true that. if its been awhile since the spockets and chain have been replaced. spend the extra bit of money and get new everything.Just a little sprocket info... Every tooth on the front sprocket you add/subtract is equal to 2.6 teeth on the rear sprocket. IE if you go up one in the front it's the same as going down 2.6 in the back. Use the rear sprocket for fine tuning you desired gearing.It's always a good idea to replace both sprockets and your chain at the same time, otherwise you'll wear out all of those parts a lot faster.