O-ring thickness

[frankd]

I need to change the O-rings that seal the Air Joints on top of the front forks. Does anybody have one that they could measure and tell me the thickness of the O-ring? I've got a metric O-ring assortment that has some that would be the right diameter, but before I take it apart, I'd like to make sure the ones in the kit aren't too thick. The Yamaha part number is 26H-23188-00-00.

 

Thanks,

 

Frank

Edited August 21, 2013 by frankd

[dingy]

I'll measure one when I get home in a couple of hours.

 

Gary

[dingy]

Frank,

 

Sorry, forgot to do this last night.

 

Thickness of o-ring is 2mm.

 

OD of inner tube is 40mm

 

I can't get a good measurement on the OD of the o-ring, but it appears to be about 43.5mm.

 

Gary

[frankd]

Gary,

 

No problem, the bike isn't apart. I thought I remembered them as being thinner than the ones in my metric O ring kit---the 40mm O rings in my kit are 3.5mm thick (cross section). Now I'll probably just order them from Yammie ($8/ea!!) to guarantee I'll have the correct ones when I change them.

 

I rebuilt the forks over the winter and didn't replace them. Now I've got a small air leak and I have to top off the front suspension every 2-3 days.

 

Thanks for measuring them!!

 

Frank

[Venturous Randy]

I did not have any air leaks, but going to Progressive springs solved any air issues as I don't run any air in the front now.

RandyA