Genuine Shimano replacement chainrings for the FC-R9200 & FC-R9200-P cranksets . The Shimano Dura Ace FC-R9200 12 speed chainrings are the perfect replacement for worn or damaged chainrings. HOLLOWGLIDE, hollow outer chainring technology, giving vast improvements in rigidity and increased weight savings, whilst also removing outer chainring flex, hugely improving shift performance making it precise even under high load. The teeth have been developed to work only in conjunction with 12-speed chains for improved contact providing more efficiency and improved power transfer. Compatible chain Shimano HG 12-speed. Shimano part numbers: 54T-NJ - Y0MZ98030, matches 40T-NJ - Y0MZ40000....
Best Price: £152.99 from Merlin Cycles