SYNCDRIVE PRO 4

ELECTRIC BIKE MOTOR

Attack the climb. Commit to the line. SyncDrive Pro 4 creates a direct connection between your effort and the power beneath you, giving you greater control to take on harder trails. Up long ascents and over technical terrain, support stays smooth and predictable, working with you rather than taking over.

EVERY PEDAL STROKE, PERFECTED

DISCOVER SYNCDRIVE PRO 4

Max. Power

850 Watts

Weight

2.5 Kg

Torque

120 Nm

Support Ratio

500%

Response Time

0.2 seconds

Walk Assist

Adaptive

Moisture

Membrane

Waterproof

IPX7

INSTANT ENGAGEMENT

The moment you press on the pedals, SyncDrive Pro 4 is already there. Power doesn’t wait for cadence to build. The motor reads your effort and responds in just 0.28 seconds. Up to 500% support gives you decisive pickup for steep restarts and tight uphill turns, with no pauses or disruptions to your rhythm.

EFFICIENT POWER-TO-WEIGHT

At just 2.4 kg, SyncDrive Pro 4 is Giant’s lightest motor and the most powerful for its size. The 48V platform delivers up to 120 Nm of torque and 850W of peak power, achieving Giant’s highest torque-to-weight ratio. Less mass to carry uphill. More power when you ask for it.

INTUITIVE CONTROL

Built on more than 15 baseline parameters, developed with Yamaha and refined through six exclusive Giant tuning metrics, SyncDrive Pro 4 reads your pedaling force with precision. The result is Giant’s most natural, intuitive pedaling feel, giving you the control to ease off or dig in as the terrain demands.

TUNED TO YOU

Every rider demands something different with their power. Some want it smooth and steady, others want it sharp and immediate. The RideControl App puts it all right in your hands, letting you tailor the settings of SyncDrive Pro 4 to your technique and terrain.

SUPPORT

Choose how much the motor helps, balancing your own effort with the assistance you want.

TORQUE

Set the maximum torque available when the going gets steep.

ACCELERATION

Choose how power builds, from smooth and controlled to punchy and aggressive.

RESPONSIVENESS

Adjust how quickly support engages when you start pedaling.

SIX SENSOR TECHNOLOGY

You choose the feel. Six sensors help keep it consistent. Reading your pedaling and E-bike movement in real time, they feed information straight to the motor. As gradients steepen or pace changes, assistance stays responsive to your effort.

EXPLORE RIDECONTROL APP

BOOST MODE

When the trail demands everything, unleash SyncDrive Pro 4’s strongest support. Boost Mode delivers up to 500% support, 120Nm of torque and 850W of peak power, with the fastest acceleration and instant pedal engagement. An aggressive, reactive feel puts the motor’s full capability behind your toughest uphill efforts.

TRACTION CONTROL

Keep your drive when the climb turns loose. By monitoring your pedaling and detecting signs of rear-wheel slip, Traction Control quickly adjusts motor output to help restore grip. Once traction returns, your original support setting resumes, helping you turn power into forward momentum.

PEDALING BEHAVIOR

Monitors rider cadence and torque for unusual changes while pedaling.

SLIPPERY CONDITIONS

Detects rear-wheel spin or sudden E-bike movement that can indicate a loss of traction.

AUTOMATIC ADJUSTMENT

Quickly adjusts motor output to help restore rear-wheel grip and maintain controlled forward motion.

GRIP RESTORED

Once traction returns, the motor immediately resumes the original support setting.