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.
100
Excellent battery capacity
Battery capacity is high compared with similar e-bikes.
Battery capacity is high compared with similar e-bikes.
The listed battery capacity is large in absolute terms.
97
Excellent removable battery practicality
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.
Because the bike is heavier than average, removing the battery can make handling and charging more convenient.
The larger battery capacity makes removable charging more useful for day-to-day convenience.
The longer charging time makes it more useful to charge the battery separately from the bike.
89
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 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.
The bike is heavier than average for its type, which may affect technical handling.
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.
85
Excellent for longer rides
Range is high compared with similar e-bikes, which is one of the strongest signs it should suit longer rides.
Range is high compared with similar e-bikes, which is one of the strongest signs it should suit longer rides.
Battery capacity is strong 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 longer than average, which may be less convenient for back-to-back longer rides.
The display or control unit should make it easier to monitor assistance and battery use on longer rides.
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.
Overview
The CUBE STEREO HYBRID ONE77 HPC SLX 800 is a mountain bike built for trail riding, offering smooth motor support and a high-capacity battery that makes it well-suited for longer off-road adventures. Its carbon frame and hydraulic disc brakes provide a solid balance of performance and control, while the removable battery adds convenience for charging and storage. However, the bike's lower motor power and slower charging time may affect its responsiveness and convenience for frequent riders. At 25.7 kg, it's a bit heavier than average, which could make lifting it more challenging, especially when transporting.
Best For
✓
This mountain e-bike should suit riders who prioritize off-road performance and want a reliable companion for trail riding and longer adventures. Its high battery capacity and smooth power delivery make it a strong choice for those seeking natural assistance and extended range on rough terrain. The front and rear suspension, combined with hydraulic disc brakes, provide comfort and confidence on uneven surfaces, making it well-suited for riders who frequently tackle trails or mixed-terrain routes. Riders who value the flexibility of a removable battery for charging away from the bike may also find this feature particularly useful.
Who Should Avoid It
×
Riders wanting the liveliest assistance or quick turnaround charging may be better served by comparing alternatives. The motor power is lower than similar mountain e-bikes, which could affect acceleration and punch, and the charging time is slower than many rivals in this category. However, the bike still offers strong battery capacity and confident hill support for most off-road riding scenarios.
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 bike is heavier than average for its type, which may make storage and moving it harder.
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.
21
Harder to lift
Poor
The bike is heavier than average for its type, so it may not be especially easy to lift.
The bike is heavier than average for its type, so it may not be especially easy to lift.
The listed weight is 25.7 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.
The larger-than-average battery capacity may add weight.
97
Excellent removable battery practicality
Excellent
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.
Because the bike is heavier than average, removing the battery can make handling and charging more convenient.
The larger battery capacity makes removable charging more useful for day-to-day convenience.
The longer charging time makes it more useful to charge the battery separately from the bike.
0
Very slow charging speed
Poor
Charging time is high compared with similar e-bikes.
Charging time is high 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 93.75.
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.
40
Some family utility limitations
Weak
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 135 kg.
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
A removable battery makes charging easier around family or utility use.
Battery capacity is strong compared with similar e-bikes, supporting utility trips.
Range is average or better compared with similar e-bikes, which supports practical daily use.
Where to buy
Priced at £4,499, the CUBE STEREO HYBRID ONE77 HPC SLX 800 offers a favourable position against similar 2025 mountain e-bikes, with strong battery range and responsive torque support. The main trade-off is a slightly slower charge time and potentially less lively handling compared to some rivals.
Compared with similar mountain bike e-bikes on Bikkerr, this model sits £1,159.07 below average
The CUBE STEREO HYBRID ONE77 HPC SLX 800 is listed at £4,499, which sits comfortably against similar mountain e-bikes from 2025, offering a price that feels reasonable for the features included. Its battery capacity and range are strong points, performing well compared with many rivals, and the torque support feels natural and responsive for off-road use. However, some similar e-bikes may offer a more lively ride for their weight, and the 6.5-hour charge time is a bit slower than what some competitors provide. For a mountain e-bike focused on trail comfort, braking confidence and battery endurance, this bike makes sense as a solid option. Riders prioritising strong hill support, reliable braking and a well-balanced package for off-road riding are likely to see the value here. The trade-off in charging time and potential liveliness of the ride may be worth considering depending on how often and where the bike is used.
We reach this value score by combining the bike’s price, specification, performance data and comparison against similar e-bikes in our database.
62
The listed price is GBP 4,499.
The bike appears to save around GBP 164 versus the average.
Range is strong compared with similar e-bikes.
Battery capacity is strong compared with similar e-bikes.
Same power22 miles less rangeSame battery0 kg heavierSame gears
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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 bike is heavier than average for its type.
The calculated power-to-weight score is 9.73.
0
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 bike is heavier than average for its type.
The calculated power-to-weight score is 9.73.
