I have them on my moto,without the bar weights and with the standard bars. No extra vibration apparent.
        
 
         They were on my moto when I bought it...to be honest I'd prefer bigger ones for extended road use to keep the wind/rain off my hands...not much protection for that sort of use compared to others I'd say. 
         
        
 I think off the road dot com maybe do a 'spoiler' to fit over these to make them bigger...must check and when I can be arsed.
         
        
 In an off road application they're fine...does what it says on the tin as it were.
         
         
        
 
 
       
         __________________
        
 The Suit:What would you consider to be your greatest weakness?
        
 Me: Honesty.
        
 The Suit: Honesty? I don't think honesty could be construed as a weakness.
        
 Me: I don't give a f**k what you think.
         
        
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