SHIMANO SORA FC-3550 Front Chainwheel – Chainrings
Chainring teeth combinations: 46-34T / 50-34T
Bolt circle diameter: 110 mm
The following are a “B” match which indicates that the parts are usable, but differ in materials, appearance, finish, size etc.
– FC-R345
– FC-3450
Original Shimano parts guarantee that all components work perfectly for optimum performance and maximum safety and longevity.