The Shimano STEPS SC-EM800 is the dedicated cycle computer display for the EP8 e-MTB drive system — a low-profile, full-colour unit that keeps you in command of every ride. Slim enough to tuck in tight next to the stem, it shows all the data you need at a glance and connects wirelessly to the E-TUBE PROJECT app for on-the-fly customisation of assist profiles and power characteristics.

Highlights

  • Colour LCD display: 1.6-inch colour screen is readable in direct sunlight, presenting speed, assist mode, battery level, estimated range, cadence, ride time, distance, odometer, Di2 gear position, and error messages.
  • Dual wireless protocols: Bluetooth LE connects to the E-TUBE PROJECT smartphone app for real-time tuning; ANT private protocol feeds data to compatible third-party cycle computers for deeper ride analytics.
  • EP8-native performance: Designed exclusively for the DU-EP800 drive unit — unlocks full system integration including two customisable assist profile slots and precise power-mode switching between OFF, ECO, TRAIL, and BOOST.
  • Compact and low-profile: Flat, minimalist housing integrates cleanly into the cockpit without protruding hardware — ideal for full-suspension e-MTBs where bar space is at a premium.
  • Multiple screen profiles: Customisable display profiles let you choose which data fields appear, switchable via the handlebar button without stopping.
  • E-Tube SD300 connectivity: Uses the slimmer EW-SD300 E-Tube cable standard with four ports; an optional EW-AD305 adapter enables compatibility with older EW-SD50 cables.

E-TUBE PROJECT Integration

Pair the SC-EM800 with the E-TUBE PROJECT Cyclist or E-TUBE PROJECT Professional app to customise assist power curves, configure display profiles, and update firmware — all wirelessly. Two custom ride profiles can be saved to the display for instant switching between riding styles, from flow trail cruising to technical climbing.

Third-Party Computer Compatibility

The SC-EM800's ANT private wireless output broadcasts battery capacity, power output, assist mode, speed, Di2 gear position, estimated range, and odometer data to compatible third-party head units. This lets you consolidate all ride data on a single screen if your preferred GPS computer supports Shimano's ANT protocol.

Compatibility & Fit

The SC-EM800 is compatible exclusively with the Shimano STEPS EP8 drive unit (DU-EP800) — it is not compatible with E6100, E7000, or E8000 systems without firmware considerations. Handlebar clamp fits 31.8mm and 35.0mm diameter bars. Connects via EW-SD300 E-Tube cable (SD300 port type). Compatible with Shimano Di2 groupsets for gear position display.

Shimano offers a limited warranty covering defects in materials and workmanship. For warranty support, return the item to Tune Cycles.
  • 1.6-inch colour LCD display — shows speed, assist mode, battery level, estimated range, cadence, distance, ride time, odometer, Di2 gear position, and error messages
  • Bluetooth LE wireless — connects to E-TUBE PROJECT app for live customisation of assist power profiles
  • ANT private wireless — broadcasts system data to compatible third-party cycle computers
  • Two customisable assist profiles — configure and switch between personalised power settings on the fly
  • Switchable assist modes — OFF, ECO, TRAIL, and BOOST selectable from the handlebar button
  • Multiple configurable display profiles — choose which data fields appear on each screen
  • Low-profile, flat housing — minimal cockpit footprint, ideal for e-MTB bar setups
  • Handlebar clamp for 31.8mm and 35.0mm bar diameters — includes both band sizes
  • EW-SD300 E-Tube ports (×4) — compatible with EW-AD305 adapter for older SD50 cables
  • EP8 (DU-EP800) exclusive — full system integration with Shimano's latest e-MTB drive unit
ModelSC-EM800
Part NumberISCEM800D
Compatible Drive UnitShimano STEPS EP8 (DU-EP800)
Display1.6-inch colour LCD
Weight41 g
Handlebar Clamp Diameter31.8 mm / 35.0 mm
E-Tube Port TypeEW-SD300 (SD300)
E-Tube Ports4
Wireless ConnectivityBluetooth LE, ANT (private)
App CompatibilityE-TUBE PROJECT Cyclist / Professional
Displayed DataSpeed, assist mode, battery level, estimated range, cadence, ride time, distance, odometer, Di2 gear position, error messages
Assist ModesOFF, ECO, TRAIL, BOOST
Custom Profiles2
SKU SHM-ISCEM800D
Barcode # 4550170153212
Brand Shimano