Now available with the latest Bosch 2.0 update - delivering up to 120 Nm of torque
Cube Stereo Hybrid One77 HPC AT 800 2027
Full Power. Total Control.
The Cube Stereo Hybrid ONE77 HPC AT 800 is a premium full-power electric mountain bike built for technical enduro trails, steep descents and demanding days in the hills. Its lightweight High Performance Composite frame combines 170mm of front and rear suspension travel with a mixed-wheel configuration, creating a stable and confidence-inspiring platform for rough, fast and challenging terrain.
A Bosch Performance Line CX motor and integrated 800Wh PowerTube battery provide the power and capacity required for sustained climbing and longer adventures. Fox Factory suspension, Shimano XTR Di2 electronic gearing and Bosch ABS Pro-assisted XTR brakes give the AT model a high-end specification designed for riders who want maximum control and precision.
Bosch Performance Line CX Gen 5
The Bosch Performance Line CX motor delivers up to 120Nm of torque, 750 watts of peak power and support of up to 600%. Its substantial output provides the assistance required for steep gradients and technical climbs, while responsive power delivery helps the rider manage traction across loose, rocky and root-covered surfaces.
Eco mode prioritises efficiency, Tour+ automatically adjusts support as riding conditions change, and eMTB mode delivers progressive assistance for technical off-road riding. Turbo provides maximum support for demanding climbs and rapid acceleration.
Compatible motor characteristics can also be personalised through the Bosch eBike Flow app. Riders can prioritise maximum climbing assistance or reduce the output to create a more natural ride feel and conserve battery capacity.

Removable 800Wh Battery
An integrated Bosch PowerTube 800Wh battery provides the capacity needed for longer rides, sustained climbing and repeated enduro laps. Its position within the down tube maintains the bike’s clean appearance while helping to keep weight central within the frame.
Actual range will depend on assistance mode, elevation, terrain, rider weight and riding conditions. The large 800Wh capacity allows the rider to use the motor’s stronger assistance modes more frequently without needing to conserve power throughout the entire ride.

Bosch Kiox 400C Display
The Bosch Kiox 400C colour display is integrated directly into the top tube, creating an uncluttered cockpit while protecting the screen from impacts. It clearly presents essential information including speed, battery charge, assistance mode, estimated range and ride data.
A compact Bosch Mini Remote allows assistance modes and display screens to be controlled without taking a hand away from the handlebar. As part of the Bosch Smart System, the display also connects with the eBike Flow app for system updates, ride recording and personalisation of compatible settings.

Cube Stereo Hybrid One77 HPC AT 800 2027 - IN DEPTH
Fox Factory Suspension
A 170mm Fox 38 Float Factory fork uses the GRIP X2 damper to provide extensive high-speed and low-speed compression and rebound adjustment. This allows its performance to be tuned precisely for the rider, terrain and preferred handling characteristics.
The stiff 38mm chassis maintains steering accuracy through rough trail sections, steep terrain and hard compressions. Kashima-coated upper tubes help reduce friction, contributing to a smooth and responsive suspension action.
The fork is paired with a Fox Float X2 Factory rear shock, creating a balanced 170mm suspension platform. Its high-volume air spring and advanced damping provide sensitivity over smaller trail chatter alongside the support and control required for larger impacts, repeated hits and faster descents.
Shimano XTR Di2 Drivetrain
Shimano XTR Di2 provides fast, precise and consistent electronic 12-speed shifting. The system operates without a conventional mechanical gear cable, creating a clean cockpit while reducing the effect that cable contamination or stretching can have on shifting performance.
A wide-range 10-51T cassette provides the low gearing required for steep technical climbs alongside efficient ratios for faster trail sections. The drivetrain is paired with an ACID MTB Hybrid Pro crankset, Newmen Pin and 36-tooth chainring.
Electronic operation makes gear changes quick and consistent throughout the ride, including across rough terrain where accurate shifting is particularly important.
Shimano XTR Brakes and Bosch ABS Pro
Shimano XTR BR-M9220 four-piston hydraulic disc brakes provide the strong and controlled braking required for steep descents and technical enduro riding. Their substantial braking force is balanced by usable modulation, allowing the rider to make precise speed adjustments as grip and trail conditions change.
Bosch ABS Pro supports the front brake by monitoring wheel behaviour and regulating braking pressure during hard braking. The system helps reduce the risk of front-wheel lock-up, improving control across loose, steep and unpredictable surfaces while still allowing assertive braking.
Geometry

