riser

I am looking to put a handle bar riser block on my 2008 arctic cat f5. I have been told that i can get a 4in block in it? Is that right?

i have a project to do for my plumbing class. Ive been given a plan . There is one room dividedtwo restrooms, a womens and a mens, side by side with the womens havign 4 water closets and 3 lavatories and the mens having 2 water closets, 2 urinals and 3 lavatories. At the entrance of the room...

My friends want me to try vert and i would rather not buy brand new trucks just to get more height from my wheels to board.