Dr. Pulley 16x13 Round Roller Weights, Part #169-237

Dr. Pulley 16x13 Round Roller Weights for 50cc 4-stroke QMB139 engines. Dr. Pulley Round Roller Weights have exceptional durability, heat resistance and are low friction and low wear. Size: 16x13. Set of 6. Lasts longer than standard roller weights. Excellent Heat Resistance. Low Friction / Low Wear.