View full photo ↗KIT 01
Bottle battery kit
Battery positioned in the frame’s bottle-mount area.
- Motor
- 36V / 250W rear hub
- Battery
- 36V / 10.5Ah
- Motor versions
- 135mm QR or 142 × 12mm
- Check before ordering
- Bottle mounts, frame clearance and wheel fit
MOVIOL / ELECTRIC-ASSIST DRIVE SYSTEMS
Your bicycle.
A new possibility.
Rear-hub conversion systems for your next ride.
Supply solutions for your next product line.
250WREAR-HUB MOTOR
36VSYSTEM VOLTAGE
10.5AhBOTTLE BATTERY
2 versions135 QR / 142 × 12 THRU-AXLE
PRODUCT RANGE
Choose your conversion kit.
Start with a conversion kit. Compare the battery position, check your bicycle’s fit, then request a matched configuration.
Two battery layouts
Motor wheel + battery + handlebar display, shown in the product photographs.
View full photo ↗
View full photo ↗KIT 02
Rear-rack battery kit
Battery positioned in a carrier above the rear wheel.
- Layout
- Rear motor wheel + rack-mounted battery
- Battery specification
- Confirm voltage and capacity
- Motor & wheel
- Confirm the quoted configuration
- Check before ordering
- Rack mounts, wheel clearance and axle fit
Confirm the complete parts list, charger, mounting hardware and compatibility in your quotation. The two battery layouts have separate specifications.
Need a different wheel configuration?+
View full photo ↗WHEEL CONFIGURATION
A different wheel size?
Start with your bicycle.
The compact-wheel setup is another configuration of the bottle battery system. Send your wheel size, bicycle model and rear axle details so we can confirm the matching assembly.
Exact rim size and specification are confirmed with your quotation.
Ask about wheel options ↗36V / 250W REAR-HUB MOTOR
Two motor versions. Match your frame.
View photo ↗135mm Quick Release
135mm rear dropout spacing. Select this version for a compatible quick-release frame.
Enquire about this version ↗
View photo ↗142 × 12mm Thru-Axle
142mm rear dropout spacing with a 12mm thru-axle. Confirm axle length and thread pitch for your frame.
Enquire about this version ↗135mm and 142mm describe the rear hub installation width; 12mm describes the thru-axle diameter. The two versions are not interchangeable by default. View the full fit guide ↗
UP CLOSE / PRODUCT DETAILS
Key features & details
View full photo ↗Freehub torque sensing
Senses pedalling effort at the rear-hub freehub.
Details & photos
- Sensor location: at the freehub, where the cassette mounts.
- Axle options: 135mm QR and 142 × 12mm are separate frame-fit specifications.
- Drivetrain fit: confirm the freehub standard and cassette compatibility separately.
View full photo ↗
View full photo ↗The two photographs show the 135mm Quick Release and 142 × 12mm Thru-Axle motor versions. Confirm the sensor model and cassette compatibility separately in your quotation.
Ask about sensor compatibility ↗
View full photo ↗Bottle-mount controller
Motor controller integrated into the battery cradle base.
Details & photos
- Compact layout: controller housing sits at the cradle base.
- Connection points: battery contacts and outgoing cables are shown in detail.
- System matching: confirm controller, motor, display and sensor compatibility.
View full photo ↗
View full photo ↗Check bottle-mount positions, frame clearance and battery removal space before choosing this layout.
Ask about this controller ↗
View full photo ↗USB phone power
USB output for powering a compatible phone.
Details & photos
- Port shown: USB-A beneath the protective cover.
- Everyday use: an additional power source for your phone.
- Before use: confirm output voltage, current and phone compatibility.
USB output ratings, fast-charging support and whether a phone cable is included have not yet been specified. Confirm these details for the selected battery. Keep the port dry and close its cover when not in use.
Ask about USB output ↗
View photo ↗Display & wiring
Handlebar interface and connections for the matched system.
Details & photos
Confirm the display model, cable lengths and connector compatibility in your quotation.
Ask about display & wiring ↗More close-up photographs +
View full photo ↗
View full photo ↗
View full photo ↗Inside the system 3 conceptual exploded views+
MOVIOL / EXPLODED VIEWS
Inside the system.
Explore three conceptual component views.
View full illustration ↗CONCEPT VIEW
The system, layer by layer.
A conceptual view bringing the rear-hub motor, bottle battery and display into one composition.
ILLUSTRATED COMPONENTS
- Rear-hub motor & housing
- Motor axle
- Battery cells & casing
- LCD display
- Cable connectors
View full illustration ↗CONCEPT VIEW
Inside the bottle format.
An illustrative breakdown of the battery assembly and mounting components.
ILLUSTRATED COMPONENTS
- Battery casing
- Battery management board (BMS)
- Lithium cell pack
- Controller (illustrative)
- Heat-dissipation end cap
- Mounting base & key lock
View full illustration ↗CONCEPT VIEW
A closer look at the freehub.
A conceptual view of the sensing assembly, bearings and surrounding parts.
ILLUSTRATED COMPONENTS
- Mounting flange
- Signal connector
- Sensing assembly (illustrative)
- Bearings
- Inner support sleeve
- Freehub body
Concept illustrations, not photographs of disassembled products or assembly instructions. Internal structure and component placement may differ from the supplied product. Original Chinese annotations are retained; the English guide identifies the illustrated components.
INSTALLED BICYCLES & VIDEOS
See the finished conversion.
Explore actual installations, then watch the components and bicycle in motion.
Installation gallery
Actual installation examples. Select a photo for a closer look.
View photo ↗Bottle battery mounted on the down tube.
View photo ↗A complete bicycle with the bottle battery system.
View photo ↗See the installed system in an everyday setting.
