Deore XT Di2 shift switch for Shimano STEPS e-MTBs

The SW-M8150 is the right-hand Di2 shift switch for a Shimano STEPS e-MTB running the RD-M8150 rear derailleur. Two light, positive buttons replace the mechanical trigger and the switch draws its power from the bike's battery through the drive unit, so there is no separate Di2 battery to charge.

Choose your mount

Pick the band-clamp version to fit any 22.2 mm bar, or I-SPEC EV to bolt the switch straight onto a compatible Shimano brake lever clamp for a tidier cockpit.

Compatibility

For Shimano STEPS drive units that support Di2 shifting, with the RD-M8150 rear derailleur and an EW-SD300 E-tube wire (sold separately). Not for use with a Di2 battery system on a non-assisted bike.

Shimano offers a limited warranty covering defects in materials and workmanship. Wear, incorrect installation and crash damage are not covered. For warranty support, return the item to Tune Cycles with your proof of purchase.

  • Right-hand Di2 shift switch for Shimano STEPS e-MTB drivetrains
  • Powered by the bike's main battery through the drive unit, no separate Di2 battery
  • Choice of band-clamp or I-SPEC EV mount
  • Shift function customisable in the E-TUBE PROJECT app
  • Pairs with the Deore XT Di2 RD-M8150 rear derailleur
BrandShimano
SeriesDeore XT Di2 (STEPS)
Part NumberSW-M8150
HandRight
MountBand clamp (SW-M8150-R) or I-SPEC EV (SW-M8150-IR)
ConnectionE-tube SD300 port
Pairs withRD-M8150 rear derailleur, EW-SD300 wire
SKU SHM-SW-M8150-GRP
Brand Shimano