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 average or better compared with similar e-bikes, which supports commuting practicality.
Charging time is longer than average, which may be less convenient for daily use.
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.
The bike is heavier than average for its type, which may make daily handling less convenient.
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 bike is heavier than average for its type.
The calculated power-to-weight score is 9.73.
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 bike is heavier than average for its type, which may make storage and moving it harder.
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.
0
Very slow charging speed
Charging time is high compared with similar e-bikes.
Charging time is high compared with similar e-bikes.
The quoted charging time is long in absolute terms.
11
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.
Battery capacity is average or better for this type of e-bike, supporting everyday powered accessories.
21
Harder to lift
The bike is heavier than average for its type, so it may not be especially easy to lift.
The bike is heavier than average for its type, so it may not be especially easy to lift.
The listed weight is 25.7 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.
The larger-than-average battery capacity may add weight.
E-system & battery comparison
Motor Power
250 watts
▼ 190 W below average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
9.73 W/kg
▼ 11 W/kg below average
Battery Capacity
800 Wh
▲ 169 Wh above average
Claimed Max Range
75 miles
▲ 14 miles above average
Charge Time
6h 30m
▲ 75 mins slower than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
Yes
Motor Name
Bosch Performance Line CX Smart System
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 rough terrain. Next to similar models, it provides a solid level of assistance but may feel less punchy or lively compared to some heavier, more powerful e-bikes in the same category. The torque and cadence sensor should help maintain control and responsiveness, especially on technical trails or when accelerating out of corners. While it may not deliver the most aggressive motor punch, the assistance should be well-suited for riders looking for a reliable, smooth ride on varied off-road terrain without expecting extreme power output.
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 mountain bike is well-suited for long off-road rides, thanks to its high battery capacity and smooth power delivery, which should support extended trail sessions. The hydraulic disc brakes and carbon frame also contribute to control and comfort on rough terrain. However, the lower motor power and slower charging time may affect performance and convenience for frequent or demanding rides.
How does the motor perform when climbing steep trails?
The motor provides smooth support for climbing trails, but its 250W power and above-average torque may struggle with very steep inclines. While the motor should help with moderate climbs, riders may need to pedal more actively on extremely steep sections. The high-capacity battery ensures you can tackle longer trails, but the lower motor power and slower charging time could affect convenience for frequent or heavy use.
Does the bike handle rough terrain comfortably?
This mountain bike is designed for trail riding and should handle rough terrain comfortably, thanks to its hydraulic disc brakes and mountain bike frame. The high battery capacity and smooth power delivery also support longer rides on varied terrain. However, the bike's weight and lower motor power may make it slightly less responsive on very technical or steep sections.
Is the battery capacity sufficient for extended rides?
The bike has a high-capacity battery of 800 watt-hours, which should provide enough power for extended off-road rides, especially considering its strong range of 75 miles. This makes it a good choice for longer trail sessions, though the average battery efficiency means you might need to plan charging stops for very long or frequent rides.
How practical is the removable battery for charging and storage?
The removable battery is quite practical for charging and storage, as it allows you to take the battery indoors to charge it safely, which is especially useful if you're riding in wet or muddy conditions. This feature also makes it easier to store the battery separately when not in use, though you'll need to ensure you have a compatible charger and a secure place to keep it. Overall, the removable design adds convenience without compromising the bike's off-road performance.
Is this bike good value for its price compared to similar e-bikes?
This bike offers a strong balance of features for its price, especially with its high battery capacity and smooth power delivery, which are great for longer off-road rides. However, the lower motor power and slower charging time may be a drawback for riders who need quick acceleration or frequent recharging. At 25.7 kg, it's a bit heavier than average, which could make it less convenient to carry, but the carbon frame and hydraulic brakes still provide solid performance for trail riding.
How does the weight of the bike affect its usability and handling?
The bike's weight of 25.7 kg is above average for a mountain e-bike, which may make it slightly more challenging to lift or carry, especially when transporting or maneuvering in tight spaces. However, this weight is typical for a mountain bike with a carbon frame and high-capacity battery, and it should not significantly impact handling on trails. The weight is balanced by the bike's robust build and suspension, which contribute to stability and control on rough terrain.
What are the main limitations of this e-bike for serious mountain biking?
This e-bike is well-suited for trail riding, but it may struggle with very steep climbs or technical off-road sections due to its lower motor power and average battery efficiency. The 250W motor provides smooth support, but it may lack the punch needed for aggressive mountain biking. Additionally, the bike's weight of 25.7 kg could make it harder to lift or maneuver in challenging terrain, and the slower charging time might be inconvenient for frequent riders.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2025
The bike was released 1 years ago
Screen
Bosch Kiox 500 color display
Lights Included
No
Weight (inc battery): 25.7 kg
The website average for electric bikes is
22.99 kg.
This electric bike is 2.70 kg over the average. Total bike weight may vary depending on frame size.
