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choneofakind · November 7th, 2015, 11:52 AM

The 300 uses the same size head bearings as the 250, no?

There were folks who swapped over USD forks/triples to 250's. I seem to remember that it only required sourcing bearings that fit, but I may be wrong. All bearing manufacturers/retailers should be able to size you some tapered rollers in various sizes.

You should be able to figure out what triples you want, then order bearings to fit based on OD and ID of the fits in question. Might even get lucky and find that bigger Kawi's with USD forks are using the same diameter bearing races, who knows?

Bearings manufacturers: Timken, FAG, SKF, etc. I know there's a convenient kit available from All Balls Racing (unknown manufacturer) for all generations of the 250, I'm not aware if that works on the 300 or not, but it would be a good place to start when referencing bearing race dimensions for other bikes as well and figuring out what triples to swap.

Anything will fit with some fab work and/or creativity, the trick is just making it work without as little hassle as possible.

November 7th, 2015, 11:52 AM	#174
choneofakind ninjette.org certified postwhore Name: . Location: . Join Date: Feb 2011 Motorcycle(s): . Posts: Too much. MOTM - Feb '13, Feb '14	The 300 uses the same size head bearings as the 250, no? There were folks who swapped over USD forks/triples to 250's. I seem to remember that it only required sourcing bearings that fit, but I may be wrong. All bearing manufacturers/retailers should be able to size you some tapered rollers in various sizes. You should be able to figure out what triples you want, then order bearings to fit based on OD and ID of the fits in question. Might even get lucky and find that bigger Kawi's with USD forks are using the same diameter bearing races, who knows? Bearings manufacturers: Timken, FAG, SKF, etc. I know there's a convenient kit available from All Balls Racing (unknown manufacturer) for all generations of the 250, I'm not aware if that works on the 300 or not, but it would be a good place to start when referencing bearing race dimensions for other bikes as well and figuring out what triples to swap. Anything will fit with some fab work and/or creativity, the trick is just making it work without as little hassle as possible.