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 power-to-weight ratio
Power-to-weight is high compared with similar e-bikes.
Power-to-weight is high compared with similar e-bikes.
Motor power is high for this type of e-bike.
The calculated power-to-weight score is 25.21.
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.
100
Excellent battery efficiency
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 147.5.
98
Excellent 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 high compared with similar e-bikes.
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 calculated power-to-weight score is 25.21.
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.
Power-to-weight is strong, which should help with technical sections that need quick support.
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.
83
Good acceleration support
Motor power is high compared with similar e-bikes.
Motor power is high compared with similar e-bikes.
Torque is above average for this type of e-bike.
Power-to-weight is high compared with similar e-bikes.
Torque-sensing assistance should make the motor response feel more natural.
The calculated power-to-weight score is 25.21.
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 Polygon COLLOSUS TE 8 AXS is a powerful mountain bike built for tackling rough trails with confidence. Its 600W motor and 85Nm of torque provide strong hill climbing support, while the 800Wh battery offers a long range that makes good use of its capacity. The carbon fiber frame and full suspension make it feel lively and well-suited for off-road adventures, though its weight means it's not the easiest to lift. The motor's assistance feels smooth, but the non-removable battery means you'll need to keep the whole bike near a charger when needing to top up.
Best For
✓
This mountain e-bike should suit riders who prioritize off-road performance and want a capable trail companion. Its strong motor power, high torque and excellent battery capacity make it well-suited for challenging terrain and longer rides compared to similar e-bikes. The hydraulic disc brakes and suspension system also provide confidence and comfort on rough trails. Riders who value a responsive and powerful ride with good range will likely appreciate its capabilities for extended trail sessions.
Who Should Avoid It
×
Riders who prioritize easy battery access or need to charge the bike frequently without moving the whole unit may want to compare alternatives. The battery is not removable, which could be a limitation for those who need to recharge it without transporting the entire bike. Additionally, while the power delivery is functional, some riders may find it less refined compared to similar mountain e-bikes with more advanced motor tuning. However, the bike still suits riders focused on strong off-road performance, long range, and robust hill climbing support.
Ownership considerations
These points highlight practical ownership factors such as maintenance, storage, charging, everyday
handling and bad-weather usability.
16
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.
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.
A full-suspension mountain bike format is usually bulkier and harder to store indoors.
21
Harder to lift
Poor
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 23.8 kg.
The carbon frame material should help keep weight down.
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.
13
No removable battery advantage
Poor
The battery does not appear to be removable, so the whole bike may need to be near a charging point.
The battery does not appear to be removable, so the whole bike may need to be near a charging point.
This bike type can be larger or heavier, so a removable battery adds useful charging flexibility.
The larger battery capacity makes removable charging more useful for day-to-day convenience.
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.
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 147.5.
12
Limited everyday equipment
Poor
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 carbon fiber, which gives useful durability and maintenance context.
20
Limited family utility practicality
Poor
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
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.
Same power43 miles less range80 Wh less battery1 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 average or better compared with similar e-bikes, which supports commuting practicality.
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 non-removable battery can make charging less flexible.
Hydraulic disc brakes are a strong practical feature for daily riding.
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.
A full-suspension mountain bike format is usually bulkier and harder to store indoors.
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.
Battery capacity is average or better for this type of e-bike, supporting everyday powered accessories.
12
Limited everyday equipment
Hydraulic disc brakes are useful equipment for confident daily riding.
13
No removable battery advantage
The battery does not appear to be removable, so the whole bike may need to be near a charging point.
The battery does not appear to be removable, so the whole bike may need to be near a charging point.
This bike type can be larger or heavier, so a removable battery adds useful charging flexibility.
The larger battery capacity makes removable charging more useful for day-to-day convenience.
16
More maintenance likely
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.
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.
20
Limited family utility practicality
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
Hydraulic disc brakes are useful when carrying children, shopping or heavier loads.
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.
21
Harder to lift
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 23.8 kg.
The carbon frame material should help keep weight down.
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
600 watts
▲ 160 W above average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
25.21 W/kg
▲ 4.9 W/kg above average
Battery Capacity
800 Wh
▲ 169 Wh above average
Claimed Max Range
118 miles
▲ 57 miles above average
Charge Time
4h
▼ 75 mins faster than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
No
Motor Name
Bosch Performance Line CX Gen 5
This mountain e-bike offers a strong motor output that should feel lively and capable on trails, with good support for climbing and low-speed technical riding. Against similar e-bikes, the motor's power and torque should provide a responsive and confident ride, especially when tackling rough terrain or steep inclines. The torque and cadence sensor setup should help balance natural pedaling feel with predictable assistance, making it easier to control the bike in varied trail conditions. The motor's power-to-weight ratio should contribute to a more dynamic riding experience, and the efficient battery use means the assistance should last well for longer rides. Riders looking for a capable and responsive motor that supports aggressive trail riding 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?
