MPN: Y1VP42000 - Shimano - Dura-Ace R9100 11-Speed - Chainring. Integrates Shimano Hollowglide Technology: the high rigidity hollow structure cuts down on weight, yet maintains strength to provide better power transfer and quicker, more precise front shifting.
![Shimano DURA-ACE FC-R9100 42T Chainring -BLACK -for 54/42T or 55/42T [spu]](/images/thumb.php?i=53965776&s=195)
