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The Reign E+ is a proven trail ripper that gives you the power to enjoy the best parts of the ride again and again.

Trail technology

Proven Maestro rear suspension (160mm) and a powerful but compact SyncDrive Pro motor technology boost your capabilities on steep climbs and rugged descents. Updated geometry with a shorter rear end and longer reach allow superior handling and agility on technical terrain.

Total control

RideControl Ergo 3 offers integrated, user-friendly button controls that are easy to use. The Giant E-bike App gives you tuning options and E-bike specific fitness tracking.

Long-lasting power

Climb steep mountains and enjoy fun descents all day long with the new downtube-integrated EnergyPak featuring 800Wh of capacity.

Technology

E-Bike Motor

SYNCDRIVE PRO MOTOR

The SyncDrive Pro powertrain offers SmartAssist technology, an automatic adaptive support mode. Instead of manually choosing a support mode (Power, Sport, Active, Basic or Eco), riders can opt to ride with SmartAssist, an intelligent system that uses six sensors and advanced algorithms to determine the optimal amount of pedaling support while riding variable terrain.

Giant Reign Electric Mountain Bike

RIDECONTROL GO

The new RideControl Go unit, integrated into the top tube, features an on/off button and colored LED lights to indicate support mode and battery level. This clean setup eliminates the need for external wiring or additional handlebar-mounted units.

Giant Reign E Mountain Bike Controls

RIDECONTROL ERGO 3

The Reign E+ also comes with the RideControl Ergo 3, which is integrated with the handlebar grip. This three-button controller allows for a clean cockpit setup and can be configured for personal preferences via the RideControl App. It can be mounted on either the left or right side of the handlebar. Riders also have the option to add a second RideControl Ergo 3 unit on the opposite side for more controls.

Giant Reign Electric Mountain Bike Energy Pack

ENERGYPAK SMART

The new Reign E+ series features the new EnergyPak Smart battery system for long-range adventures. This is our most premium battery technology, cleanly integrated into the downtube of the frameset. It can charge up to 80 percent in just over three hours.

Giant Reign Electric Mountain Bike mixed wheel sizes

MIXED WHEEL SIZE

The Reign E+ features a mixed wheel size including a larger-diameter 29-inch front wheel. The larger wheel up front improves balance, control and roll-over capabilities on the roughest terrain. In the rear, a more compact motor and smaller 27.5-inch wheel helped our engineers tighten up the rear end by 19mm. This makes the new Reign E+ feel more nimble on the trail.

How far can I expect to ride on a single battery charge?

The range for a single battery charge can vary greatly depending on conditions such as the combined weight of the rider and cargo; wind resistance; tire pressure and tread profile; terrain and elevation changes; road or trail surface; outdoor temperature; maintenance of the E-Bike; and the condition of the battery.

The bar below gives an approximate range. Conditions are categorized as extreme, good and ideal. Extreme conditions typically occur when riding with a heavy load, strong headwinds or excessive climbs.

