Highlights based on this e-bike’s specs, comparisons and practical strengths.
100
Excellent downhill control
Front and rear suspension should improve control and confidence on descents.
Front and rear suspension should improve control and confidence on descents.
Hydraulic disc brakes should provide controlled braking on descents.
The 29-inch or mullet wheel setup should help stability and control on descents.
The mountain bike design should be better suited to controlled descending.
100
Excellent off-road capability
The mountain bike design should be well suited to off-road riding.
The mountain bike design should be well suited to off-road riding.
Front and rear suspension should improve control and comfort off-road.
Hydraulic disc brakes should help with control on loose or uneven terrain.
Torque is strong compared with similar e-bikes, which should help on loose or uneven climbs.
The 29-inch wheel size should help rollover and stability on rougher terrain.
97
Excellent technical trail control
The mountain bike design is well suited to technical trail control.
The mountain bike design is well suited to technical trail control.
Front and rear suspension should significantly improve control on technical trails.
Hydraulic disc brakes should provide the control needed for technical trail riding.
The brake specification appears to include larger rotors, which can help braking power and heat management.
The 29-inch wheel size should help rollover and stability on technical terrain.
Torque is above average for this type of e-bike.
Torque-sensing assistance should help with smoother control on technical sections.
Multiple ride modes should help the rider manage assistance on technical trails.
88
Excellent rider information and controls
The included display or control unit should give useful ride information and control.
The included display or control unit should give useful ride information and control.
Multiple ride modes should give the rider more control over assistance levels.
Torque and cadence sensing should improve how precisely the bike responds to rider input.
87
Excellent smooth power delivery
Torque and cadence sensing should help the motor deliver more natural and controlled assistance.
Torque and cadence sensing should help the motor deliver more natural and controlled assistance.
Multiple ride modes should help riders choose a smoother level of assistance.
The included display or control unit should make it easier to manage assistance levels.
86
Excellent braking confidence
Hydraulic disc brakes should provide strong and controlled stopping power.
Hydraulic disc brakes should provide strong and controlled stopping power.
The brake specification appears to include larger rotors, which can help braking power and heat management.
85
Excellent trail control
The mountain bike format should feel well suited to trail riding.
The mountain bike format should feel well suited to trail riding.
Front and rear suspension should improve control on uneven trails.
Hydraulic disc brakes should improve control on loose or uneven trails.
The 29-inch wheel size should help rollover and stability on trails.
Torque is strong compared with similar e-bikes, which should help low-speed trail control.
Torque-sensing assistance should help with smoother power control on trails.
83
Good rough-road comfort
Front and rear suspension should significantly improve comfort on rough roads and uneven surfaces.
Front and rear suspension should significantly improve comfort on rough roads and uneven surfaces.
The larger wheel size should help roll over bumps and rough surfaces more smoothly.
The mountain bike format is generally better suited to rougher terrain.
Hydraulic disc brakes add useful control on rougher routes.
The bike weight may help it feel more planted over rough surfaces.
Frame material is listed as carbon fiber, which gives useful comfort and build context.
81
Good charging speed
Charging time is low compared with similar e-bikes.
Charging time is low compared with similar e-bikes.
The quoted charging time is long in absolute terms.
78
Useful removable battery
The removable battery makes charging, storage and battery handling more flexible.
The removable battery makes charging, storage and battery handling more flexible.
This bike type can be larger or heavier, so a removable battery adds useful charging flexibility.
Overview
The Giant Reign Advanced E+ 2 is a mountain bike built for trail riding, offering smooth motor support and confident braking that make it a solid choice for off-road adventures. Its carbon frame and suspension system provide a comfortable ride over rough terrain, while the torque and cadence sensor ensures a natural feel when climbing or cruising. The battery charges quickly and is removable, which is handy for charging at home or on the go. However, its lower motor power and battery capacity mean it may struggle on long or steep rides, requiring more careful planning for extended trips.
Best For
✓
This mountain e-bike should suit riders who prioritize off-road performance, trail control and comfort on rough terrain. Its hydraulic disc brakes, front and rear suspension, and responsive motor make it a strong choice for trail riding and technical climbs. The removable battery and fast charging time also appeal to riders who need flexibility and convenience for longer rides or multi-day adventures.
