Chain Care in Fifteen Minutes

Most riders either ignore their chain until it rattles or fuss over it every tank. Neither is right. A sport bike chain wants a quick look every 300 to 500 miles and a proper clean, lube and tension check about once a month if you ride regularly.

What you need

A rear paddock stand, a soft brush, a chain cleaner that is safe for O-rings, a rag you do not mind ruining, a chain lube you trust, and a ruler or the slack gauge printed on your swingarm sticker.

Clean first

Spin the rear wheel by hand and work the cleaner into the chain a few links at a time. Let it sit for a minute, then brush all three sides. Wipe it dry. Dirty lube on a dirty chain just grinds grit into the rollers.

Check slack

With the bike on the stand and the suspension unloaded, push the lower run of chain up and down at the midpoint. Measure the total travel. Most sport bikes want 25 to 35 mm, but the number on your swingarm sticker beats anything you read online. Rotate the wheel and check at three or four spots, because chains wear unevenly and you set tension at the tightest point.

Adjust

Loosen the axle nut, turn each adjuster the same number of flats, and watch the alignment marks on both sides. If the marks disagree, the sprockets are not in line and the chain will wear fast. Torque the axle to spec when you are done and recheck slack, because tightening the axle can change it.

Lube

Lube the inside of the chain, not the outside, so centrifugal force pulls it into the rollers instead of onto your rear tire. A thin, even coat is plenty. Let it set for ten minutes before you ride.

Signs it is time for a new one

Kinked links that do not free up after cleaning, a chain you can pull away from the rear sprocket by more than a few millimeters, or hooked, shark-fin sprocket teeth. Replace the chain and both sprockets together. A new chain on worn sprockets is a waste of money.

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