This article is from the VW Technical FAQ, by with numerous contributions by Jan Vandenbrande others.
A: According to Peter Tong:
There are 4 sizes. 190mm early gas rabbit (A1s), 200mm diesel rabbits,
210 mm 83-84 GTI, 85-92 G/J/ (A2s). I think Sachs also sells a 215mm clutch
kit as well - aftermarket.
Many clutches in these sizes come for road and racing applications.
You can also combine clutch discs with different strength pressure plates
as well. 16V clutch is similar but has provision for the AGB tranny's
larger input shaft.
See also the performance FAQ on sport clutches.
 
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