Email your dealer a picture of your current flyer and your wheel type so they can confirm the size (4, 8, 16, 32, 64) of flyer arms you need to order to update your wheel. 

When you receive your new flyer arms, remove the old arms from your flyer by unscrewing the two screws in the back of the flyer (one screw per arm), and attach the new arms when they arrive with one screw each and you'll be ready to spin. When you need to replace a peg in the future, simply unscrew the peg from the bottom of the flyer and replace it with a new peg.