The International CBX Owners Association

Some times when I order CBX engine bearings, I get bearings for the CB750/900/1100 series of bikes. I understand that they will fit and work properly however, the 750/900 bearings are made differently, or of different metals, than the 1100 bearings.



As near as I can tell, original CBX bearings (XXXXX-422-XXX) are tha same as 750/900 (XXXXX-425-XXX). The 1100 bearings (XXXXX-413-XXX) are a Tri-metal bearing and the 750/900 bearings are a babbit bearing.



After talking to several people (racers), most prefer the 750/900 bearing saying it is more "forgiving" than the Tri-metal bearings.



I also have some bearings from XXXXX-300-XXX, which I do not know what model that is.



If you have additional knowledge about these bearings I would appreciate hearing from you. I need your opinions.



One last piece of info....the 1100f bearings are stamped on the back either F-77 or F-112 and the 750/900 have a series of number/letters.

Honda does not use different part numbers for no reason. Over the years of working at Honda dealerships I have found that IF is was possible, Honda would use a part from a 70cc step thru on a CBR600RR. If Honda changed the part number, there was a reason. You may be able the substitute, but really, Honda has a reason that they do not use the same parts numbers.



The 300 bearings, and all 300 parts were originally used on a 69- CB750K.

333 was CB350F

377 was CB400F

425 was CB750 twin cam and some CB900F.

422 is the 79-80 CBX

MA2 is 81-82 CBX



Honda part numbers are very easy to find your way around, unlike the rest of the automotive and cycle world.

Cheers,

Pete Aronson

Honda does not use different part numbers for no reason. Over the years of working at Honda dealerships I have found that IF is was possible, Honda would use a part from a 70cc step thru on a CBR600RR. If Honda changed the part number, there was a reason. You may be able the substitute, but really, Honda has a reason that they do not use the same parts numbers.



The 300 bearings, and all 300 parts were originally used on a 69- CB750K.

333 was CB350F

377 was CB400F

425 was CB750 twin cam and some CB900F.

422 is the 79-80 CBX

MA2 is 81-82 CBX



Honda part numbers are very easy to find your way around, unlike the rest of the automotive and cycle world.

Cheers,

Pete Aronson