Hub Motor Gearbox With Electronic 3-Speed Shifting For Premium E-Bikes
| Model: | R900 | Product Category: | Hub Motor Gearbox |
| Application Focus: | Premium City E-Bikes / OEM Drivetrain Integration | Target Buyer: | E-Bike Brands / OEM Product Managers / E-Drive R&D Teams |
| System Positioning: | Integrated Rear Hub Motor + Electronic 3-Speed Shifting | Core Technology: | PedalFlow™ Shifting Technology |
| Standard Platform: | 36V DC, 148 Mm O.L.D. | Riding Value: | Smoother Starts, Climbing Support And Reduced Shift Interruption |
| Drivetrain Matching: | Chain / Belt | Brake Matching: | Disc Brake / V Brake |
| High Light: | Hub motor gearbox with electronic shifting,3-speed hub motor gearbox for e-bikes,Premium e-bike hub motor gearbox |
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R900 is a 36V hub motor gearbox designed for premium city e-bikes and OEM drivetrain development. It integrates a rear hub motor with an electronic 3-speed shifting system in one compact rear-wheel unit, helping vehicle brands reduce exposed drivetrain complexity and create a cleaner, more refined e-bike architecture.
For riders, the value of R900 is a more natural shifting experience. With PedalFlow™ technology, the system supports gear changes while pedaling, helping maintain drive continuity during starts, climbs and acceleration. Instead of treating motor output and shifting as separate systems, R900 brings both functions into one integrated e-drive module.
For OEM teams, R900 provides a source-backed standard configuration with 36V DC voltage, 148 mm O.L.D., 162% total gear ratio, 250W / 350W rated power, 50 N.m maximum torque, chain or belt drivetrain options and Disc Brake / V Brake versions. It is suitable for premium city e-bikes, smart commuter platforms and high-end urban mobility models where compact packaging, low noise and drivetrain differentiation matter.
- Premium E-Bike OEM Focus: Designed for high-end city e-bike platforms and OEM drivetrain differentiation.
- Integrated Hub Motor Gearbox: Combines rear hub motor drive and electronic 3-speed shifting in one compact system.
- PedalFlow™ Shifting Technology: Supports smoother gear changes while pedaling.
- 162% Total Gear Ratio: Provides three-speed drivetrain coverage for urban riding and climbing support.
- 36V Standard Platform: Built around the current standard 36V product direction.
- Chain Or Belt Drivetrain Matching: Supports different premium e-bike drivetrain layouts.
- Disc Brake / V Brake Versions: Both brake directions can be considered for production.
- Low Noise Design: ≤55 dB noise level supports refined city e-bike positioning.
- IPX6 Waterproof Rating: Supports regular outdoor e-bike use.
- Clear Page Boundary: No certification claim and no public CANbus customization detail on this product page.
| Parameter | Specification |
|---|---|
| Model | R900 |
| Product Category | Hub Motor Gearbox |
| Product Type | Electronic 3-Speed Gear Hub Motor System |
| Speed Level | Electronic 3 Speed |
| Total Gear Ratio | To Be Confirmed - 162% appeared in old backend draft but was not shown in the extracted parameter table |
| O.L.D. | 148 mm |
| Motor Construction | Gear Drive |
| Rated Voltage | 36V DC |
| Rated Power | 250W / 350W |
| Maximum Torque | 50 N.m |
| Maximum Efficiency | ≥78% |
| Weight | 3.8 / 3.9 kg |
| Color | Black |
| Noise Level | ≤55 dB |
| Brake Type | Disc Brake / V-Brake |
| Cable Outlet | Axle Hole, Right Side |
| Cable Length | 250 mm |
| Spoke Specification | 36H*12G/13G |
| Drivetrain Matching | Chain / Belt |
| Waterproof Rating | IPX6 |
| Certification | To Be Confirmed - source table shows / |
R900 combines gear-drive motor output with electronic 3-speed shifting inside the rear hub motor system. The integrated layout helps reduce the separation between motor drive and gear shifting, making it easier for OEM teams to design a cleaner rear-wheel e-drive architecture.
PedalFlow™ technology is the key experience layer. It supports shifting while the rider is pedaling, helping reduce the sense of power interruption during starts, climbs and acceleration. For premium city e-bikes, this can make the drivetrain feel more intuitive and less mechanical.
R900 is suitable for premium city e-bikes, smart commuter models, OEM urban e-bike platforms and high-end mobility products that need compact rear-wheel packaging and electronic shifting differentiation. It is especially useful when the vehicle brand wants an integrated rear motor and shifting system instead of a conventional exposed drivetrain layout.
Before sampling or production, OEM customers should confirm rear frame drawing, 148 mm O.L.D., wheel specification, brake type, chain or belt drivetrain layout, controller interface, cable routing, voltage platform, target vehicle type, operating environment and expected load condition. Certification, controller protocol details and project-specific compatibility should be confirmed separately if required.
Q: What is R900?
A: R900 is a hub motor gearbox system that integrates rear hub motor drive with electronic 3-speed shifting.
Q: Is R900 only a hub motor?
A: No. R900 should be positioned as a hub motor gearbox, because the product integrates motor drive and electronic 3-speed shifting in one rear-wheel system.
Q: What is the standard voltage?
A: The current published standard version is 36V DC.
Q: What is the total gear ratio?
A: The published total gear ratio is 162%.
Q: Does the product page mention CANbus customization?
A: No. CANbus customizable shift logic is not published on the product page at this stage.
Q: Does this page publish certification?
A: No. Certification should not be written on the product page unless separate confirmed documents are provided.
Q: What should OEM customers confirm before sampling?
A: Confirm frame drawing, O.L.D., brake type, drivetrain type, wheel specification, controller interface, cable routing, target vehicle type and operating conditions.
