Genuine Shimano replacement outer chainring for the Ultegra FC-R8100 12-speed crankset. This is the 52T ring from the 52-36T 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 Ultegra R8100 spare part (Y0NG98020)
  • 52T outer chainring, matched to the 36T inner ring of the 52-36T crankset
  • Tooth profile designed for Shimano's 12-speed HYPERGLIDE+ chains and fast front shifts
  • Fits the FC-R8100 4-arm crank, 110 mm BCD

Compatibility and fit

Fits the Shimano Ultegra FC-R8100 crankset and is intended to be paired with the 36T inner ring from the same 52-36T set; Shimano matches inner and outer rings as a pair, so use the 36T-NH inner (Y0NG36000) with it. Use with a Shimano 12-speed chain such as the CN-M8100. Sold as a single outer ring; fixing bolts are not included.

Covered by Shimano's spare-parts warranty against manufacturing defects. Normal wear is not covered. For warranty support, return the item to Tune Cycles.

  • Genuine Shimano replacement part
  • Outer chainring for the Ultegra FC-R8100 crankset
  • 52T, for the 52-36T combination
  • 12-speed, for Shimano HYPERGLIDE+ chains
  • 110 mm BCD, 4-arm
  • Pairs with the 36T inner ring (Y0NG36000)
  • Sold as a single ring, bolts not included
Part numberY0NG98020
TypeOuter chainring
SeriesUltegra R8100
FitsFC-R8100 crankset
Teeth52T (for 52-36T)
BCD110 mm, 4-arm
Speed12-speed
Matching inner ring36T-NH (Y0NG36000)
Included1 chainring (bolts not included)
SKU SHM-Y0NG98020
Barcode # 4550170168056
Brand Shimano