Torque and cadence sensing adds value by improving assist control and ride feel.
A removable battery adds practical value for charging and storage.
The included display or control unit adds useful everyday value.
Front and rear suspension adds component value, especially for comfort or off-road use.
The bike has 10 or more gears, which adds useful drivetrain range.
The bike appears to be a recent or current model.
The release age is recent, which supports value if pricing is competitive.
90
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 longer charging time makes it more useful to charge the battery separately from the bike.
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.
87
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 27.5-inch wheel size should help balance control and manoeuvrability.
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.
86
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 mountain bike design should be better suited to controlled descending.
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 aluminium, which gives useful comfort and build context.
83
Good 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 27.5-inch wheel size should balance manoeuvrability and trail control.
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.
Overview
The Polygon SISKIU HE (SHIMANO Di2) 2024 is a mountain bike designed for off-road trails, offering smooth motor support and a comfortable ride over rough terrain. Its efficient battery provides a useful range for most adventures, and the removable battery adds convenience for charging and storage. The hydraulic disc brakes offer confident stopping power, while the front and rear suspension improves comfort on uneven surfaces. However, the bike's lower motor punch and slower charging time may affect performance on steep climbs or long rides, and its weight makes it slightly less easy to lift and carry.
Best For
✓
This mountain e-bike should suit riders who prioritize off-road performance and comfort on rough terrain. Its strong suspension, confident braking, and smooth power delivery make it a solid choice for trail riding and longer adventures. The removable battery and good range also appeal to riders who need flexibility and reliability for extended trips. Riders who value a natural riding feel and efficient use of battery capacity will likely appreciate its design and capabilities.
Who Should Avoid It
×
Riders seeking the most aggressive motor punch or quick turnaround charging may want to compare alternatives, as this bike has a lower motor power and slower charging speed compared with similar mountain e-bikes. Riders who frequently tackle very steep hills or need to carry significantly heavier loads may also find stronger options available in the same category. However, this bike still offers solid off-road capability, smooth power delivery and good value for money, making it a strong choice for many mountain e-bike riders.
Ownership considerations
These points highlight practical ownership factors such as maintenance, storage, charging, everyday
handling and bad-weather usability.
30
Some maintenance considerations
Weak
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 aluminium frame material is practical for everyday use and general maintenance.
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 kg.
The aluminium frame material is a practical lightweight choice for many e-bikes.
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.
90
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 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.
100
Excellent battery efficiency
Excellent
The bike appears to get strong range from its battery size.
The bike appears to get strong range from its battery size.
The calculated range per battery unit is 176.19.
Range is strong despite only average or smaller battery capacity, which supports the efficiency result.
62
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.
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 aluminium, which gives useful durability and maintenance context.
25
Limited family utility practicality
Poor
The listed maximum payload is practical for lighter utility use.
The listed maximum payload is practical for lighter utility use.
The listed maximum payload is 120 kg.
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
A removable battery makes charging easier around family or utility use.
Range is average or better compared with similar e-bikes, which supports practical daily use.
Same power1 miles less range130 Wh less battery2 kg lighter1 fewer 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 10.
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 10.
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.
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 10.
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 kg.
The aluminium frame material is a practical lightweight choice for many e-bikes.
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.
E-system & battery comparison
Motor Power
250 watts
▼ 190 W below average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
10.00 W/kg
▼ 10 W/kg below average
Battery Capacity
630 Wh
▼ 0.9 Wh below average
Claimed Max Range
111 miles
▲ 50 miles above average
Charge Time
10h
▲ 285 mins slower than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
Yes
Motor Name
Shimano STEPS DU-EP 600 (EP 6)
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 provides a solid level of assistance but may feel slightly less punchy or lively compared to some heavier, more powerful e-bikes in the same category. The torque sensing should help riders maintain control on rough terrain, while the motor’s efficiency means it can support longer rides without draining the battery too quickly. The assistance should be smooth and responsive, with predictable power delivery that works well with the bike’s suspension and trail-focused design. Riders looking for a reliable, efficient motor that supports technical trail riding and longer adventures should 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 mountain bike is well-suited for long off-road rides, thanks to its front and rear suspension that improves comfort on rough terrain. The bike offers a good range of 111 miles, which should cover most trail adventures, and the removable battery adds convenience for charging. However, the motor power is on the lower side for this type of bike, which may make steep climbs more challenging, and the bike's weight could make it slightly harder to carry or lift when needed.
How does the motor perform when climbing steep trails?
The motor provides smooth and controlled assistance when climbing steep trails, thanks to the torque and cadence sensor. However, the motor power is below average for similar e-bikes, which may make climbing very steep trails feel more effortful. The torque is above average, which helps with hill climbing, but the overall power-to-weight ratio is low, so you may need to pedal more actively on very steep inclines.
Does the bike offer good comfort on rough terrain?
Yes, the bike should offer good comfort on rough terrain, thanks to its front and rear suspension system, which is designed to absorb shocks and improve stability over uneven surfaces. The tire size and tread pattern also contribute to better grip and control on rough roads. However, while it's well-suited for trails and off-road use, it may not be the most efficient choice for daily urban commuting due to its mountain bike design.
Is the battery efficient enough for regular use?
The battery should be efficient enough for regular use, especially considering the range of 111 miles, which is above average for similar mountain e-bikes. This suggests the bike can handle most off-road trips without needing frequent recharging. However, the charging time is above average at 10 hours, so you may need to plan ahead for longer trips or have access to a charger when needed.
How practical is the removable battery for charging and storage?
The removable battery is practical for charging and storage, offering flexibility for users who need to charge the battery separately or store it away from the bike. This feature is especially useful for trail riders who may need to carry spare batteries or charge them at home. However, the charging time is above average, so it may take longer to recharge the battery compared to similar e-bikes.
Is this bike a good value option compared to similar e-bikes?
This bike offers strong value for money compared to similar e-bikes, especially considering its price point and the features included. The range is above average for a mountain e-bike, and the battery efficiency is excellent, which means you can ride longer on a single charge. While the motor power is below average, it should still provide adequate support for most trail conditions, and the Shimano hydraulic disc brakes offer confident stopping power on rough terrain.
How does the weight of the bike affect its handling and portability?
The bike's weight impacts how it feels when riding and carrying it. A heavier bike may feel less nimble on technical trails but offers more stability at higher speeds. At 11.8 kg, it's a typical weight for a mountain e-bike, which should balance trail performance with portability. The weight also affects how easy it is to lift when parking or transporting, though the removable battery helps with charging and storage convenience.
What are the main limitations of this bike for serious off-road use?
This bike is designed for mountain biking and offers good off-road capability with front and rear suspension, hydraulic disc brakes, and suitable tire sizes for trails. However, it may not be ideal for very technical or extreme off-road conditions due to its category focus on general mountain biking rather than specialized trail performance. The battery range is above average for similar e-bikes, but charging time is longer than some competitors, which could be a consideration for frequent off-road use.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2024
The bike was released 2 years ago
Screen
Cadence Sensor
Lights Included
No
Weight (inc battery): 25 kg
The website average for electric bikes is
22.99 kg.
This electric bike is 2.00 kg over the average. Total bike weight may vary depending on frame size.
Sizing & Geometry
Min / Max Rider Height
SM: 157–168 cm, MD: 168–178 cm, LG: 178–185 cm, XL: 185–193 cm
Folded Dimensions
Unknown
Wheel & Tire Details
Wheelset Name
Polygon Entity XL 2 double-wall aluminium wheels with Shimano hubs
