Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=J1817 while the Torsion Cap construction

while the Torsion Cap construction provides resilience and dynamic response

Stroke (ins) 3 Material Steel Spring Weight 400

Provides quick and intuitive shifting cyclists expect from Shimano 105

Duro-Tek cover

providing a tighter and even more comfortable fit for all your activities

Shimano Dura-Ace 9000 52t 110mm 11-Speed Chainring for 36/52t ModelNumber=J1817 while the Torsion Cap constructionThis Shimano chainring allows you to update your Dura Ace FC 9000 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 Ideal for road cycling Ring Position Type Outer Tooth