Who Should Avoid It
×
Riders seeking maximum range or a larger battery may want to compare alternatives, as the battery capacity is below average for similar mountain e-bikes, and the range is also below average compared with similar e-bikes. Riders wanting the liveliest assistance may find the motor power and power-to-weight ratio less punchy against similar e-bikes. However, the bike still offers confident hill support, smooth power delivery and strong braking, which may suit riders prioritising trail control and natural assistance response over raw power or extended range.
Ownership considerations
These points highlight practical ownership factors such as maintenance, storage, charging, everyday
handling and bad-weather usability.
27
More maintenance likely
Poor
Chain drive is common and serviceable, but needs more cleaning and lubrication than a belt drive.
Chain drive is common and serviceable, but needs more cleaning and lubrication than a belt drive.
Hydraulic disc brakes are a strong everyday setup, though they may need occasional specialist servicing.
A removable battery makes charging, storage and battery care easier.
Tyres are listed, but there is no clear puncture-protection signal.
The carbon frame material can be lightweight, though damage checks may need more care.
The mountain bike format may involve more wear from rougher riding and more complex components.
A higher number of gears can add drivetrain complexity.
Front and rear suspension can add maintenance complexity.
0
Limited storage practicality
Poor
The frame does not appear to fold, so storage will depend more on size and weight.
The frame does not appear to fold, so storage will depend more on size and weight.
The removable battery can make storage and indoor charging more flexible.
A full-suspension mountain bike format is usually bulkier and harder to store indoors.
30
Some lifting limitations
Weak
The bike weight is average for this type of e-bike.
The bike weight is average for this type of e-bike.
The listed weight is 24 kg.
The carbon frame material should help keep weight down.
The removable battery can reduce the weight when lifting or moving the bike.
The mountain bike format can be bulkier and harder to lift than simpler urban e-bikes.
The 29-inch wheel size can make the bike more awkward to lift or store.
78
Useful removable battery
Good
The removable battery makes charging, storage and battery handling more flexible.
The removable battery makes charging, storage and battery handling more flexible.
This bike type can be larger or heavier, so a removable battery adds useful charging flexibility.
81
Good charging speed
Good
Charging time is low compared with similar e-bikes.
Charging time is low compared with similar e-bikes.
The quoted charging time is long in absolute terms.
29
Low battery efficiency
Poor
Battery efficiency appears average for this type of e-bike.
Battery efficiency appears average for this type of e-bike.
The calculated range per battery unit is 98.21.
69
Decent everyday equipment
Mixed
The included display or control unit adds useful ride information for daily use.
The included display or control unit adds useful ride information for daily use.
A removable battery makes daily charging and storage more flexible.
Multiple ride modes should help adapt the bike to different everyday journeys.
Hydraulic disc brakes are useful equipment for confident daily riding.
Payload capacity is average or better, which helps with bags, shopping or daily kit.
53
Mixed bad-weather practicality
Mixed
Hydraulic disc brakes should provide better control and confidence in wet conditions.
Hydraulic disc brakes should provide better control and confidence in wet conditions.
Built-in lights are not listed, so bad-weather visibility may depend on extra accessories.
The mountain bike format should offer useful control on rough or slippery surfaces.
Suspension can help control and comfort on rough, wet or uneven surfaces.
The bike weight may help it feel more planted in wet or windy conditions.
The wheel size should be workable for regular poor-weather riding, depending on tyre choice.
Frame material is listed as carbon fiber, which gives useful durability and maintenance context.
28
Limited family utility practicality
Poor
Payload capacity is average for this type of e-bike.
Payload capacity is average for this type of e-bike.
The listed maximum payload is practical for lighter utility use.
The listed maximum payload is 130 kg.
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
A removable battery makes charging easier around family or utility use.
Where to buy
Priced at £6,499, the Giant Reign Advanced E+ 2 sits towards the higher end of the mountain e-bike market for 2026 models. Its premium positioning reflects advanced components and performance, though buyers may want to weigh this against more affordable alternatives in the same category.
