Topic: tire size on 81 CB650

[ThomasJ]

I have a 81 CB650 and I need to get some new tires for it. The tires on it now are 120/90-17 rear and 3.25H19 front. My question is on the front tire. Would I replace the 3.25H19 with a 90/90-19 or a 100/90-19? 

Thanks

[SteveD CB500F]

The straightforward answer is that 3.25 inches = 82.6 mm so the 90/90 is a staright swap.

[cb650]

I run 100/90 on mine. A 110/90 is too much.  Is your bike a standard?  Always thought from your pic it was a custom.



                  Terry

[ThomasJ]

Mine is a standard. I think the customs mag wheels are a little wider.