Yes, this bike is well-suited for long off-road rides, thanks to its powerful 600W motor and 85Nm of torque, which provide strong support for climbing and navigating rough trails. The 800Wh battery offers a long range, making it ideal for extended mountain biking sessions. However, the non-removable battery means you'll need to keep the whole bike near a charger when needing to top up.
How does the motor perform when climbing steep trails?
The motor should handle steep trails effectively, thanks to its 600W power and 85Nm of torque, which are above average for similar mountain e-bikes. The power-to-weight ratio is also strong, which helps with climbing performance. While the motor may not feel perfectly refined, the torque and cadence sensor should provide reasonably smooth assistance when tackling challenging terrain.
Does the bike offer good comfort on rough terrain?
The bike should offer good comfort on rough terrain, thanks to its front and rear suspension, which should help absorb shocks and improve stability over uneven surfaces. The 29-inch wheels and tubeless-ready tires also contribute to a smoother ride on trails. While it's designed for mountain biking, the comfort on rough roads may not be as refined as on dedicated trail surfaces.
Is the battery capacity sufficient for extended mountain biking sessions?
The battery capacity of 800 watt-hours is above average for similar mountain e-bikes, and the range of 118 miles suggests strong efficiency, which should support extended mountain biking sessions. However, the battery is not removable, so charging may require the whole bike to be near a power source. This is important to consider for multi-day trips or remote trail access.
How practical is this bike for daily use and charging?
This bike is practical for daily use on trails and rough terrain, with a range of 118 miles that should cover most off-road adventures. The battery charges in 4 hours, which is faster than average for similar e-bikes, but since the battery isn't removable, you'll need to keep the whole bike near a charging point. This makes it more suited for regular use in a fixed location rather than frequent on-the-go charging.
Who is this bike best suited for?
This bike is best suited for experienced mountain bikers looking for a powerful e-bike for off-road trails and challenging terrain. With above-average motor power, torque, and battery capacity, it offers strong hill climbing support and a long range, making it ideal for extended rides. However, the non-removable battery may require planning for charging locations, and its higher price point means it's best for serious off-road enthusiasts rather than casual riders.
Is this bike good value for its price compared to similar e-bikes?
This bike offers strong value for its price, especially considering its above-average range, battery capacity, and motor power compared to similar mountain e-bikes. The power-to-weight ratio is also high, which should help with climbing and off-road performance. However, the non-removable battery may be a consideration for users who need flexibility in charging locations, and the chain drive requires more maintenance than some alternatives.
What are the main compromises or trade-offs of this bike?
The main compromises of this bike include limited storage practicality due to its non-folding frame, the need to charge the whole bike rather than just the battery, and the potential for more maintenance with its chain drive system. While the chain drive is reliable and serviceable, it requires more frequent cleaning and lubrication compared to a belt drive. These factors may affect convenience for some riders, especially those who need easy storage or minimal maintenance.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2025
The bike was released 1 years ago
Screen
Unknown
Lights Included
No
Weight (inc battery): 23.8 kg
The website average for electric bikes is
22.99 kg.
This electric bike is 0.80 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 MT 9 Alloy Double Wall tubeless-ready rims laced via stainless 14 G spokes to DT Swiss 370 Hybrid Classic hubs
Wheelset Size
29 inch
Tires
MAXXIS DISSECTOR 29"x2.40" 622x61 TUBELESS READY
Frame Info
Frame Material
Carbon Fiber
Suspension Type
Front and Rear suspension
Foldable Frame
No
Max Payload
Unknown
Drivechain Details
Groupset details
Eagle AXS, GX Eagle Transmission
Drivechain type
Chain drive
Shifters
SRAM EC AXS Pod Controller (1 x 12-speed wireless trigger)
Amount of gears
12 Gears
Rear Derailleur
SRAM GX Eagle T-Type AXS
Front Derailleur
None
Cassette
SRAM XS-1275-A 10-52 T
Cranks
Praxis EC Type 2 e-bike specific crankarms paired with a 34 T Praxis T-Type chainring
Chain
SRAM GX Eagle T-Type Flattop
Bottom Bracket
Integrated (the spindle and system bottom bracket are enclosed entirely within the internal assembly of the Bosch mid-drive motor shell)
Brakes
Brakes
Magura MT 7 Pro
Brake Type: Hydraulic Disc Brake
Hydraulic operated discs brakes (Very good)
Brake Rotors
203 mm rotors
Shifters
SRAM EC AXS Pod Controller (1 x 12-speed wireless trigger)
