| The part number of the rear wheel rim on both the S and R model is the same - 502.1.022.1AA - for MY2000 and MY2001.
There isn't a parts manual for the 998R online, but the 996R uses the same wheel as the S and R model.
The part number changes to 502.1.023.1AA for a MY2003 748R, but there's no indication in the manual whether this is a different wheel type (ie, special / lighter) or just a superceeded part.
So unless you have a MY2003 748R you've got the same wheels as an S model.
Anyone got a part number for the 998R or can look up the difference between the MY2002 and MY2003 wheels? | 
antonye
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