Genuine Shimano replacement outer chainring for the 105 FC-R7100 12-speed crankset. This is the 50T ring from the 50-34T combination, so it restores the original gearing when the big ring has worn or when you are refreshing the whole drivetrain with a new chain and cassette.

Highlights

• Genuine Shimano 105 R7100 spare part (Y0RS98010)
• 50T outer chainring, matched to the 34T inner ring of the 50-34T crankset
• Tooth profile designed for Shimano's 12-speed HYPERGLIDE+ chains and fast front shifts
• Fits the FC-R7100 4-arm crank, 110 mm BCD

Compatibility and fit

Fits the Shimano 105 FC-R7100 crankset and is intended to be paired with the 34T inner ring from the same 50-34T set; Shimano matches inner and outer rings as a pair, so use the 34T-NK inner (Y0RS9801T) with it. Use with a Shimano 12-speed chain such as the CN-M7100. Sold as a single outer ring; fixing bolts are not included.