More installation views +
View photo ↗Demonstration with rack and bottle batteries shown. Confirm the supplied battery configuration; simultaneous operation is not implied.
View photo ↗A closer look at the rear hub and battery position.
View photo ↗The completed bicycle from another angle.
Installation examples do not guarantee fit on every bicycle. Confirm frame, axle, wheel, brake and battery-mount compatibility before ordering.
Product videos
Motor close-up
A closer view of the rear-hub motor and wheel assembly.
VIDEO COLLECTION / 03
Select a video, then press play. Use the player controls for sound and full screen.
FIND YOUR FIT
Check your bicycle’s fit.
Compatibility is specific to your bicycle. These are two separate motor versions, not a universal axle adapter.
Start with your bicycle.
Confirm the frame model, rear axle standard and battery mounting space before choosing a kit.
Compare the two motor versions ↗Before choosing a kit
01 Frame model, year & rear axle standard
02 Wheel size & brake type
03 Cassette / freehub compatibility
04 Battery mounts & frame clearance
Include your bike details ↗135mm QR & 142 × 12mm: measurement and fitting guide+
REAR DROPOUT SPACING / EXPLAINED
135mm or 142 × 12mm — what do the numbers mean?
Rear dropout spacing is the distance between the frame’s left and right hub seating faces at the rear axle. The hub’s matching installation width is commonly called O.L.D. (over-locknut dimension). It is not the motor shell width or the total axle length.
| What to check | 135mm quick release | 142 × 12mm thru-axle |
|---|---|---|
| Installation width | 135mm between the matching hub seating faces. | 142mm between the matching hub seating faces. |
| What “12” means | 135mm describes spacing, not axle diameter. Confirm the QR hardware and dropout fit separately. | 12mm is the nominal thru-axle diameter. It does not describe thread pitch or total axle length. |
| Frame identification | Typically has open-ended dropout slots. Check the frame specification to confirm. | Typically has enclosed axle holes; the axle passes through the frame and hub. Check the frame specification to confirm. |
| Fixing method | A quick-release skewer clamps the wheel into the compatible dropouts. | A removable thru-axle secures the hub. Axle length, thread pitch and thread engagement must match the frame. |
| MOVIOL option | Select the 135mm QR motor version, subject to full compatibility confirmation. | Select the 142 × 12mm motor version, subject to full compatibility confirmation. |
IDENTIFY
Start with the frame specification.
Check the bicycle manufacturer’s specification for your exact model and year. A lever alone does not identify a quick-release system: some thru-axles also have levers.
MEASURE
Measure at the hub seating faces.
With the rear wheel removed, measure between the correct inner seating faces at the axle position. Do not measure the outside of the frame or the axle from tip to tip. Recessed thru-axle seats can make a simple ruler reading misleading; use the frame specification or ask a bike shop if unsure.
CONFIRM
Check the complete fit.
Include the frame model and year, rear dropout photos, axle markings, wheel size, brake type and cassette/freehub details in your enquiry. For a thru-axle, also confirm its length and thread pitch.
Two versions. Not interchangeable by default.
Prepare a frame compatibility enquiry ↗A 142 × 12mm motor should not be assumed to fit a 135mm QR frame, or vice versa. A 148mm Boost frame, 141mm QR frame or 130mm frame is a different standard. Do not add spacers, change end caps or spread the frame unless an explicitly approved configuration is supplied.
Do not modify or force frame dropouts to fit a motor. Final compatibility and the exact configuration must be confirmed before ordering.
Factory supply enquiries for bike shops, distributors and bicycle brands.
Bike shops
Explore conversion systems for customer upgrades and installation services.
Distributors
Discuss your target market, preferred configurations and expected order quantities.
Bicycle brands
Share your product brief and branding requirements for a feasibility discussion.
Minimum order quantities, pricing, lead times, customization and warranty terms are confirmed individually with each quotation.
INSIDE MOVIOL / OUR COMPANY
Our company.
Tianjin Runbo Chuangzhan
Technology Co., Ltd.
Step inside our reception, office and product display spaces. A look at the everyday environment behind MOVIOL.
WAREHOUSE & BATTERY WORKSHOP
A look behind the components.
Views of storage areas, battery assembly workstations and workshop equipment. Select a photo to view it in full.
Explore our office and display spaces. Select any photo to view it in full.
Talk to us about your project ↗GOOD TO KNOW
Common questions.
Will this system fit my bicycle?
Fit depends on the rear axle, dropout spacing, wheel size, brakes, drivetrain and battery clearance. Include your bike’s make, model and year in your enquiry. Compatibility must be confirmed before ordering.
What is included in the kit?
The featured system includes a rear-hub motor, bottle battery and handlebar display with connecting wiring. Confirm wheel assembly, charger, mounting hardware and all other supplied parts in the final quotation.
Can I order for my shop or brand?
Yes, business enquiries are welcome. Provide your country, business type, required configuration and estimated quantity so that supply options can be discussed.
What range can I expect?
Range depends on terrain, rider weight, speed, assistance level, weather and other conditions. No verified range figure is published for this configuration on this page.
Is a 250W system road-legal everywhere?
No. Rated power alone does not establish road legality. Speed assistance limits, controls, vehicle configuration and local requirements also need to be checked for the destination market.
What are the shipping and warranty terms?
Shipping availability, delivery times and warranty terms will be supplied with your quotation. These details are not yet published.
LET’S TALK
Let’s discuss your build.
Choose a configuration and outline your requirements to prepare a clear enquiry.
Tianjin Runbo Chuangzhan Technology Co., Ltd.
WhatsApp: +86 13820505652
fanyongmin1688@gmail.com
Chat with us on WhatsApp for a catalogue and quotation, or prepare your detailed enquiry using the form. You review and send the message in WhatsApp or your email app.