Handlebar risers

[04sxviper]

Just wondering what is the max size riser I can put on my 04 viper s berfore changing anything.

 

[ryanryan]

I put a 2" on and everything is fine but I wouldn't want to go any bigger.

 

[Yamaouch08]

I had a 3.5 inch Rox Pivot riser on mine with out any problems. There are a couple threads on here about risers,heres one:
http://www.totallyamaha.net/forums/showthread.php?t=48681&highlight=risers+viper