f Bafang’s product lineup, including motors, batteries, HMIs, and applications. Bafang is a leading manufacturer of e-bike drive systems, known for modularity, reliability, and customization. Let’s break it down:

M-SERIES
M820
M620
M560
M510
M430
M410
M210
M615
M315
M215
HR-SERIES
H730
H720
H710
H700
H560
H550
H550W
H410
H405
H305
HF-SERIES
H400

1. MOTORS

M-Series (Mid-Drive Motors)

  • Key Models: M200, M400, M500, M600, M800

  • Power: 250W–750W (EU legal limits to high-performance).

  • Torque: 80–160 Nm (M600/M800 for heavy loads).

  • Features:

    • Integrated torque/cadence sensors.

    • Compatible with Bafang Go app for customization.

    • Lightweight (3.5–4.5 kg) with aluminum housing.

    • For eMTB, eCargo, eTour (steep hills, off-road).

  • Best For: Riders needing natural pedal assist and high torque.

H-Series Rear (Hub Motors)

  • Key Models: H300, H500, H700

  • Power: 250W–750W (rear hub).

  • Speed: Up to 45 km/h (depending on region/laws).

  • Features:

    • Simple installation (bolt-on).

    • Geared design for efficiency.

    • Compatible with cassettes/freewheels.

  • Best For: eCity, eRoad (commuting, flat terrain).

H-Series Front (Hub Motors)

  • Key Models: H300F, H500F

  • Power: 250W–500W (front hub).

  • Features:

    • Front-wheel drive for balanced weight distribution.

    • Less common than rear hubs but useful for specific builds.

  • Best For: Lightweight eCity bikes or retrofit conversions.

2. GEAR HUB MOTORS

  • Key Models: G310, G340 (internal gear hubs).

  • Power: 250W–500W.

  • Features:

    • Combines motor + gear hub (3–5 speeds).

    • Low maintenance (sealed gears).

    • Smooth shifting (Nuvinci/Shimano compatibility).

  • Best For: eTour or eCity bikes needing simplicity.

3. BATTERIES

  • Voltages: 36V, 48V, 52V.

  • Capacities: 10Ah–21Ah (360Wh–1,092Wh).

  • Form Factors:

    • Downtube: Sleek, integrated (e.g., 48V 17.5Ah).

    • Rack-mounted: For cargo/utility bikes.

    • Removable: Easy charging/swapping.

  • Tech:

    • Samsung/LG cells (high energy density).

    • Smart BMS (battery management system).

  • Best For:

    • Long-range: 48V 21Ah (1,000Wh+).

    • Lightweight: 36V 10Ah (360Wh).

4. HMI (Human-Machine Interface)

  • Displays: DP C18, DP C240, DP C265.

  • Features:

    • LCD/color screens with speed, battery, assist levels.

    • Bluetooth connectivity (Bafang Go app integration).

    • Waterproof (IP65 rating).

  • Controllers:

    • Programmable parameters (max speed, torque curves).

    • Compatible with throttle (if legal in region).

5. BAFANG GO

  • What It Is: A smartphone app for system customization.

  • Features:

    • Adjust pedal assist levels, torque sensitivity, max speed.

    • Firmware updates.

    • GPS tracking (optional).

  • Compatibility: M-Series motors + newer HMIs.

6. APPLICATIONS

Bafang systems are tailored for specific e-bike categories:

eMTB (Electric Mountain Bikes)

  • Recommended: M600/M800 mid-drive (160 Nm torque).

  • Battery: 48V 17.5Ah (840Wh) for steep climbs.

  • Features: High torque, waterproofing, robust chainring.

eROAD (Electric Road Bikes)

  • Recommended: H700 rear hub motor (lightweight, 45 km/h).

  • Battery: 36V 14Ah (504Wh) for slim integration.

eTOUR (Electric Touring Bikes)

  • Recommended: M500 mid-drive (95 Nm torque) + gear hub.

  • Battery: 48V 20Ah (960Wh) for long distances.

eCITY (Urban Commuters)

  • Recommended: H300 rear hub (250W) + 48V 15Ah battery.

  • Features: Low noise, maintenance-free.

eCARGO (Cargo Bikes)

  • Recommended: M600 mid-drive (160 Nm) + dual-battery option.

  • Battery: 52V 21Ah (1,092Wh) for heavy loads.

eFAT (Fat Tire Bikes)

  • Recommended: M800 mid-drive (750W, 160 Nm) + 52V battery.

  • Features: High torque for sand/snow.

Key Strengths of Bafang

  1. Modularity: Mix-and-match motors, batteries, HMIs.

  2. Customization: Open programming via Bafang Go app.

  3. Global Compliance: Motors certified for EU (EN15194), US (UL2849).

Weaknesses

  1. Weight: Mid-drives add ~4 kg vs. competitors like Bosch.

  2. Dealer Support: Less widespread than Shimano/Bosch.

Comparison Table

Component Best For Top Model Torque/Power
M800 (Mid-Drive) eMTB, eFAT M800 160 Nm, 750W
H700 (Rear Hub) eROAD, eCITY H700 45 km/h, 500W
G340 (Gear Hub) eTOUR G340 80 Nm, 250W
52V 21Ah Battery eCARGO, eFAT BBSHD-compatible 1,092Wh

Final Recommendations

  • DIY Builders: H-series hub motors + removable batteries (easy install).

  • Performance Riders: M800 mid-drive + 52V battery (eMTB/eFAT).

  • Urban Commuters: H300 + 48V 15Ah (budget-friendly).

Need more specifics? Let me know your use case! 🚴