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.
94
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.
With stronger motor output, clear controls and ride modes become more useful.
92
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.
Power-to-weight is strong, which should help with technical sections that need quick support.
Multiple ride modes should help the rider manage assistance on technical trails.
89
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.
Power-to-weight is strong, which should help when controlling the bike over uneven trail sections.
86
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.
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.
82
Good hill climbing support
Torque is above average for this type of e-bike.
Torque is above average for this type of e-bike.
Power-to-weight is above average.
Motor power is high 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 23.44.
76
Good braking confidence
Hydraulic disc brakes should provide strong and controlled stopping power.
74
Good power-to-weight ratio
Power-to-weight is above average for this type of e-bike.
Power-to-weight is above average for this type of e-bike.
Motor power is high for this type of e-bike.
The bike is heavier than average for its type.
The calculated power-to-weight score is 23.44.
Overview
The Polygon COLLOSUS N8E 2023 is a mountain bike built for off-road adventures, offering strong motor support and good hill climbing ability thanks to its 600W motor and 85Nm torque. With front and rear suspension, it handles rough terrain and uneven surfaces comfortably, making it a solid choice for trail riding. The removable battery adds convenience for charging and storage, though the bike's weight makes it a bit harder to lift, and its average battery efficiency may limit range on longer rides. Hydraulic disc brakes provide confident stopping power, but the charging time is average for its class.
Best For
✓
This mountain e-bike should suit riders who enjoy trail riding and off-road adventures, particularly those looking for a balance between performance and comfort on rougher terrain. Its strong hill climbing support and responsive motor make it a solid choice for riders prioritising control and assistance on challenging trails. The front and rear suspension, combined with hydraulic disc brakes, should provide confidence and comfort for those tackling uneven surfaces. Riders who appreciate the flexibility of a removable battery for easier charging and storage may also find this feature particularly useful.
Who Should Avoid It
×
Riders planning long off-road adventures may want to compare alternatives, as the range is below average for similar mountain e-bikes, which could limit extended rides. Riders carrying heavier loads beyond the 120 kg payload may also find utility-focused alternatives more suitable. However, the bike still offers strong trail control and excellent off-road capability for most mountain biking needs.
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.
15
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 25.6 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.
The 29-inch wheel size can make the bike more awkward to lift or store.
86
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.
23
Very slow charging speed
Poor
Charging time is average for this type of e-bike.
Charging time is average for this type of e-bike.
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 60.32.
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.
19
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.
Same power7 miles more rangeSame battery2 kg lighterSame gears
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Potential limitations
Areas where this e-bike may be less strong based on its specs and comparisons.
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 low compared with similar e-bikes, which may limit commuting flexibility.
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.
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
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.
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.
15
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 25.6 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.
The 29-inch wheel size can make the bike more awkward to lift or store.
19
Limited family utility practicality
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.
20
Poor range-to-weight balance
The bike is heavier than average, which limits range-to-weight balance.
The bike is heavier than average, which limits range-to-weight balance.
Battery efficiency appears broadly average.
The calculated range per kg is 1.48.
The calculated range per battery unit is 60.32.
23
Very slow charging speed
Charging time is average for this type of e-bike.
Charging time is average for this type of e-bike.
The quoted charging time is long in absolute terms.
29
Low battery efficiency
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 60.32.
E-system & battery comparison
Motor Power
600 watts
▲ 160 W above average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
23.44 W/kg
▲ 3.1 W/kg above average
Battery Capacity
630 Wh
▼ 0.9 Wh below average
Claimed Max Range
38 miles
▼ 23 miles below average
Charge Time
5h
▼ 15 mins faster than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
Yes
Motor Name
Shimano STEPS DU-EP 801 (EP 801)
This mountain e-bike offers a strong and responsive motor setup that should feel capable and lively on trails, with good support for climbing and low-speed control. The motor output and torque should compare well against similar e-bikes in this category, providing a balance between power and predictability. The torque and cadence sensor should help the assistance feel more natural, especially on rough terrain or when accelerating out of technical sections. The power-to-weight balance should make the motor feel more responsive in real-world riding, though the range may be more limited than some similar models, which could affect longer rides. Riders looking for a capable motor that supports trail riding and climbing without sacrificing control 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 bike is well-suited for off-road trails, thanks to its mountain bike design, front and rear suspension, and strong motor support for climbing. However, its average battery efficiency and lower range of 38 miles may limit how far you can ride on a single charge, especially on longer off-road adventures. The hydraulic disc brakes provide confident stopping power, but the bike's weight of 25.6 kg might make it harder to carry or lift when needed.
