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.
95
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.
Multiple ride modes should help the rider manage assistance on technical trails.
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 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.
Motor power is above average, so smoothness will depend more on the sensor and controller setup.
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.
85
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 above average.
Motor power is above average for this type of e-bike.
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 22.03.
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.
83
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.
The longer charging time makes it more useful to charge the battery separately from the bike.
76
Good braking confidence
Hydraulic disc brakes should provide strong and controlled stopping power.
Overview
This Santa Cruz BULLIT X01 AXS RSV Coil / Carbon CC 2023 is a mountain bike built for trail riding, offering smooth motor support and strong hill-climbing assistance thanks to its 500W motor and 85Nm of torque. The front and rear suspension provides good comfort on rough terrain, while the removable battery adds convenience for charging and storage. However, the charging time is notably slow, and the battery efficiency is average, which may limit range on longer rides. At nearly £10,000, it's a premium option that prioritizes performance over value for money.
Best For
✓
This mountain e-bike should suit riders who prioritize off-road performance, trail control and confident hill climbing. Its strong motor power and torque, combined with front and rear suspension, make it well-suited for rough terrain and technical trails. The responsive assistance and removable battery also appeal to riders who value flexibility and natural power delivery. Riders who need a capable all-terrain e-bike with reliable braking and comfort on uneven surfaces will likely appreciate its design and features.
Who Should Avoid It
×
Riders who prioritize fast charging or need extended range for multi-day off-road adventures may want to compare alternatives. The charging time is longer than average for similar mountain e-bikes, and the battery capacity and range are only average for this category. However, the bike still suits riders who value strong hill climbing, smooth power delivery and confident trail control over these trade-offs.
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 22.7 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.
83
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.
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 longer than average for this type of e-bike.
Charging time is longer than 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 95.24.
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.
34
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 136 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.
50W less powerSame range150 Wh less battery3 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 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.
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 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 longer than average for this type of e-bike.
Charging time is longer than average for this type of e-bike.
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.
27
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.
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.
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 95.24.
30
Some lifting limitations
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 22.7 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.
34
Some family utility limitations
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 136 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.
E-system & battery comparison
Motor Power
500 watts
▲ 60 W above average
Motor Torque
85 Nm
▲ 6.5 Nm above average
Power-to-weight
22.03 W/kg
▲ 1.7 W/kg above average
Battery Capacity
630 Wh
▼ 0.9 Wh below average
Claimed Max Range
60 miles
▼ 0.5 miles below average
Charge Time
6h
▲ 45 mins slower than average
Sensor Type
Torque and Cadence Sensor
Removable Battery
Yes
Motor Name
Shimano Steps DU-EP 800
This mountain e-bike offers a strong and responsive motor setup that should feel capable and confident on technical trails. The motor support is likely to compare well against similar e-bikes, with torque and cadence sensing helping to deliver a natural and predictable ride feel. The motor should provide solid climbing support and low-speed control, making it effective for rough terrain and technical sections. The combination of torque sensing and a balanced power-to-weight ratio should contribute to smooth, responsive assistance that adapts well to trail conditions. Riders looking for a motor that feels lively and supportive on challenging mountain trails 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 challenging off-road trails?
This mountain bike is well-suited for challenging off-road trails, thanks to its strong motor and suspension system. The 500W motor and 85Nm of torque provide good hill-climbing support, while the front and rear suspension should help with comfort on rough terrain. However, the average battery efficiency and range may require more frequent charging on longer rides.
How does the motor perform when climbing steep hills?
The motor should handle steep hills effectively, thanks to its 500W power and 85Nm of torque, which are above average for mountain e-bikes. The torque and cadence sensor helps deliver smooth and controlled assistance, making climbs feel more manageable. However, the battery efficiency is average, so you may need to plan for more frequent charging on long or steep climbs.
Does the bike offer good comfort on rough and uneven terrain?
This mountain e-bike is designed for rough and uneven terrain, with front and rear suspension to help absorb shocks and improve comfort on trails. The hydraulic disc brakes, specifically the SRAM Code RSC, should provide confident stopping power even on loose or wet surfaces, which is important for maintaining control on rough terrain.
Is the battery capacity sufficient for long rides or will I need to charge frequently?
The battery capacity of 630 watt-hours should provide enough power for most long rides, especially considering the bike's mountain e-bike design and typical trail use. With a range of around 60 miles on a single charge, you should be able to cover extended distances without needing to recharge frequently. However, charging time is longer than average for this type of e-bike, so you may need to plan for longer charging sessions if you're riding multiple days in a row. The removable battery also adds convenience for charging on the go or at home.
How does the charging time compare to other mountain e-bikes?
The charging time for this mountain e-bike is 6 hours, which is longer than average for similar models. This means you may need to plan your rides around charging schedules, especially if you're out on longer trails. However, the removable battery offers flexibility, allowing you to charge it separately from the bike if needed.
Is this bike a good value for its price compared to similar models?
This bike offers strong performance for a mountain e-bike, with a motor and torque that compare well to similar models, and a range that is in line with expectations. However, the price is higher than most similar e-bikes, which may make it less of a value for buyers looking for a more affordable option. The removable battery and hydraulic disc brakes add practicality, but the average battery efficiency and capacity may require more frequent charging on longer rides.
How easy is it to handle and lift the bike due to its weight?
The bike weighs 22.7 kg, which is in line with similar mountain e-bikes, so it should feel manageable for most riders on trails. The removable battery adds some convenience for charging and storage, but the overall weight may make lifting the bike more challenging, especially when carrying it up stairs or onto a vehicle. If you're frequently moving the bike manually, you may want to consider additional support like a bike lift or rack.
What are the main trade-offs or limitations of this bike?
This bike is well-suited for off-road trails and offers strong hill climbing support, but it has a few trade-offs. The charging time is longer than average for mountain e-bikes, which may be inconvenient if you need to recharge quickly. It also lacks folding capabilities, so storage will depend on its size and weight. Additionally, the chain drive system may require more frequent cleaning and maintenance compared to belt drives.
eBike Overview
eBike Type: Mountain Bike
The style of riding intended for this bike
Released:
2023
The bike was released 3 years ago
Screen
None
Lights Included
No
Weight (inc battery): 22.7 kg
The website average for electric bikes is
22.99 kg.
This electric bike is 0.3 kg under the average. Total bike weight may vary depending on frame size.
Sizing & Geometry
Min / Max Rider Height
M: 165–175 cm, L: 175–185 cm, XL: 185–193 cm, XXL: 193–201 cm
Folded Dimensions
Unknown
Wheel & Tire Details
Wheelset Name
Reserve Carbon rims (30 HD 29" front / 31 DH 27.5" rear) laced to Industry Nine 1/1 hubs
