Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t MFPN=11253 Primaloft 8 oz Gold Insulation

Primaloft 8 oz Gold Insulation with Cross Core Aerogel technology

Redesigned body shape and rear cover material designed to increase grip which ensures performance in all weather conditions

Aluminum lever blades

Endurance Formulation Compound with Graphene provides dependability durability and performance made for the long haul no matter the weather

Shimano Dura-Ace R9100 42t 110mm 11-Speed Chainring for 42/54t MFPN=11253 Primaloft 8 oz Gold InsulationThis Shimano chainring allows you to update your Dura Ace FC R9100 11 speed crankset with a chainring configuration to best fit your riding style. 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 Features a weight saving 4 bolt design with a BCD of 110 mm Ring Position Type Inner Tooth Count 42 Drivetrain