Ok, so I am thinking of getting a set for my bike to give some more hand placement options. My bike is a GT Timberline ('04). I was thinking of getting theses:

http://www.performancebike.com/shop/...e.cfm?SKU=2027

Anyone know anything about these? do they just clamp over my existing bars?

FYI, if the link does not work, they are Performance Forte OS Bar Ends