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Every trail, every steep climb, every thrilling descent. Tested and developed by Giant's e-bike enduro pros, this updated trail ripper 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.

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 downtube-integrated EnergyPak

RANGE

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.

Specifications

Motor SyncDrive Pro, 85Nm, powered by Yamaha
Controller RideControl Ergo 3, grip integrated
Display RideControl GO, frame integrated LED displayANT+ Wireless display compatible
Battery EnergyPak Smart 625WhEnergyPak Plus range extender compatible
Sizes S, M, L, XL
Colors Amber Glow
Frame ALUXX SL-grade Aluminum, Advanced Forged Composite Upper Rocker, 160mm Maestro suspension system, 'Boost' 148x12mm, UDHTM derrailleur hanger
Fork RockShox Domain R 29er, 170mm travel, 15x110 Boost, Maxle Stealth, E-bike Approved
Shock Fox Float DPS 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
Front Derailleur MRP 1X HD2 custom co-molded chain guide
Rear Derailleur Shimano Deore 12-speed
Brakes Shimano Deore BR-M4120, 4-piston, hydraulic disc, 203mm
Brake Levers Shimano Deore BL-M4100, I-spec EV
Cassette Shimano Deore CS-M6100-12, 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]
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)
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 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) 17.9 | 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 F29" / R27.5" F29" / R27.5" F29" / R27.5" F29" / R27.5"

Giant Reign E+ 3 Electric Mountain Bike

Reign E+ 3 Electric Mountain Bike

Regular price $5,500.00
Regular price Sale price $5,500.00
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Every trail, every steep climb, every thrilling descent. Tested and developed by Giant's e-bike enduro pros, this updated trail ripper 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.

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 downtube-integrated EnergyPak

RANGE

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.

Specifications

Motor SyncDrive Pro, 85Nm, powered by Yamaha
Controller RideControl Ergo 3, grip integrated
Display RideControl GO, frame integrated LED displayANT+ Wireless display compatible
Battery EnergyPak Smart 625WhEnergyPak Plus range extender compatible
Sizes S, M, L, XL
Colors Amber Glow
Frame ALUXX SL-grade Aluminum, Advanced Forged Composite Upper Rocker, 160mm Maestro suspension system, 'Boost' 148x12mm, UDHTM derrailleur hanger
Fork RockShox Domain R 29er, 170mm travel, 15x110 Boost, Maxle Stealth, E-bike Approved
Shock Fox Float DPS 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
Front Derailleur MRP 1X HD2 custom co-molded chain guide
Rear Derailleur Shimano Deore 12-speed
Brakes Shimano Deore BR-M4120, 4-piston, hydraulic disc, 203mm
Brake Levers Shimano Deore BL-M4100, I-spec EV
Cassette Shimano Deore CS-M6100-12, 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]
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)
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 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) 17.9 | 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 F29" / R27.5" F29" / R27.5" F29" / R27.5" F29" / R27.5"
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Product Data

  • Orange / Medium 5'7"-5'11": 1-GIA351105 4712878661745
  • Orange / Large 5'10"-6'2": 1-GIA351107 4712878661752