XJ900F inner tubes

I need to get inner tubes for my XJ900F, 100/90-18 front and 120/90-18 back, the tubes I have seen for sale have sizes like 225/250-18. I don't know which ones to get, can anybody help?

 

bttt

 

PM chacal, he might have what your looking for or know what your after and where to get it

 

For the most part, tube specs seem to be in inches rather than the metric specs usually used for tires.

From THESE charts you can look up the inch equivalents for your tires.

So, your front tire would be a 3.25/3.50 18 and the rear would be 4.50/4.75 18.

Now tubes fit a variety of sizes of tires. What you need to do is find a tube that covers the inch range of the tire.

For instance, my tube supplier carries a 325/350-18 tube so I would use that on the front.

They do not offer a 450/475-18 tube though. I would use their 450/510-18 tube because it covers the whole inch range of the tire.

 

Cheers, Just what I needed