The current trads pricelist refers to several wheel/tyre options for the Plus 4
Three of which are the 4/4 wheels, but shod with slightly wider tyres (185 instead of the 4/4's 165 mm).
The cost-option to click to gain a "narrow bodied" Plus 4 is "high speed tyres".
Hope that helps?!
2015 Roadster 3.7
