Genuine Shimano STEPS 4-arm adapter (chainring carrier) providing a 55mm chain line. This is the spider that the SM-CRE80 / SM-CRE70 series e-bike chainrings mount to. Sold as the adapter only - no chainring included.

Chain line is critical: this is the 55mm version (part Y0KJ9801T). A 53mm version (part Y1VY00020) also exists for the same chainrings - confirm your required chain line before ordering.

Fits

  • SM-CRE80-B chainring
  • SM-CRE80-12-B chainring
  • SM-CRE70-B chainring
  • SM-CRE70-12-B chainring
  • Used on FC-E8050 / FC-E8000 / FC-M8050 STEPS cranksets
Covered by Shimano's spare-parts warranty against manufacturing defects. For any warranty claim or support, return the item to Tune Cycles and we will manage the process for you.
  • 4-arm adapter / chainring carrier (spider) only - chainring not included
  • Provides 55mm chain line
  • Fits SM-CRE80-B, SM-CRE80-12-B, SM-CRE70-B, SM-CRE70-12-B chainrings
  • For Shimano STEPS cranksets FC-E8050 / FC-E8000 / FC-M8050
  • Shimano part number Y0KJ9801T
Part numberY0KJ9801T
Type4-arm adapter (chainring carrier / spider)
Chain line55mm
FitsSM-CRE80-B, SM-CRE80-12-B, SM-CRE70-B, SM-CRE70-12-B
CranksetFC-E8050, FC-E8000, FC-M8050 (STEPS)
IncludedAdapter only (chainring not included)
SKU SHM-Y0KJ9801T
Barcode # 4550170818920
Brand Shimano