The Shimano CN-M8100 is the 12-speed HYPERGLIDE+ chain Shimano specifies for both the Deore XT M8100 mountain bike groupset and the Ultegra R8100 road groupset, so it is the right replacement for either drivetrain. Supplied at 126 links with a Quick Link, so it fits the longest road and MTB chain lengths and can be shortened to suit.

Highlights

  • HYPERGLIDE+ design for smooth shifting under full pedalling load, both up and down the cassette
  • Extended inner-plate profile improves chain retention over rough ground
  • SIL-TEC surface treatment for a quieter, longer-lasting chain
  • Chromised roller link pins for wear resistance
  • 126 links with Quick Link (SM-CN910-12) included for tool-free joining
  • Also fits Shimano STEPS e-bike drivetrains

Compatibility and fit

Shimano HG 12-speed chain. Specified for the Ultegra R8100 road groupset and the Deore XT M8100 mountain bike groupset, and compatible with every Shimano 12-speed HYPERGLIDE+ drivetrain (Dura-Ace R9200, 105 R7100, GRX RX820, XTR M9100, SLX M7100, Deore M6100) and Shimano STEPS e-bike systems. Not compatible with 11-speed or earlier drivetrains. The Quick Link is single-use: fit a new link if the chain is opened again. Shorten to length before fitting.

Shimano warrants to the original retail purchaser that its bicycle components are free from non-conformities in material and workmanship for two years from the date of purchase. Normal wear is not covered. For any warranty claim, return the item to Tune Cycles and our team will manage the process on your behalf.

  • Shimano HG 12-speed HYPERGLIDE+ chain
  • Specified for Ultegra R8100 and Deore XT M8100; fits every Shimano 12-speed drivetrain
  • Extended inner plate for greater chain retention
  • SIL-TEC surface treatment
  • Chromised roller link plates and pins
  • 126 links
  • Quick Link (SM-CN910-12) included, single-use
  • Shimano STEPS e-bike compatible
  • Average weight 252 g (Shimano figure, 116 links)
ModelCN-M8100
Item codeICNM8100126Q
TypeHG 12-speed, HYPERGLIDE+
Links126
ConnectorQuick Link SM-CN910-12 (included, single-use)
PinChromised roller link pin
PlatesSIL-TEC treated
Compatible groupsetsShimano 12-speed road and MTB (Dura-Ace R9200, Ultegra R8100, 105 R7100, GRX RX820, XTR M9100, XT M8100, SLX M7100, Deore M6100) and STEPS e-bike
Average weight252 g (Shimano figure)
SKU SHM-ICNM8100126Q
Barcode # 4550170443900
Brand Shimano
Shipping Weight 0.3000kg
Shipping Cubic 0.001000000m3
Unit Of Measure each

Must be installed and serviced by qualified bicycle mechanic