I recommend the 22 rather than the fatty bar simply b/c the fatty bar is unnecessary and provides no real advantage plus it's usually more expensive. I think it won't fit on the stock hardware anyway (clamp). My 22 does not come into contact with the tank from full stop to full stop, however, I have a 2005 S2R 800 so maybe it's a bit different.
If i remember correctly, one does need to file down the little plastic bumps in the electric switches so that they fit flush on the bar since the Rizoma (and most if not all) aftermarket bars do not come with holes for the mirror mounts and switches and such.
It's pretty easy to install it. Just make sure you get new stock grips so you won't need to wrestle the existing ones off the stock bar which won't be that easy and use a torque wrench for the handlebar clamp bolts which should be about 20 Nm. Those should be correctly tightened for obvious reasons.
Monster S2R 800
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Last edited by FLYNLO; 11-01-2012 at 10:23 AM.