I use the Avons,
3.25 x 19 front
4.00 x 18 rear
run them at 27 front,and 32 rear,
they always feel great for me,last time I used Dunlops,but they didn't give me the same confidence,
don't fit over wide tyres,,3.25/90 front is wide enough,and 4,00/100 rear is bigger than standard,but work well