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               Originally Posted by 
              Gas_Up_Lets_Go  
              ^^^ �23.80 delivered.......
              
 I did consider buying patern bearings, but couldn't find the spec, could have saved myself �40 !!
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         One of those links is a Koyo bearing (the other I think was another Japanese brand, but I bet with a bit more digging you could find the Koyo one). I'd be almost certain that the OE ones are Koyo, the wheel bearings certainly are.
         
        
 So you're not buying a 'pattern' bearing. You're buying the same bearing, just not in a Yamaha box 
        
 
         
         TBH with any chassis/wheel bearings, if you buy something with the same code, making sure it's got the same seals if applicable, from *any* well known brand (SKF, FAG/INA, NTN, Koyo), it will be fine.