What are the different tire sizes that I can run on the stock wheel/rim?

My manual says 4.60-18 ( plus this is the size that came on the bike)while my brochure from the dealer says 100/100-18. I noticed in a picture from NoBrakes that he is running a 120/100-18.

What numbers mean what? I know the 18 is the wheel diameter.

I have been thinking that my tire choices were very limited.

 

The metric sizing, i.e., 120/100 means 120 mm wide, and the height is 100% the width, so in this case it is also 12cm. A 100/100 tire would be 10cm wide and the height is 100% of 10cm which is 10cm. A 4.6 inch tire would be somewhere between a 110 and 120 (I think).

 

Spot on Brian 4.6 inch [international, U.S.] = 11.684 centimeter

 

I always remember 25 mm is approximately 1". Comes in handy a lot.

 

I don't bother remembering ...... it's on the net lol

 

whats a quater pounder in france?

Just watched Pulp Fiction.... lol

 

Here's a dandy little link to a Metric to Imperial measurement calculator.

 

25.4 mm = 1"

 

come on now guys were not talking about our "manhood" sizes now.... keep on topic.... lol... i just had to.... j/k..