Hello Nulli, What size rims do you use, They look like WM3 ? . I have 100/90/19 on the front, And 110/90/18 on the back, WM2 rim/f, WM3 rim/rear, I find the steering a bit slow, I was thinking of 90/90 on the front ?, But I am not as Brave as you !!, Cheers Bill.