Heavy and Extra Heavy bar end weights for Suzuki range from 12.9 ounces each to 17+ ounces. Extra Heavy not available for all models. Base Price is $82 (Powder Coating is Extra) Available in stainless or black.
Had these installed on my GSX-R750. Made all the difference when I was going on longer rides. Still get the occasional numbness from the riding position but the vibrations in the handlebars is near gone.