Range Extreme: 43 miles Good: 86 miles Ideal: 155 miles

Specifications

Motor SyncDrive Pro, 85Nm, powered by Yamaha
Controller RideControl GO integrated in TT, RideControl Ergo 3
Display Wireless display compatible
Battery EnergyPak Smart 800,EnergyPak Plus range extender compatible (exclude S Size)
Sizes S, M, L, XL
Colors Cordovan/Black
Frame ALUXX SL-grade aluminum, Advanced Forged Composite Upper Rocker, 160mm Maestro suspension system, 'Boost' 148x12mm, Universal Derailleur Hanger
Fork RockShox ZEB Select 29er, 170mm travel, Charger RC damper, 15x110 Boost, Maxle Stealth, E-bike Approved
Shock Fox Float X Performance, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned
Handlebar Giant Contact Trail, 35x800mm
Grips Giant Tactal Pro-E, single lock-on
Stem Giant Contact SL 35
Seatpost Giant Contact Switch, dropper, 30,9mm (S:125/M:150/ L&XL:170)
Saddle Giant Romero Trail
Pedals Flat pedal
Shifters Shimano Deore SLX
Front Derailleur MRP HD2 co-moulded chain guide
Rear Derailleu rShimano Deore SLX, 12-speed, Shadow+
Brakes Shimano SLX BR-M7120, 4-piston, hydraulic disc, 203mm
Brake Levers Shimano SLX, I-spec EV
Cassette Shimano HG-M6100, 10-51T, 12-speed
Chain KMC e.12 Turbo, EcoProteq, e-bike optimized
Crankset Praxis Wavetm 36T Cold Forged 4130 premium steel Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165)
Bottom Bracket n/a
Rims Giant AM 29" [F] 27.5"[R], Tubeless ready, 30mm inner width
Hubs Shimano MT410 Boost, Center-Lock, [F] 110x15 [R] 148x12mm Micro-Spline Drive Body Thru-axle
Spokes Sapim E-Lite [R] Race [F], e-bike optimized
Tires Maxxis Minion DHF 29x2.6" foldable, Tubeless, EXO+, 3C MaxxTerra[F]Maxxis High Roller II 27.5x2.5" foldable, Tubeless, DoubleDown, 3C MaxxTerra Compound [R]
Extras Tubeless kit (liquid, valves, levers, manual, tool)
Lock Torx 25 Battery Lock with built-in Torque limiter
Weight The most accurate way to determine any bike’s weight is to have your local Bicycle Warehouse 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.

Geometry

  S M L XL
  LOW | HIGH LOW | HIGH LOW | HIGH LOW | HIGH
SEAT TUBE LENGTH (inch) 15.7 16.7 17.7 18.7
SEAT TUBE ANGLE 76.7° | 77.5° 76.7° | 77.5° 76.7° | 77.5° 76.7° | 77.5°
TOP TUBE LENGTH (inch) 22.4 | 22.4 23.4 | 23.4 24.5 | 24.4 25.6 | 25.5
HEAD TUBE LENGTH (inch) 3.9 3.9 4.3 4.7
HEAD TUBE ANGLE 63.7° | 64.5° 63.7° | 64.5° 63.7° | 64.5° 63.7° | 64.5°
FORK RAKE (inch) 1.7 1.7 1.7 1.7
TRAIL (inch) 5.3 | 5.2 5.3 | 5.2 5.3 | 5.2 5.3 | 5.2
WHEELBASE (inch) 47.6 | 47.6 48.7 | 48.7 49.8 | 49.8 51 | 51
CHAIN STAY LENGTH (inch) 18 | 17.9 17.9 | 17.9 17.9 | 17.9 17.9 | 17.9
BOTTOM BRACKET DROP (inch) 1 | 0.6 1 | 0.6 1 | 0.6 1 | 0.6
STACK (inch) 25 | 24.9 25 | 24.9 25.4 | 25.2 25.7 | 25.6
REACH (inch) 16.7 | 16.9 17.7 | 17.9 18.7 | 18.9 19.7 | 19.9
STAND OVER HEIGHT (inch) 30.9 | 31.1 30.4 | 30.6 30.4 | 30.5 30.2 | 30.4
HANDLEBAR WIDTH (inch) 31.5 31.5 31.5 31.5
STEM LENGTH (inch) 1.6 1.6 2 2
CRANK LENGTH (inch) 6.3 6.3 6.5 6.5
WHEEL SIZE R27.5" / F29" R27.5" / F29" R27.5" / F29" R27.5" / F29"

Giant Reign E+ 2 Electric Mountain Bike

Reign E+ 2 Electric Mountain Bike

Regular price $6,500.00
Regular price Sale price $6,500.00
Sale Sold out
Size

The Reign E+ is a proven trail ripper that gives you the power to enjoy the best parts of the ride again and again.