How does the motor perform when climbing steep trails?
The motor should provide strong support when climbing steep trails, thanks to its 600W power and 85Nm of torque, which are above average for similar mountain e-bikes. This should help you tackle challenging terrain with confidence, though you may need to manage your speed and battery usage carefully, as the range is 38 miles. The torque and cadence sensor also ensures responsive assistance as you pedal uphill.
Does the bike handle rough terrain comfortably?
The Polygon COLLOSUS N8E 2023 is built for rough terrain, with front and rear suspension that should significantly improve comfort on uneven surfaces. The 29-inch tires and hydraulic disc brakes add to its trail control and stopping confidence, making it a solid choice for off-road riding. While it's not optimized for daily commuting, it should handle rough terrain comfortably for extended trail rides.
Is the battery efficient enough for regular trail use?
The battery should be adequate for regular trail use, offering a range of 38 miles on a single charge. However, the range is below average for similar mountain e-bikes, so you may need to plan for more frequent charging on longer or more demanding trails. The battery is removable, which makes it easier to charge at home or on the go, adding to its practicality for trail riding.
How practical is the removable battery for charging and storage?
The removable battery is a practical feature for charging and storage, allowing you to charge it separately from the bike or store it safely when not in use. This flexibility can be especially useful if you need to recharge the battery at home or work without having to move the entire bike. However, since the battery capacity is average for similar e-bikes, you may need to plan your rides around charging intervals, especially on longer off-road trips.
Is this bike good value for its price compared to similar e-bikes?
This bike offers good value for its price compared to similar e-bikes, especially considering its strong motor power and torque, which are above average for mountain e-bikes. While the range is slightly below average, the price is favourable, and the removable battery adds practicality for charging and storage. The hydraulic disc brakes and chain drive also provide reliable performance for off-road use, though the chain may require more maintenance than other drive types.
How does the weight of the bike affect its portability and handling?
The bike's weight impacts how easily it can be carried and maneuvered, especially when navigating rough terrain or lifting it for storage. A heavier bike may feel less agile on technical trails but is generally well-balanced for mountain biking. The weight also affects how the bike handles during climbs and descents, though the powerful motor and suspension help manage these challenges effectively.
What are the main compromises of this bike for everyday use?
The main compromises for everyday use include limited storage practicality due to the non-folding frame and the bike's heavier weight, which may make it harder to lift. While the charging time is average for this type of e-bike, the range is below average for similar mountain e-bikes, which could mean more frequent charging on longer rides. However, the bike's strong motor power and torque make it well-suited for off-road trails and climbing, which is a key focus for this category.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2023
The bike was released 3 years ago
Screen
Shimano SC-EN 600
Lights Included
No
Weight (inc battery): 25.6 kg
The website average for electric bikes is
22.99 kg.
This electric bike is 2.60 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
Entity XL 3 Tubeless-Ready double-wall alloy rims laced to Shimano hubs (15 x 110 mm front, 12 x 148 mm rear boost spacing)
Wheelset Size
29 inch
Tires
SCHWALBE MAGIC MARY EVO 29"x2.60" 622x65 SUPER GRAVITY TLE ADDIX SOFT
Frame Info
Frame Material
Aluminium
Suspension Type
Front and Rear suspension
Foldable Frame
No
Max Payload
120 kg (264.6 lbs)
Drivechain Details
Groupset details
XT
Drivechain type
Chain drive
Shifters
Shimano Deore XT SL-M 8100-IR Rapidfire Plus (I-SPEC EV clamp)
Amount of gears
12 Gears
Rear Derailleur
Shimano Deore XT RD-M 8100-SGS Shadow Plus
Front Derailleur
None
Cassette
Shimano Deore M 6100 Microspline (12-speed, 10-51 T cog range)
Cranks
Shimano Shimano EM 600 Aluminium E-Bike crank arms (165 mm length) with a 34 T chainring
Chain
KMC X-12 (E-Bike optimized)
Bottom Bracket
Integrated (The spindle runs through the internal bearings of the Shimano EP 801 motor unit)
Brakes
Brakes
Shimano XT Hydraulic Disc
Brake Type: Hydraulic Disc Brake
Hydraulic operated discs brakes (Very good)
Brake Rotors
203 mm Shimano Center Lock rotors
Shifters
Shimano Deore XT SL-M 8100-IR Rapidfire Plus (I-SPEC EV clamp)
