THESE 219 SPROCKETS HAVE UNDERGONE WEAR ANALYSIS AND ARE MADE OF HIGH QUALITY 7075-T6 ALUMINUM AND HAVE BEEN DESIGNED WITH PERFORMANCE IN MIND FROM THE TOOTH SHAPE AND THICKNESS TO REDUCE FRICTION GIVING YOU A LONGER SPROCKET LIFE THEN YOUR TRADITIONAL SPROCKETS WHICH CAN GIVE YOU A COMPETITIVE EDGE.
| 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 |
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