part# 93311-42045


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PostPosted: Sun Dec 03, 2017 9:07 am 
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Joined: Sat Jun 27, 2015 6:54 am
Posts: 10
Thanks for the tip! I looked that part# up and it is indeed a 20x33x15 koyo needle bearing. Gonna order a few. Thanks, Brad


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