The Shimano FC-3503 Sora 9 speed triple chainrings are the perfect replacement for worn or damaged chainrings
Shimano's class leading chainrings offer the optimum balance of light weight and rigidity for precise shifts even under high load
The teeth have been developed to work only in conjunction with 9-speed HG chains for improved contact providing more efficiency and improved power transfer
Genuine Shimano replacement chainrings for the FC-3503 Sora triple cranksets available in 50T (Outer ring), 39T (Middle ring), 34T (Inner ring)
Shimano part numbers: 50T-D - Y1NC98030, matches 39T-D - Y1NC98010 and 30T-D - Y1NC30000