Trail technology

Proven Maestro rear suspension (160mm) and a powerful but compact SyncDrive Pro motor technology boost your capabilities on steep climbs and rugged descents. Updated geometry with a shorter rear end and longer reach allow superior handling and agility on technical terrain.

Total control

RideControl Ergo 3 offers integrated, user-friendly button controls that are easy to use. The Giant E-bike App gives you tuning options and E-bike specific fitness tracking.

Long-lasting power

Climb steep mountains and enjoy fun descents all day long with the new downtube-integrated EnergyPak featuring 800Wh of capacity.

Technology

E-Bike Motor

SYNCDRIVE PRO MOTOR

The SyncDrive Pro powertrain offers SmartAssist technology, an automatic adaptive support mode. Instead of manually choosing a support mode (Power, Sport, Active, Basic or Eco), riders can opt to ride with SmartAssist, an intelligent system that uses six sensors and advanced algorithms to determine the optimal amount of pedaling support while riding variable terrain.

Giant Reign Electric Mountain Bike

RIDECONTROL GO

The new RideControl Go unit, integrated into the top tube, features an on/off button and colored LED lights to indicate support mode and battery level. This clean setup eliminates the need for external wiring or additional handlebar-mounted units.

Giant Reign E Mountain Bike Controls

RIDECONTROL ERGO 3

The Reign E+ also comes with the RideControl Ergo 3, which is integrated with the handlebar grip. This three-button controller allows for a clean cockpit setup and can be configured for personal preferences via the RideControl App. It can be mounted on either the left or right side of the handlebar. Riders also have the option to add a second RideControl Ergo 3 unit on the opposite side for more controls.

Giant Reign Electric Mountain Bike Energy Pack

ENERGYPAK SMART

The new Reign E+ series features the new EnergyPak Smart battery system for long-range adventures. This is our most premium battery technology, cleanly integrated into the downtube of the frameset. It can charge up to 80 percent in just over three hours.

Giant Reign Electric Mountain Bike mixed wheel sizes

MIXED WHEEL SIZE

The Reign E+ features a mixed wheel size including a larger-diameter 29-inch front wheel. The larger wheel up front improves balance, control and roll-over capabilities on the roughest terrain. In the rear, a more compact motor and smaller 27.5-inch wheel helped our engineers tighten up the rear end by 19mm. This makes the new Reign E+ feel more nimble on the trail.

How far can I expect to ride on a single battery charge?

The range for a single battery charge can vary greatly depending on conditions such as the combined weight of the rider and cargo; wind resistance; tire pressure and tread profile; terrain and elevation changes; road or trail surface; outdoor temperature; maintenance of the E-Bike; and the condition of the battery.

The bar below gives an approximate range. Conditions are categorized as extreme, good and ideal. Extreme conditions typically occur when riding with a heavy load, strong headwinds or excessive climbs.

