Giant Reign E+ Pro

No. Reign E+ Pro models use Giant's SyncDrive Pro system, developed with Yamaha. Depending on generation, it provides around 80 to 85 Nm of torque and works with Giant's SmartAssist sensors.

It is a long-travel electric enduro bike intended for steep climbs and rough descents. Reign E+ Pro generations commonly pair roughly 160 mm of Maestro rear travel with a 170 mm fork.

Sensors monitor inputs such as pedaling force, cadence, speed, and gradient, then adjust motor support automatically. Riders can still select manual assistance levels through Giant's RideControl interface.

Battery capacity varies substantially by year: earlier Reign E+ Pro bikes commonly used a 500 Wh EnergyPak, while later Reign E+ models moved to larger packs such as 625, 750, or 800 Wh. The model year and frame compatibility must therefore be checked before ordering a replacement or range extender.