E-bike frame system with motor mounts, sealed cable entry, and precision hardware

E-Bike Frame Hardware & Motor Mounts

Motor mount interfaces, battery bracket hardware, and structural fasteners for e-bike frame programs

## The Challenge: E-Bike Frame Hardware at 250W–750W E-bike motor mounts carry fundamentally different loads compared to traditional bicycle fasteners. A mid-drive motor delivers 50–85 Nm of torque through a mounting interface that bolts directly to the frame. Add rider weight, cargo, and dynamic terrain loads, and the mount interface becomes the most structurally demanding joint on the entire bicycle. The motor mount must maintain alignment, resist loosening, and survive fatigue loading across the vehicle's entire service life—all while accommodating the thermal expansion differences between aluminum frame, steel bolts, and motor housing.
## Key E-Bike Hardware Categories ### Motor Mount Interfaces Drawing-controlled motor mount brackets that interface between the motor unit and bicycle frame. These components carry the full motor torque reaction load and vehicle-level structural forces. - **PS-R Series**: Motor mount references for BROSE, BOSCH, and SHIMANO platforms (15 mapped SKUs) - Material: 6061-T6 aluminum warm forged + CNC finished - Process: Warm forging aligns grain flow with load direction for superior fatigue strength - Finish: Black anodizing, e-coating, or customer-specified coating ### Battery Bracket & Frame Hardware Structural brackets, threaded inserts, and mounting hardware for downtube-integrated and external battery systems. - **PS-E Series**: M5–M6 threaded weld nuts and bottle bosses for battery mount interfaces - **PS-A Series**: Socket head cap screws and button head screws for bracket attachment ### Cable Routing & Management E-bike frames require additional cable routing for motor power, speed sensor, display, and light wiring compared to traditional bicycles. - **PS-L Series**: Cable stops and guides for internal and external routing (370 mapped SKUs) - **PS-M Series**: Five-in-one integrated cable guides for multi-cable frame routing
## Why Forged Instead of CNC-Only Motor mount brackets operate under cyclic loading where grain flow direction matters. Warm forging of 6061-T6 aluminum aligns the material grain structure with the primary load path, producing: - **Higher fatigue strength** than CNC-only parts from billet - **Better impact toughness** in the critical failure zone - **Reduced material waste** compared to full billet machining - **Consistent mechanical properties** across production batches Post-forge CNC finishing achieves the tight interface tolerances required for motor alignment and frame integration.
## Motor Platform Compatibility | Platform | Series | Interface Type | |---|---|---| | BROSE Drive-S/T | PS-R | Upper/lower cover mounts, motor bracket | | BOSCH Performance Line | PS-R | Motor bracket, cover mount | | SHIMANO STEPS E6000/E7000/E8000 | PS-R | Upper/lower cover mounts | | Custom / Proprietary | PS-R | Drawing-controlled per customer specification | **Note**: Final motor mount geometry must be confirmed by the frame drawing and motor platform specification. Submit your assembly drawing or frame CAD model for DFM review.
## RFQ Checklist for E-Bike Hardware - 2D drawing or STEP file of the motor mount interface - Motor platform (BROSE, BOSCH, SHIMANO, or custom) - Material and heat treatment specification - Target annual volume and initial batch quantity - Surface finish and corrosion resistance requirement - Inspection and testing requirements (dimensional report, fatigue test, PPAP level) Submit E-Bike RFQ
## Related Series - [PS-R E-Bike Motor Mounts](/products/ps-r-motor-mounts) - [PS-E Embedded Weld Nuts & Bottle Bosses](/products/ps-e-embedded-weld-nuts) - [PS-L Single Cable Stops & Guides](/products/ps-l-single-cable-stops) - [PS-M Five-in-One Cable Guides](/products/ps-m-five-in-one-guides-folding-boxes) - [PS-A Standard Fasteners](/products/ps-a-standard-fasteners)