Compared with similar mountain bike e-bikes on Bikkerr, this model sits £1,136.01 above average
The Giant Reign Advanced E+ 2 is listed at £6,499, which is on the higher side when compared to similar mountain e-bikes from the same year. It offers strong torque support and hydraulic braking, which are key for confident off-road performance, and the front and rear suspension should help with comfort and control on rough terrain. However, some similar e-bikes may offer a larger battery or more range, and others might feel more lively for their weight. For a mountain e-bike, the balance between power, braking, and suspension is important, and this bike leans into that with its torque-sensing assistance and removable battery. Riders who prioritise strong hill support, control and comfort on technical trails may find the value case more compelling, especially if they're less concerned about extended range. The trade-off in battery size is likely intentional to keep the weight down, which could be a consideration for those who need more range for longer rides.
We reach this value score by combining the bike’s price, specification, performance data and comparison against similar e-bikes in our database.
45
The price/value label suggests this bike is expensive compared with similar options.
350W more power15 miles more range12 Ah more battery3 kg heavierSame gears
Potential limitations
Areas where this e-bike may be less strong based on its specs and comparisons.
0
Limited motor punch
Motor power is low compared with similar e-bikes.
Motor power is low compared with similar e-bikes.
Torque is above average for this type of e-bike.
Power-to-weight is low.
Torque-sensing assistance should make the motor response feel more natural.
The calculated power-to-weight score is 10.42.
0
Limited commuting practicality
The mountain bike format is less commuting-focused and may be less efficient for daily urban use.
The mountain bike format is less commuting-focused and may be less efficient for daily urban use.
Range is below average, but may still be usable for shorter commutes.
Charging time is average or better, which is useful for regular commuting.
Built-in lights are not listed, so commuting equipment may need adding.
A removable battery makes home, office or indoor charging easier.
The display or control unit should make it easier to monitor assist level and battery use.
Hydraulic disc brakes are a strong practical feature for daily riding.
Payload capacity is average for this type of e-bike.
Front and rear suspension can add weight and complexity for normal commuting.
0
Low power-to-weight ratio
Power-to-weight is low compared with similar e-bikes.
Power-to-weight is low compared with similar e-bikes.
Motor power is low compared with similar e-bikes.
The calculated power-to-weight score is 10.42.
0
Limited storage practicality
The frame does not appear to fold, so storage will depend more on size and weight.
The frame does not appear to fold, so storage will depend more on size and weight.
The removable battery can make storage and indoor charging more flexible.
A full-suspension mountain bike format is usually bulkier and harder to store indoors.
5
Not ideal for steep hills
Torque is above average for this type of e-bike.
Torque is above average for this type of e-bike.
Power-to-weight is low.
Motor power is low compared with similar e-bikes.
The torque-sensing assistance should help the bike respond more naturally on climbs.
The bike has 10 or more gears, which should help on varied climbs.
The calculated power-to-weight score is 10.42.
5
No built-in light advantage
Built-in lights are not listed, so separate lights may be needed.
Built-in lights are not listed, so separate lights may be needed.
The display or control unit may make light and ride-status management easier.
19
Low battery capacity
Battery capacity is below average for this type of e-bike.
Battery capacity is below average for this type of e-bike.
The listed battery capacity should be practical for regular riding.
27
Limited longer-ride suitability
Range is below average compared with similar e-bikes, so longer rides may need more planning.
Range is below average compared with similar e-bikes, so longer rides may need more planning.
Battery capacity is low compared with similar e-bikes.
Battery efficiency appears broadly average.
The removable battery can make charging easier during longer days or multi-stop rides.
Charging time is shorter than average, which can help if topping up between rides.
The display or control unit should make it easier to monitor assistance and battery use on longer rides.
