Genuine Shimano replacement inner chainring for the Ultegra FC-R8100 12-speed crankset. This is the 36T ring from the 52-36T combination, so it restores the original gearing when the small ring has worn or when you are refreshing the whole drivetrain with a new chain and cassette.

Highlights

  • Genuine Shimano Ultegra R8100 spare part (Y0NG36000)
  • 36T inner chainring, matched to the 52T outer ring of the 52-36T crankset
  • Tooth profile designed for Shimano's 12-speed HYPERGLIDE+ chains
  • 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 52T outer ring from the same 52-36T set; Shimano matches inner and outer rings as a pair, so use the 52T-NH outer (Y0NG98020) with it. Use with a Shimano 12-speed chain such as the CN-M8100. Sold as a single inner 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
  • Inner chainring for the Ultegra FC-R8100 crankset
  • 36T, for the 52-36T combination
  • 12-speed, for Shimano HYPERGLIDE+ chains
  • 110 mm BCD, 4-arm
  • Pairs with the 52T outer ring (Y0NG98020)
  • Sold as a single ring, bolts not included
Part numberY0NG36000
TypeInner chainring
SeriesUltegra R8100
FitsFC-R8100 crankset
Teeth36T (for 52-36T)
BCD110 mm, 4-arm
Speed12-speed
Matching outer ring52T-NH (Y0NG98020)
Included1 chainring (bolts not included)
SKU SHM-Y0NG36000
Barcode # 4550170168032
Brand Shimano