funk Posted March 9, 2016 Share Posted March 9, 2016 A question, I know the odder is slightly different but will Cayman 981 wheels run ok on a 987 with no spacers Link to comment Share on other sites More sharing options...
DJMC Posted March 9, 2016 Share Posted March 9, 2016 Enter the details into this calculator to find out: http://www.willtheyfit.com By "odder" do you mean "offset"? The other most important thing to check out is your insurer's view of fitting wheels not to manufacturer's specifications. Do the calcs then OK the wheels with your insurers before you buy. I wanted to fit rear winter wheels with a 4mm offset difference and 10mm narrower tyres and it took a lot of arguing for SAGA to accept them, eventually. Link to comment Share on other sites More sharing options...
Founder Beanoir™ Posted March 10, 2016 Founder Share Posted March 10, 2016 Most 981 wheels have the same off-set, PCD and centre bore as the 987. See sizes below. 987 Gen 1 Cayman 987 Gen 2 Cayman 981Cayman Link to comment Share on other sites More sharing options...
DJMC Posted March 10, 2016 Share Posted March 10, 2016 @Beanoir aren't those you have listed just the fronts? It was the rears I had issues with. Perhaps a link to the site you got your info would suffice for the OP, unless you fancy doing the rears too, as above? Link to comment Share on other sites More sharing options...
Founder Beanoir™ Posted March 10, 2016 Founder Share Posted March 10, 2016 (edited) Correct, very minor difference in the rear off-set. Amended. Minor difference in off-set between the 2 cars, so with the 18" wheels, 4mm difference (inwards). Probably ok, but i'd check what your inner clearance is first, my preference would be to fit a 5mm spacer. Cayman 981 Cayman 987 Edited March 10, 2016 by Beanoir 1 Link to comment Share on other sites More sharing options...
DJMC Posted March 10, 2016 Share Posted March 10, 2016 The 10mm narrower (255) rears negated the spacer issue with the ones I was contemplating (CMS rims) which were 4mm inwards, as Nick says, but created another issue with the insurers. They eventually accepted narrower winter tyres are a good idea so went with both the different offset and tyre width. In the end I decided not to switch as the Nokian winter tyres already fitted to the used CMS rims weren't N marked, I'm not in Scotland, and the 18's in silver didn't appeal aesthetically. Link to comment Share on other sites More sharing options...
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