Choosing between a 1000W and a 1500W electric bike conversion kit comes down to one question: what will your customers use it for? Pick 1000W for commuting and city riding — it's the sweet spot of power, efficiency, and cost. Pick 1500W for off-road, cargo, or hilly terrain where torque matters more than range. Below is the full breakdown.
Quick Comparison
| 1000W Kit | 1500W Kit |
|---|
Rated power | 1000W | 1500W |
Peak power | ~1400W | ~2000W |
Peak torque | 50–60 Nm | 80 Nm |
Top speed | 45–50 km/h | 55–65 km/h |
Recommended battery | 48V 17.5–20Ah | 48V/52V 20–25Ah |
Controller | 30A | 35A |
Range (typical) | 60–90 km | 50–75 km |
Weight penalty | Lighter | ~2–3 kg heavier |
Best for | Commuting, city, light trails | Off-road, cargo, steep hills |
These peak torque figures refer to the D198A and D198B kits for off-road and mountain bike applications. Peak torque does not represent continuous torque output. Actual performance depends on the system configuration and operating conditions.
Power and Torque: What the Numbers Mean in Practice
Wattage alone doesn't tell the whole story — torque is what your customers feel when climbing. A 1000W gearless hub motor delivers enough pull for city commuting and moderate hills. A 1500W motor, like our D198B with its 198mm stator, produces the kind of torque that moves loaded cargo bikes and electric tricycles up steep grades without overheating. If your market includes delivery fleets or mountain regions, 1500W is the safer recommendation.
Battery and Range: The Hidden Cost Difference
A 1500W kit demands more battery. Plan on a 48V/52V 20Ah+ pack with high-discharge 21700 cells and a 35A controller — otherwise the system can't deliver its rated power and the battery ages fast. A 1000W kit runs happily on a smaller, cheaper 48V 17.5Ah pack. For distributors, this matters: the battery is the most expensive part of the kit, and oversizing it for customers who don't need the power just raises your price against competitors.
Legal Limits by Market: Don't Ignore This
Power ratings affect where the finished e-bike can legally be sold. The EU limits road-legal pedelecs to 250W continuous — anything above is sold as off-road or requires registration depending on the country. The US class system caps Class 1/2/3 e-bikes at 750W motor rating. Kits above these limits are typically sold for off-road, private land, or export markets with different rules. Always check your target market's regulations before stocking high-power kits — and ask your supplier for the correct compliance documentation.
Which Kit Sells Best — and Where?
Europe (city/commuter distributors): 1000W hub kits are the volume seller. Position 1500W as a niche off-road/cargo option.
North America: 1000W kits dominate DIY and commuter channels; 1500W+ sells to the enthusiast and hunting/off-road segment.
Cargo and tricycle builders: Go straight to 1500W. Torque beats efficiency when there's load involved.
FAQ
Can I run a 1500W motor on a 48V 15Ah battery?
Technically yes, but you won't get 1500W of performance — the battery's BMS will limit current, and you'll shorten the pack's life. Match the battery to the motor.
Is a 1500W kit much harder to install than 1000W?
No. Installation is nearly identical — same dropout width standards, same wiring logic. The difference is in battery and controller sizing, not labor.
Do you offer both in OEM quantities?
Yes. Our hub motor kits cover 250W to 3000W with custom winding, branding, and packaging. Standard configurations, including standard sample orders, have no minimum order quantity. For custom orders, contact us with your specific customization requirements.
