

AFAM offers this 520XLR2 chain kit for the POLARIS TRAIL BOSS 250 cc, featuring an 80-link chain equipped with XS-Ring seals, a standard 11-tooth sprocket, and a standard 42-tooth steel chainring. The XLR2 chain features XS-Ring seals that help maintain lubrication at the joints and reduce friction. The 11/42 gear ratio—equal to 3.82—provides a low gear ratio that favors acceleration, traction, and quick response rather than top-end speed. The set is standard quality, featuring a steel-colored chain and a riveted quick-link. The steel sprocket completes this configuration, designed for regular drivetrain use.
Fits:
2003 POLARIS TRAIL BOSS 250
2002 POLARIS TRAIL BOSS 250
2000 Polaris Trail Boss 250
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