Description

Shimano FC-4703 Tiagra 10 Speed Triple Middle Chainring 39T-MM For 50/39/30T

The Shimano Tiagra FC-4703 10 speed triple chainrings are the perfect replacement for worn or damaged chainrings

The chainring teeth have been developed to work only in conjunction with Shimano HG-X 10-speed chains for improved contact providing more efficiency and improved power transfer

Genuine Shimano replacement chainrings for the FC-4703 cranksets available in 50T (Outer ring), 39T (Middle ring) and 34T (Inner ring)

Shimano part numbers: 50T-MM – Y1RD98030, matches 39T-MM – Y1RD98050, and 30T-MM – Y1RD30000

Compatible chain Shimano HG-X 10-speed

• Bolt Circle Diameter – 110mm
• Chainring Fitting – 4 Arms