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Once you have experienced the speedy sensation of aero optimization you'll never get enough
Thanks to this extensive computer modeling
Step-riveted pins for strong side plate retention
} HollowPin construction is lighter and stronger than a solid pin
absoluteBLACK Premium Oval Road Chainring 4x110BCD 50T - Black CheckoutSpec= SRAM Guide/Avid X0 Trail - Sintered Metalli Once you have experienced theShimano Dura Ace 9000, Ultegra 6800, Shimano 105 5800, Tiagra 4700. Compatible with Di2 & Pioneer, SRM and other power meters Inner and outer oval chainrings are optimized with smooth shifting in mind Features smooth angled surfaces, (6) up shifting ramps (outer ring), and (12) down shifting points (outer ring) Oval rings help the rider to spin smoother and more efficiently Example: 32t is equivalent to 30t at dead spot and 34t at the power zone Works
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