Shimano Steps E8000 Switch for Assist – Black
To control the power mode on the STEPS drive unit, use this Firebolt left hand shifter like the XT/XTR Di2 version. This shifter feels the same as the Di2 version for a consistent and familiar feel. Should you get to a part of the trail where riding is not possible, you can active walk mode but pressing and holding the shifter down for assist up to 6kph. Easy to reach without having to move your hand from the grip with adjustable paddles.