I'm going to install a new chain and sprockets for next year, and I'm looking for suggestions about what size of sprockets to install. My Ninja 650 comes stock with 15 in front, and 46 at the rear. I currently have 14 in front, and 46 at the rear. I'm happy with the 14 on the front. I want to go bigger on the rear, but I'm not sure how big. I'm thinking at least 48. Has anyone else experimented with this? Is there a limit to how big I can go? Is 50 or 52 just ridiculous?