The 2026 Giant Reign Advanced E+ 2 is a high-performance, full-suspension electric enduro mountain bike designed specifically for aggressive descending and technical terrain. It features a lightweight carbon fiber frame, a powerful new 48-volt motor system, and a "mullet" wheel configuration (29-inch front and 27.5-inch rear) to balance rolling efficiency with agility.
Core Specifications
Frame and Chassis
Frame: Advanced-grade composite (carbon), with an Advanced forged composite upper rocker arm. It utilizes the Maestro suspension system with 170mm of rear travel.
Fork: RockShox Zeb Select, 180mm travel, Charger RC damper, 15x110mm Boost axle.
Shock: Fox Float X Performance, EVOL Large Volume sleeve, 205x65mm Trunnion mount, custom tuned for Giant.
Motor and Battery System
Motor: Giant SyncDrive Pro 3, powered by Yamaha. It delivers 90Nm of torque and up to 800W of peak power. The system is upgraded to a 48V architecture for better thermal efficiency and reduced energy loss.
Battery: Giant EnergyPak Smart 560Wh, integrated into the downtube.
Range Extender: Compatible with the EnergyPak Plus 280Wh (often included in specific regions like the UK).
Controller: Giant RideControl Ergo 4.
Display: Giant RideControl GO Lux, integrated into the top tube.
Charger: Giant EnergyPak Smart Charger (4A, 48V).
Drivetrain and Brakes
Rear Derailleur: Shimano Deore, 12-speed, Shadow+.
Shifters: Shimano Deore, 1x12.
Cassette: Shimano Deore, 10-51T, 12-speed.
Chain: Shimano Deore.
Crankset: Praxis e-HD forged crankarm set with a Praxis 36T cold-forged 4130 premium steel chainring.
Brakes: Shimano SLX, hydraulic disc, 4-piston calipers.
Rotors: 220mm front and 220mm rear for maximum stopping power.
Wheels and Tires
Rims: Giant AM30, Tubeless Ready, 30mm inner width.
Hubs: Giant E-Drive, 72T engagement, 110x15mm (Front) / 148x12mm (Rear).
Front Tire: Maxxis Assegai 29x2.5", Foldable, Tubeless, EXO+, 3C MaxxGrip.
Rear Tire: Maxxis Minion DHR II 27.5x2.4", Foldable, Tubeless, DoubleDown, 3C MaxxGrip.
Components
Handlebar: Giant Contact SL TR35, 800mm width, 35mm rise.
Stem: Giant Contact SL 35.
Seatpost: Giant Contact Switch adjustable dropper post (Travel varies by size: S: 110-140mm, M: 140-170mm, L/XL: 170-200mm).
Saddle: Giant Romero, Neutral.
Key Features & Geometry
Mixed Wheel Setup: 29-inch front wheel for clearing obstacles and a 27.5-inch rear wheel for better maneuverability.
Maestro 3 Flip-Chip: Allows for three different geometry settings (High, Mid, Low) to adjust the head tube angle, seat tube angle, and bottom bracket height.
Adjustable Reach: The headset features interchangeable inserts allowing for +/- 5mm of reach adjustment.
Protection: Includes a titanium motor skid plate, a dual-density battery cover, and a unique MRP active bash-guard with an elastomer damper to protect the drivetrain from impacts.
Tech Integration: Equipped with Aegis Tyre Pressure Sensors that provide real-time pressure readings via the top tube display.
Weight: Approximately 22.3 kg (Size Medium).