Diameter Pulley: 4 1/8 " double, High Temperature Bearing Upgrade, Upgraded to 3 Layer "Xtreme TOUGH" Integrated, Water Tight Wire Harness, Replaceable Pulley Bearing, ID: 1 1/8 ", High Torque Cool Coil Upgrade, Direction: Counter clockwise, Uses belt width: 1/2 Double A, Super Smooth "Xtreme Precision" Machined Pulley
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