it's only the older ones. they are 1mm narrower and so you must fit a 1mm washer or you'll have an oil leek from the gearbox. also the husabergs are 3mm, teeth and 3mm (for 12mm). the husky is 1mm, teeth, 4mm so you get poor alignment.
Actually, early Husky front sprockets are equal both sides (and suit Berg >08) and the later (Husky, Cagiva made) model ones are offset as mentioned.
Regards
Sutto