| Slack/Moderate | S | M | L | XL |
|---|---|---|---|---|
| Seat tube | 370 | 405 | 420 | 480 |
| Top Tube Horizontal | 572 / 573 | 597 / 598 | 625 / 626 | 659 / 661 |
| Seat angle | 76.7° / 76.5° | 76.7° / 76.5° | 76.7° / 76.5° | 76.7° / 76.5° |
| Head tube angle | 63.8° / 64.4° | 63.8° / 64.4° | 63.8° / 64.4° | 63.8° / 64.4° |
| Chainstays | 443 | 443 | 443 | 443 |
| Head tube | 103 | 103 | 115 | 130 |
| Wheelbase | 1213 / 1206 | 1238 / 1231 | 1269 / 1261 | 1305 / 1297 |
| BB-Height to Hub | 13 | 13 | 13 | 13 |
| Protrusion height - 80mm | 758 | 754 | 753 | 752 |
| Reach | 427 / 425 | 452 / 450 | 477 / 475 | 506 / 505 |
| Stack | 635 / 637 | 635 / 637 | 645 / 648 | 659 / 661 |
FAQs: Cube Stereo Hybrid One77 HPC AT 800 2027
Basics
What size bike do I need?
What is Frame Protection and is it worth fitting it to the Stereo?
What is tubeless setup and can the Stereo be set up tubeless?
What equipment & info will the bike arrive with?
Is it possible to see the Stereo in your showroom & is it possible to have a test ride or demo it?
What type of bike is the Stereo and what is it designed for?
What type of terrain is the Stereo ideally suited towards?
Can the Cube Stereo Hybrid One77 HPC AT 800 2027 get wet and muddy?
How should you clean & maintain the Cube Stereo Hybrid One77 HPC AT 800 2027?
Can you tell me about the Cube brand?
I'm new to riding, what essential bits of kit do I need to get going?
Where can I ride the Cube Stereo Hybrid One77 HPC AT 800 2027?
Technical
Where can I find all of the major components that come on the bike?
Can you fit a water bottle on the Cube Stereo Hybrid One77 HPC AT 800 2027?
What warranty comes on the Cube Stereo Hybrid One77 HPC AT 800 2027?
Does the Cube Stereo Hybrid One77 HPC AT 800 2027 come with pedals?
Can I get hold of spare / replacement parts easily for the Cube Stereo Hybrid One77 HPC AT 800 2027?
Are electric bikes legal? How fast can the Cube Stereo Hybrid One77 HPC AT 800 2027 go?
Do I need a license to ride the Cube Stereo Hybrid One77 HPC AT 800 2027 in the UK?
Can I add upgrades to the bike?
Electric / Battery
How should I store the bike?
What is the battery lifespan on a Cube Stereo Hybrid One77 HPC AT 800 2027?
Are Lithium-Ion batteries safe?
Is the internal battery removable on the Cube Stereo Hybrid One77 HPC AT 800 2027?
What is the expected range of the battery on the Cube Stereo Hybrid One77 HPC AT 800 2027?
What is a range extender and can you add one to the Cube Stereo Hybrid One77 HPC AT 800 2027?
Does the bike arrive fully charged and ready to go?
How to charge the battery on the Cube Stereo Hybrid One77 HPC AT 800 2027?
How long does it take to charge the battery?
How is the motor protected ?
Purchasing
Why choose MTB Monster?
Do you offer 0% finance for the Cube Stereo Hybrid One77 HPC AT 800 2027?
Do you accept Cycle To Work vouchers? How does it work?
I'm still sorting my payment method, can I reserve a bike?
The bike is not yet in stock, can I pre-order one?
How will the bike be delivered & what are the setup requirements?
What are the delivery options?
Can I collect the bike in the store?
I still have more questions, can I speak to someone?
- FRAME:
- C:62® Monocoque Advanced Twin Mold Technology, Aluminium 6061 T6 Rear Triangle, Efficient Trail Control, FSP 4-Link, Agile Trail Geometry, Boost 148, UDH™, Full Integrated Battery, Advanced Internal Cable Routing
- FRAME MATERIAL:
- Carbon Main Frame / Alloy Rear Triangle
- FORK BRAND:
- Fox
- FORK:
- Fox 38 Float Factory GRIPX2, Tapered, 15x110mm, E-Bike Optimized, 170mm
- FORK TRAVEL:
- 170 mm
- REAR SHOCK:
- Fox Float X2 Factory, 230x65mm, High/Low Speed Rebound & Compression w/ 2-Position Lever, Kashima Coated
- MOTOR:
- Bosch
- MOTOR CONTROLLER:
- Bosch Smart System Mini Remote
- DISPLAY:
- Bosch Kiox 400
- DRIVE UNIT:
- Bosch Performance Line CX Gen 5 (85 Nm - 120 Nm ) Smart System
- BATTERY:
- Bosch PowerTube 800 Wh Battery
- RANGE EXTENDER:
- Available for Purchase
- CHARGER:
- Bosch 4A
- WHEEL SIZE:
- 27.5 R 29 F
- WHEELS:
- Newmen Beskar 30 base/strong, 28/32 Spokes, 15x110mm/12x148mm, Tubeless Ready
- TYRES:
- Front: Schwalbe Magic Mary Trail Pro, Addix Soft, Kevlar, 2.5 / Rear: Schwalbe Albert Gravity Pro, Addix Soft, Kevlar, 2.5
- DROPPER SEATPOST:
- Yes
- SEATPOST:
- Fox Transfer Factory 31.6mm, Kashima Coated
- SADDLE:
- ACID Venec EMTB Trail 140
- CRANKSET:
- ACID MTB Hybrid Pro, 36T
- STEM:
- CUBE Performance Stem E-MTB 35, FPI-Link
- GRIPS:
- ACID Endure
- SHIFTERS:
- Shimano XTR Di2 SW-M9250-I, Direct Attach
- WIRELESS SHIFTING:
- Yes - wired into motor
- BRAKE BRAND:
- Shimano
- HYDRAULIC BRAKES:
- Yes
- BRAKES:
- Shimano XTR BR-M9220, Hydr. Disc Brake w/ Front ABS (203/203)
- REAR DERAILLEUR:
- Shimano XTR Di2 RD-M9260, 12-Speed, Electronic Shifting System
- CHAIN:
- Shimano XT CN-M8100
- NUMBER OF GEARS:
- 12 Speed
- PEDALS:
- ACID PP MTB
- EXTRAS:
- N/A
- TYPE OF BIKE:
- Enduro
- DESIGNED FOR:
- Conquering challenging terrain that mixes technical climbs with rough, steep descents. Its superb balance of weight and downhill capability making it a firm favourite with more aggressive riders.
- IDEAL TERRAIN:
- Excels on downhill sections with features like drops, jumps, rock gardens, and loose scree. Whether you're racing enduro, hitting the bike park, or tackling natural off piste tracks, an enduro MTB can handle it all.
- PLEASE NOTE:
- Cube reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colours, and materials



