Yeah, I know. It has a 17T cog in the rear and there are several bigger ones available. I wouldn't want to change it too much, maybe to a 19. Not sure if that would require a new chain or if the rear axle can move far enough forward in the dropouts to accommodate it. I don't think I would mind the hit on the top end, since if I am topping out in 7th I am usually going downhill anyway.