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Adaptable Cup Seal: Other pumps seal with o-rings which lose effectiveness as friction heat increases
Adjustable Frame Geometry: All-new flip chip – Maestro 3 offers more adjustability allowing you to easily change the head tube and seat tube angles
And finally
64mmFeatures:IPX7
Shimano FC-09 Chainring 54T GIANTSALE26 Adaptable Cup Seal: Other pumpsThe Shimano Dura Ace FC 09 11 speed chainrings are the perfect replacement for worn or damaged chainrings. Features HOLLOWGLIDE hollow outer chainring technology significantly improves rigidity and reduces weightEliminates outer chainring flex for precise shifting performance, even under high loadTeeth specifically developed for use with 11 speed chains to enhance contact, efficiency, and power transfer SpecificationsCompatible chain: Shimano HG 11
