Hi Everyone, High Quality Chain today is sealed and packed in 120 link lengths so that you can size it to work with any gearing size you choose. If you have access to a dremel style grinder or an air grinder you will want to use it to break the old chain and to size the new chain.
There is also a great Diagram - Illustration description on the back of most all high quality chain boxes depicting how to loop and size the new chain once you have both sprockets mounted and rear wheel bolted into place.
I always mount my rear wheel at the center hatch mark on the swing arm so that the wheel can go as far forward, as back.
This is so that if I ever decide to swap gearing I can still use the same chain.
You will definitely want to save all extra links on your chain in case you ever have any future need for an emergency repair. This is where ordering one extra master link will come in very handy,
Set the slack on your chain at 1.5 inches minimum with a target of 1.75 inches at the middle of the lower run of chain between your two sprockets with your bike upright and no rider on it.
Enjoy the ride, and best regards,