Gents, my solution is an 180/60/zr16 bridgestone g704 with altered driveline. 5mm distance at the back end. In total 5mm at the front with an 851 sprocket (much thicker), see pics. First an alu plate for the exact offset and mounting with one bolt in the centre. Second plate has exactly enough room to fit over the head of the bolt. In other words: the 2nd plate slides over the head of the bolt. Finally fitted the two little bolts through the plates on the sprocket.
Léon

Hi, you`re better off replacing those toothed washers with normal ones and using Loctite instead.
Those things are ok for electrical connections but not for much else. Most of the toothed or spring washers will already be squashed at only 5% of the bolt`s preload force so they become ineffective long before the proper torque is reached.
Also it makes no sense putting them between a bolt and a washer.
Never mind, just want everyone to be and stay safe.

G.

PS: does the front sprocket still have play ? There should be about 0,3mm if my memory serves me well.

Tx for the reply. I used washers and loctite. You're right, I'll get those washers out. Furthermore, currently there is no axial play, cause its directly bolted on the axle. I could machine this with a small bushing that sticks out 0,3mm. Agree?
Léon

Hello Léon,

After reading your solution transfer to the 180 bridgestone. I have not replaced the tires on my '87 Paso before and am not quite following your process. It appears that you only posted pictures of the forward sprocket. It looks as if you put the 5mm spacer between the sprocket and the engine. Did you just put spacers between the rear sprocket and the wheel? I really appreciate any help you may offer as I am not a great mechanic. I'm more of a body guy.

Thanks

Below a couple of pictures of the current setup. As an extra 'ensurance' I've added a strip that will prevent losing the central bolt. The rear sprocket is offset as I used an old alu sprocket and turned it down on a lathe.

and a quick drawing of the current setup.

Thanks Leon,

I appreciate the drawings. A picture worth a lot, etc. Any suggestions on where to get the two sprockets?

Thanks for everything. I feel like I can do this properly now.

Jeffreyt
Needham, MA

No problem

Maybe this will help:

front sprocket


rear sprocket