Electric Bike Hub Motor Gearbox With Disc V Brake For E Bikes

Hub Motor Gearbox With Disc And V-Brake Matching For E-Bikes

The Compact Electric Gear Hub Motor is designed for OEM e-bike projects that need rear hub motor power, electronic internal shifting and drivetrain matching in one compact rear-wheel system. This configuration page focuses on chain or belt drivetrain planning around the R900 hub motor gearbox reference product.

For city e-bikes and utility e-bike platforms, the choice between chain and belt drivetrain affects frame layout, service strategy, rear-wheel spacing and component matching. R900 provides an integrated motor-and-gearbox direction that can be evaluated for either drivetrain path, with final matching confirmed through drawings and project validation.

This product direction is useful when a buyer is not only searching for a motor, but for a compact drive module that can reduce separated rear-wheel assemblies and support electronic shifting. The page should not be presented as a separate physical SKU or as a complete belt or chain kit.

• Chain Or Belt Matching Focus: Built around the source-listed drivetrain matching direction for R900.
• Integrated Rear-Wheel System: Combines hub motor packaging with electronic 3-speed gearbox functionality.
• Compact OEM Architecture: Supports cleaner rear-wheel system planning for urban and utility e-bikes.
• Gear-Drive Motor Structure: Uses the R900 gear-drive rear hub motor reference configuration.
• Project-Specific Control Matching: Controller and CANbus matching direction should be confirmed before sampling.
• No Kit Overclaim: Do not claim chain, belt, sprocket or belt cog components are included unless the project scope confirms them.

R900 integrates motor drive and electronic shifting in the rear wheel system. When a project uses disc brake or V-brake structure, the brake layout must be reviewed together with frame clearance, wheel build, cable outlet and controller-side matching.

This page is intentionally different from the chain-or-belt drivetrain page. Here the buyer intent is brake-side integration: whether the rear wheel platform, brake mounting structure and service layout can support the selected R900 configuration.

This product page is suitable for e-bike OEMs, city e-bike brands, utility e-bike projects and smart mobility platforms that need to compare disc brake and V-brake matching around an integrated rear hub motor gearbox.

Q: Is this page about drivetrain matching or brake matching?

A: This page focuses on brake matching. Chain or belt drivetrain matching should be handled in the separate drivetrain-focused P2 page.

Q: What brake types are listed for R900?

A: The source parameter table lists Disc Brake / V-Brake.

Q: Can this be used as a universal replacement motor?

A: No. Final use depends on rear frame structure, O.L.D., brake layout, cable routing, controller interface and wheel build.

Q: What should buyers confirm before sampling?

A: Confirm brake mounting structure, frame clearance, O.L.D., cable outlet, wheel size, drivetrain layout, voltage platform and controller matching.

Q: Are certification and total gear ratio final?

A: No. Certification is To Be Confirmed from the source table, and total gear ratio should not be treated as a final public claim unless confirmed by final documentation.