Range Extreme: 43 miles Good: 86 miles Ideal: 155 miles

Specifications

Motor SyncDrive Pro, 85Nm, powered by Yamaha
Controller RideControl GO integrated in TT, RideControl Ergo 3
Display Wireless display compatible
Battery EnergyPak Smart 800,EnergyPak Plus range extender compatible (exclude S Size)
Sizes S, M, L, XL
Colors Cordovan/Black
Frame ALUXX SL-grade aluminum, Advanced Forged Composite Upper Rocker, 160mm Maestro suspension system, 'Boost' 148x12mm, Universal Derailleur Hanger
Fork RockShox ZEB Select 29er, 170mm travel, Charger RC damper, 15x110 Boost, Maxle Stealth, E-bike Approved
Shock Fox Float X Performance, EVOL Large Volume sleeve, 2-position lever, 205x62.5mm Trunnion mount, custom tuned
Handlebar Giant Contact Trail, 35x800mm
Grips Giant Tactal Pro-E, single lock-on
Stem Giant Contact SL 35
Seatpost Giant Contact Switch, dropper, 30,9mm (S:125/M:150/ L&XL:170)
Saddle Giant Romero Trail
Pedals Flat pedal
Shifters Shimano Deore SLX
Front Derailleur MRP HD2 co-moulded chain guide
Rear Derailleu rShimano Deore SLX, 12-speed, Shadow+
Brakes Shimano SLX BR-M7120, 4-piston, hydraulic disc, 203mm
Brake Levers Shimano SLX, I-spec EV
Cassette Shimano HG-M6100, 10-51T, 12-speed
Chain KMC e.12 Turbo, EcoProteq, e-bike optimized
Crankset Praxis Wavetm 36T Cold Forged 4130 premium steel Praxis e-Cadet+ custom forged crankarm set (S/M:160, L/XL:165)
Bottom Bracket n/a
Rims Giant AM 29" [F] 27.5"[R], Tubeless ready, 30mm inner width
Hubs Shimano MT410 Boost, Center-Lock, [F] 110x15 [R] 148x12mm Micro-Spline Drive Body Thru-axle
Spokes Sapim E-Lite [R] Race [F], e-bike optimized
Tires Maxxis Minion DHF 29x2.6" foldable, Tubeless, EXO+, 3C MaxxTerra[F]Maxxis High Roller II 27.5x2.5" foldable, Tubeless, DoubleDown, 3C MaxxTerra Compound [R]
Extras Tubeless kit (liquid, valves, levers, manual, tool)
Lock Torx 25 Battery Lock with built-in Torque limiter
Weight The most accurate way to determine any bike’s weight is to have your local Bicycle Warehouse 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.

Geometry

  S M L XL
  LOW | HIGH LOW | HIGH LOW | HIGH LOW | HIGH
SEAT TUBE LENGTH (inch) 15.7 16.7 17.7 18.7
SEAT TUBE ANGLE 76.7° | 77.5° 76.7° | 77.5° 76.7° | 77.5° 76.7° | 77.5°
TOP TUBE LENGTH (inch) 22.4 | 22.4 23.4 | 23.4 24.5 | 24.4 25.6 | 25.5
HEAD TUBE LENGTH (inch) 3.9 3.9 4.3 4.7
HEAD TUBE ANGLE 63.7° | 64.5° 63.7° | 64.5° 63.7° | 64.5° 63.7° | 64.5°
FORK RAKE (inch) 1.7 1.7 1.7 1.7
TRAIL (inch) 5.3 | 5.2 5.3 | 5.2 5.3 | 5.2 5.3 | 5.2
WHEELBASE (inch) 47.6 | 47.6 48.7 | 48.7 49.8 | 49.8 51 | 51
CHAIN STAY LENGTH (inch) 18 | 17.9 17.9 | 17.9 17.9 | 17.9 17.9 | 17.9
BOTTOM BRACKET DROP (inch) 1 | 0.6 1 | 0.6 1 | 0.6 1 | 0.6
STACK (inch) 25 | 24.9 25 | 24.9 25.4 | 25.2 25.7 | 25.6
REACH (inch) 16.7 | 16.9 17.7 | 17.9 18.7 | 18.9 19.7 | 19.9
STAND OVER HEIGHT (inch) 30.9 | 31.1 30.4 | 30.6 30.4 | 30.5 30.2 | 30.4
HANDLEBAR WIDTH (inch) 31.5 31.5 31.5 31.5
STEM LENGTH (inch) 1.6 1.6 2 2
CRANK LENGTH (inch) 6.3 6.3 6.5 6.5
WHEEL SIZE R27.5" / F29" R27.5" / F29" R27.5" / F29" R27.5" / F29"
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Product Data

  • Medium 5'7"-6'0": 1-GIA3328105 4712878864900
  • Large 5'7"-6'3": 1-GIA3328107 4712878864917