New Grooved Pulleys:
PM-2067-G
PM-2076-G
PM-2087-G
http://www.thumpracing.com/grooved_pulleys.htm
You can also check our new smooth idler pulleys (60mm, 70mm, 100mm flanged) @ http://www.thumpracing.com/idler_pulleys.htm
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Best Run S/C 1.643 60Ft., 7.216 1/8th mile...