Seeking advice on using an Alpina 19" front tubeless wheel and keeping the 18" rear. Any potential problems, handling and/or otherwise ? Do you need to shorten the sidestand ? Will the centre stand be OK ? The reason for the request on 19/18 info is from a cost POV and the fact in OZ you can import up to $1000 w/o duty wheras two wheels 19/17 would be way over that limit.