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　＼二つ

⠀⠀⠀⣿⣿⡆⠀⠀⢸⣷⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀⠀ ⢸⣿⡇⠀⠀⣾⣿⡆⠀
⠀⠀⠀⣿⣿⡇⠀⠀⢸⣿⢰⣿⡆⠀⣾⣿⡆⠀⣾⣷ ⣿⣿⡇⠀⠀⣿⣿⡇⠀
⠀⠀⠀⣿⣿⡇⠀⠀⢸⣿⠘⣿⣿⣤⣿⣿⣿⣤⣿⡇⢻⣿⡇⠀⠀⣿⣿⡇⠀
⠀⠀⠀⣿⣿⡇⠀⠀⢸⡿⠀⢹⣿⣿⣿⣿⣿⣿⣿⠁⢸⣿⣇⠀⢀⣿⣿⠇⠀
⠀⠀⠀⠙⢿⣷⣶⣶⡿⠁⠀⠈⣿⣿⠟⠀⣿⣿⠇⠀⠈⠻⣿⣶⣾⡿⠋⠀⠀

One way to maintain the life of your chain is to ensure it is the correct tightness. It will stretch over use, so you need to ensure it doesn’t get too loose. Your owner’s manual will give you the specific specifications for slack, but basically you’re looking at how far the chain flexes when you pull the slack out of it. If it’s too loose, you’ll need to adjust it.

As with most motorcycle work, that’s easier than it seems. All you need to do is loosen the rear axle nut, to allow the rear wheel to slide in the swingarm a bit. Then you can use the adjustment nuts on either side of the swingarm to dial out some of the slack.