another #%$%&&&$??bolt question

[xschop]

Does anyone know for sure the correct thread size for the rear wheel axle? I don't have an extra one lying around to measure it either....thanks ....chop

[TopCatGr58]

Hey Chop,

According to my micrometer, it's about 17.75mm diameter which should make it an 18mm. It has a 1.5mm thread pitch.

I have some 20mm x 1.5mmpitch threaded rod, and it's about 19.75mm diam!

The castle nut for it is the same as for the XS650:

650 90171-18008-00 NUT, CASTLE (256-25382-00)

XS11 90171-18008-00 NUT, CASTLE (256-25382-00)

Regrettably, the Yamaha site didn't state the actual size!?
Hope this helps!
T.C.

[xschop]

thank you t.c.

did you use a thread pitch scale? I am getting some titanium castle nuts ordered and wanted to be sure....thanks again...chop

[TopCatGr58]

Hey Chop,

I took my 1.5mm pitch threaded rod and held it next to the spare axle I had, and the threads meshed perfectly! I know my threaded rod is 1.5mm, it's the same pitch as the oil filter bolt, I had to determine that in finding suitable threaded rod to make the supply tubes for my S.O.F.A.s, so I'm very sure that the axle is the exact same pitch.
T.C.

[xschop]

muchos gracias

thanks(english). I am getting a front and rear nut in titanium, believe it or not, it is cheaper than trying to get the stainless ones, and they polish out just about the same....thanks again