2025 GIant Reign Advanced E+ 1

$4,300.00

Everything about the new Reign Advanced E+ is designed to make it the best descending E-MTB ever. From the bottomless feeling Maestro suspension with 170mm of rear travel (and a 180mm fork) to the punchy new SyncDrive Pro 3 motor and its lightweight, stiff and ultra-adjustable composite frame. We added a titanium skid plate, robust frame protection, and an innovative bash-guard with an elastomer damper—so you can send it with confidence on the most rugged, technical terrain.

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Description

Key Performance Features

Built for Ultimate Descending Control

This advanced e-mountain bike is engineered to dominate aggressive descents. It features a redesigned Maestro suspension system with an integrated lower link, delivering 170mm of rear travel paired with a 180mm suspension fork. This setup creates one of the most capable descending e-bikes Giant has ever produced.

The floating pivot design of the Maestro system keeps the suspension active and efficient while pedaling. Its progressive leverage curve allows the rear shock to remain sensitive at the beginning of the stroke while providing strong support toward the end of the travel. The result is a smooth, controlled ride that absorbs large impacts with ease, giving riders maximum confidence on steep drops, technical rock gardens, and high-speed trails.

Lightweight Yet Powerful Performance

The bike features a powerful 48-volt system, upgraded from the previous 36-volt platform. This improvement delivers higher efficiency, reduced heat, and less energy loss during demanding rides.

Powered by the SyncDrive Pro 3 motor, the system produces 90Nm of torque and up to 800 watts of peak power. It maintains strong torque even at higher pedaling cadences, providing smooth and consistent assistance across a wide range of riding conditions.

Despite its impressive power, the bike remains lightweight thanks to its advanced composite frame, with a total weight of approximately 22.3kg (size medium). The efficient 48-volt design also places less strain on the EnergyPak 560 battery, extending its lifespan to up to 2,300 charge cycles.

Built-In Protection for Aggressive Riding

Designed to handle demanding terrain, the bike includes several premium protection features. A dual-density battery cover protects the integrated battery while also acting as a full-length down-tube guard—ideal for transport on chairlifts, trailers, or truck tailgates.

The motor is protected by a new integrated skid plate made from corrosion-resistant titanium, which is significantly stronger than aluminum. Its smooth surface reduces friction, helping the bike glide over rocks, roots, and trail obstacles without getting caught.

To further protect drivetrain components, the bike is equipped with an MRP active bash guard featuring an elastomer damper and suspended design. This system provides exceptional protection for the chain and chainring while maintaining smooth and reliable performance on rough trails.

Seat Tube Length (inch) 15.7 16.7 17.7 18.7
A1 Seat Post Insertion Depth (inch) 9.3 10.2 11.2 12.2
B Seat Tube Angle 77.1° | 77.5° | 77.9° 77.1° | 77.5° | 77.9° 77.1° | 77.5° | 77.9° 77.1° | 77.5° | 77.9°
C Top Tube Length (inch) 22.4 | 22.4 | 22.4 23.7 | 23.7 | 23.6 24.6 | 24.6 | 24.5 25.9 | 25.8 | 25.8
D Head Tube Length (inch) 3.7 4.1 4.7 5.3
E Head Tube Angle 63.1° | 63.5° | 63.9° 63.1° | 63.5° | 63.9° 63.1° | 63.5° | 63.9° 63.1° | 63.5° | 63.9°
F Fork Rake (inch) 1.7 1.7 1.7 1.7
G Trail (inch) 5.2 | 5.1 | 5 5.2 | 5.1 | 5 5.2 | 5.1 | 5 5.2 | 5.1 | 5
H Wheelbase (inch) 48.3 | 48.3 | 48.3 49.6 | 49.6 | 49.6 50.7 | 50.7 | 50.7 52.1 | 52.1 | 52.1
I Chain Stay Length (inch) 17.7 | 17.7 | 17.7 17.7 | 17.7 | 17.7 17.7 | 17.7 | 17.7 17.7 | 17.7 | 17.7
J Bottom Bracket Drop (inch) 0.4 | 0.2 0.4 | 0.2 0.4 | 0.2 0.4 | 0.2
K Stack (inch) 25.5 | 25.4 | 25.3 25.8 | 25.7 | 25.6 26.3 | 26.3 | 26.2 26.9 | 26.8 | 26.7
L Reach (inch) 16.8 | 16.9 | 17.1 18 | 18.1 | 18.3 18.7 | 18.9 | 19.1 19.9 | 20.1 | 20.2
N Handlebar Width (inch) 31.5 31.5 31.5 31.5
O Stem Length (inch) 1.6 1.6 1.6 1.6
P Crank Length (inch) 6.3 6.3 6.3 6.3
Q Wheel Size R27.5″ / F29″ R27.5″ / F29″ R27.5″ / F29″ R27.5″ / F29″
Specs

