I repaled the front sprocket on my 93 GS500E. Should there be a shim or spacer in front of or behind the gear? There is a lot of space there.

http://cgi.stanford.edu/~sanjayd/gs500/Upgrades/Sprocket

Maybe yours needs a flange on the sprocket. Did the one you put on have a flange like the one for the 94-07 models in the above link?

No flange. Don't know if will hurt the bike to put a steel shim behind the sprocket.

Copied from earlier post of mine:

I ran three Sprocket Specialists 15T front sprockets for over 43k miles on my 97 GS.  Was getting DID chains from Chaparral and they carried the SS sprockets back then and SS supplied the same hubless sprocket for all GS500 bikes.  I called SS and they said that the hubless sprocket would follow the rear one located thru the chain.  I had no problem with them and every time I opened the front sprocket housing I found the SS hubless sprocket running right next to the retaining ring with the extra space behind.  BUT, first replacement sprocket I put on my 02 GS was run all winter once after a tire change with the rear wheel a bit out of line and that sprocket became quite wobbly on the shaft.  Fortunately the wear was in the sprocket bore and the shaft spline was OK but I have run only sprockets with a hub on my 02 since.  That's why I said it was OK as long as the rear wheel was properly aligned in post above.  I'd still run a hubless sprocket if I had too in a pinch but I'd watch the wheel alignment with it.  Your bike, your choice.

Putting a spacer behind the hubless sprocket might be helpful, don't see where it could hurt.  Hub goes inward so spacer would go behind.

If the bike has a sprocket with the extra hub, you sould get the same type.
The extra hub distributes the wear across twice as much of the shaft.

If you chose to put washers on a sprocket without the hub, they would go on the outside. The hub goes out so washers would go there as well.

Quote from: adidasguy on February 26, 2013, 11:10:15 AM
If the bike has a sprocket with the extra hub, you sould get the same type.
The extra hub distributes the wear across twice as much of the shaft.

If you chose to put washers on a sprocket without the hub, they would go on the outside. The hub goes out so washers would go there as well.

Hub goes inward so spacer would be placed behind the sprocket using hubless sprocket.

Guess so. Been a while since I've been in there.