Well, I bought some inexpensive grips, and tried to install them. The left one went on without a hitch. The right one however, is still on there. It seems that the stock grip and throttle tube are molded the exact same way. Well, to avoid sanding it down and such, I want to just buy a new, smooth throttle tube. Does anyone know of a good replacement to buy, and how to get the existing one off? Thanks.