  • Motor
    Giant SyncDrive Pro 3, 90Nm PedalPlus 6-sensor technology
  • Controller
    Giant RideControl Ergo 4
  • Display
    Giant RideControl GO Lux
  • Battery
    Giant EnergyPak Smart 560Wh, integrated, 48V
  • Charger
    Giant EnergyPak smart charger 4A, 48V
  • Connectivity
    Aegis Tire Checker included in RideControl display
  • Sizes
    S, M, L, XL
  • Colors
    Mercury/Carbon Smoke
  • Frame
    Advanced-grade composite frame, Advanced forged composite upper rocker, 170mm Maestro suspension system
  • Fork
    Fox 38 Performance Elite, 29″, 180mm travel, Grip X2 damper, 44mm offset, KaboltX 110x15mm Boost axle
  • Shock
    Fox Float X Performance, EVOL Large Volume sleeve, 205x65mm Trunnion mount, custom tuned
  • Handlebar
    Giant Contact SL TR35, 35x800mm, 35mm rize, Up: 5⁰ Back: 9⁰
  • Grips
    Giant Tactal Pro-E, tapered design, 135mm Ø28~30mm (S/M) 142mm Ø29~32mm (L/XL)
  • Stem
    Giant Contact SL 35
  • Seatpost
    Giant Contact Switch adjustable dropper, 30,9mm (S:110~140, M:140~170,L/XL: 170~200) MMX remote
  • Saddle
    Giant Romero, Neutral
  • Shifters
    SRAM Eagle 90 Transmission Single Click
  • Rear Derailleur
    SRAM 90 Eagle Transmission
  • Brakes
    TRP DH-R EVO, hydraulic disc, E2.3 caliper, 4-piston, 220mm [F/R]
  • Brake Levers
    TRP DH-R EVO
  • Cassette
    SRAM Eagle Transmission, 10-52T, 12-speed
  • Chain
    SRAM 70 Eagle Transmission Flattop Powerlink 12-speed
  • Crankset
    SRAM Eagle Transmission 36T chainring Praxis e-HD forged crankarm set (Q-Factor:168mm, Length: 160mm), MRP AMg SL HD2XL chain guide with bashguard. With ‘Forefront’ adjustability and ‘Popup’ tool-free chain access
  • Rims
    Giant e-TRA, Hookless, 30mm inner width, Hollow Side-Wall Design for improved strength and flat protection, 2~4psi lower air pressure recommended
  • Hubs
    Giant e-TRA, E-Drive 260Nm 6-Pawl Driver, 72T engagement, 15x110mm [F] 12x148mm [R], e-bike optimized
  • Spokes
    Giant TRA, Dynamic Balanced Lacing
  • Tires
    Maxxis Assagai 29×2.5″ foldable, tubeless, EXO+ 3C MaxxGrip[F] Maxxis MINION DHR II 27.5×2.4″ WT foldable, Tubeless, DoubleDown, 3C MaxxGrip Compound [R]
  • Extras
    Aegis Tire Checker
  • Lighting
    Optional: – Giant Recon series e-bike lights available and direct connectable
  • Weight
    The most accurate way to determine any bike’s weight is to have your local dealer weigh it for you. Many brands strive to list the lowest possible weight, but in reality weight can vary based on size, finish, hardware and accessories. All our bikes are designed for best-in-class weight and ride quality.
Additional information
Color

Mercury

,

Carbon Smoke

Frame Size

S

,

M

,

L

,

XL

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