If you're mechanically inclined, you can install the gears yourself. I'm not quite sure why there is this mystic about gear installations being too difficult for the average guy to install. Is it because it requires more than unbolting and bolting on a new part? Not a good reason. There are many writeups on the net with pics that take you step by step thru the installation process. I would rather spend the money on the tools to do the job (less than the labor you'd pay someone to install them) and be armed with the knowledge to install the next set. So, are we lazy or just stupid?