219 X-TREME gears are made from 7075-T6 aluminum making them LIGHTWEIGHT , STRONG and DURABLE with LONGEVITY. The X-TREME racing sprockets teeth are also precision cut which is designed to reduce friction at high speeds, which results in a smooth chain run and higher output. Comes anodized black.
219-gear-size | 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90 |
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