nope but your speedo will be off and it will look like a tractor.,
The overall diameter of the wheel could be reduced with some lower profile tires though surely?
As a side note, what offset do K11's have? is it the same as an N16 Almera? (just I can get some 16's for free thats all)
they should fit fine mate, as for tyres try blackcirlces.com and mytyres.co.uk