front wheel spacer issue

[paso750]

Hi,

as I wrote in another thread I have a problem assembling the front end of my bike.
According to the parts catalogue there are 2 spacers at the front wheel. One on the right side and one at the speedometer drive.
What outer diameter and exact width are these ?
If anyone has the front wheel removed, could you check ?

thx,

G.

[Desmo_Demon]

Here are the measurements I got with a metric ruler...

17.5mm ID x 26mm OD x 2mm

with a micrometer, I got this...

0.678" ID x 1.012" OD x 0.077" thickness

Both of my bikes only have one spacer on the right side. Neither has one on the speedo side.

[paso750]

thanks very much. Strange that the manual shows one per side.
I saw an old 851 yesterday and that one had a spacer per side also.
I still wonder why there is a spacer on the right side as they only had to make the axle some milimeters longer. Only guess I have is that the threaded part shouldn`t stick out on the left fork side.

G.

[paso750]

Terry,
did you actually remove the axle to check ? Just wondering if the "spacer" on the speedometer drive side could be a shim which is hard to see with the wheel still in place.

[Desmo_Demon]

did you actually remove the axle to check ? Just wondering if the "spacer" on the speedometer drive side could be a shim which is hard to see with the wheel still in place.

Johnnie asked me the same question aboput washer dimensions a couple of months ago and I still had the response from when I PMed the info to him. I used a caliper on the washer. If there is supposed to be a spacer on the speedo drive side, neither of my bikes had them.......By any chance is that "spacer" in the schematic actually a bushing for the speedo drive unit to take the ID from 20mm to 17mm? I broke the tab on my speedo drive unit on the way home from work two days ago and I was cleaning up a spare that I have and saw a bushing as a reducer for the ID. Chances are, I will be removing the front wheel this weekend to change the drive unit and can double-check everything.