E-system & battery comparison
Motor Power
250 watts
▼ 190 W below average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
10.42 W/kg
▼ 10.0 W/kg below average
Battery Capacity
560 Wh
▼ 71 Wh below average
Claimed Max Range
55 miles
▼ 5.5 miles below average
Charge Time
3h 30m
▼ 105 mins faster than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
Yes
This mountain e-bike offers a balanced motor assistance that should feel natural and predictable on trails, with strong torque support to help with climbing and low-speed technical sections. Next to similar models, it may feel a bit more modest in outright punch and liveliness, especially when comparing power-to-weight ratios. The torque and cadence sensor setup should provide smooth, responsive assistance that works well with the bike's suspension and trail-focused design, making it easier to control on rough terrain. Riders looking for a reliable, trail-oriented motor that prioritizes control and natural feel over maximum speed may find this setup well-suited to their needs.
This explanation is based on the bike’s motor power, torque, battery capacity, claimed range, charging
time, sensor type and how those figures compare with similar e-bikes in our database.
eBike FAQs
Is this bike suitable for long off-road rides?
This bike is well-suited for off-road trails, with hydraulic disc brakes that provide confident stopping power and a suspension system that improves comfort on rough terrain. However, its lower motor power and battery capacity may limit its effectiveness on very long or steep rides, so you may need to plan for more frequent charging or shorter segments if you're aiming for extended off-road adventures.
How does the motor perform when climbing steep trails?
The motor provides smooth and controlled assistance when climbing steep trails, thanks to its torque and cadence sensor, which helps deliver power when you need it most. However, with a motor power of 250 watts and a below-average battery capacity, it may require more careful pacing on very steep or long climbs. The bike's above-average torque helps with hill climbing, but riders should plan for frequent recharging or carry a spare battery for extended trail use.
Does the bike handle rough terrain comfortably?
Yes, the Giant Reign Advanced E+ 2 handles rough terrain comfortably, thanks to its front and rear suspension system, which absorbs shocks and improves ride comfort over uneven surfaces. The hydraulic disc brakes provide confident stopping power, which is especially useful on technical trails. While the motor power is on the lower end for mountain e-bikes, the torque and cadence sensor help deliver smooth assistance when needed, making it a solid choice for trail riding.
Is the battery capacity sufficient for all-day mountain biking?
The battery capacity of 560 watt-hours is below average for mountain e-bikes, which means it may not last through an all-day ride, especially on rough or hilly trails. While the battery is removable and charges relatively quickly, you may need to plan for mid-ride charging or carry a spare battery if you're aiming for extended off-road sessions.
How practical is this bike for everyday use and charging?
This bike is practical for everyday use, especially if your rides are focused on trails and off-road terrain. The removable battery makes charging convenient at home or on the go, and the quick charge time helps keep you riding longer. However, with a below-average range and battery capacity, you may need to plan for more frequent charging if you're doing extended or daily rides, particularly on hilly or rough terrain.
Who is this bike best suited for?
This bike is best suited for trail riders who prioritize comfort and control over rough terrain, with a focus on moderate off-road adventures. The hydraulic disc brakes and suspension system provide confidence and comfort on uneven trails, while the motor offers smooth support for climbing. However, due to its lower motor power and battery capacity, it may not be ideal for long or steep rides, making it more suitable for shorter, technical trail rides rather than extended mountain biking sessions.
Is this bike good value compared with similar e-bikes?
The Giant Reign Advanced E+ 2 is a well-equipped mountain e-bike with strong braking, smooth motor support, and a comfortable ride over rough terrain. However, its lower motor power and battery capacity compared to similar models may limit performance on longer or steeper rides. At £6499, it's positioned as a premium option, so buyers should consider whether the features align with their specific trail needs and budget.
What are the main compromises of this bike?
The main compromises of this bike include its lower motor power and battery capacity compared to similar e-bikes, which may limit performance on long or steep rides. While it offers smooth power delivery and strong braking, the range is below average, so riders may need to plan for more frequent charging on extended trips. The power-to-weight ratio is also lower, which could affect acceleration and hill climbing in more demanding conditions.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2026
The bike was released this year
Screen
Giant RideControl GO (frame-integrated LED console)
Lights Included
No
Weight (inc battery): 24 kg
The website average for electric bikes is
23.93 kg.
This electric bike is 0.06 kg over the average. Total bike weight may vary depending on frame size.
Sizing & Geometry
Min / Max Rider Height
S: 163–172 cm | M: 169–179 cm | L: 176–186 cm | XL: 183–193 cm
