| Voltage(V): | 36/48 |
|---|---|
| Type: | Gear Motor |
| Certification: | CCC,CE |
| Usage: | Electric Bicycle |
| Brand Name: | ZISPEED |
Quick Details
Specifications
P/N |
ZSM3185A | |
| Type | 3-speed Rear Motor | |
| Application | Premium E-City | |
| Motor Rated Power | 250W | |
| Motor Max Torque | 40 N.M | |
| Transmission Max Torque | 60 N.M | |
| Outline Size | 140*196 mm | |
| Weight | 3.6 kg | |
| Gear ratio | 1.85 | |
| Transmission ratio | 0.74,1,1.36 | |
| Brake type | Disc Brake | |
| Flywheel Type | Sprocket/Pulley | |
| O.L.D | 142 mm | |
| C.L | 3-port Cassette Sprocket | 56 mm |
| Single-speed Freewheel Sprocket | 59 mm | |
| 9-slot Cassette Pulley | 60 mm | |
Comply with EU regulations
3-speed automatic shifting, higher gear ratio,more comfortable to commute in the city and also have excellent climbing ability.
Automatic shift, no manual operation, no heavy or empty pedaling, simple and comfortable riding.
the transmission and motor complement/optimize each other, the integration reaches larger torque & smaller force, and better performance and longer durability.
the transmission allows the motor to always work at low consumption, which can increase over 15% mileage.
Can match belt pulley, solves the problem that existing hub motor with belt can not change speed.
the start gear adopts one-way clutch, can cut into the power at any angle, no empty pedaling, no ratchet noise.
Internal shift, no need shift cable,simple layout.

| P/N | ZSM3185B | |
| Type | 3-speed Rear Motor | |
| Application | E-city/ E-fat/ E-cargo | |
| Motor Rated Power | 350/500W | |
| Motor Max Torque | 50/55 N.M | |
| Transmission Max Torque | 60 N.M | |
| Outline Size | 158*202 mm | |
| Weight | 4.5 kg | |
| Gear ratio | 1.85 | |
| Transmission ratio | 0.74,1,1.36 | |
| Brake type | Disc Brake | |
| Flywheel Type | Sprocket/Pulley | |
| O.L.D | 148 mm | |
| C.L | 3-port Cassette Sprocket | 59 mm |
| Single-speed Freewheel Sprocket | 62 mm | |
| 9-slot Cassette Pulley | 63 mm | |
Comply with EU/USA regulations, higher power, suitable for e-city bikes,e-fat and e-cargo
3-speed automatic shifting, higher gear ratio,more comfortable to commute in the city and also have excellent climbing ability.
Automatic shift, no manual operation, no heavy or empty pedaling, simple and comfortable riding.
the transmission and motor complement/optimize each other, the integration reaches larger torque & smaller force, and better performance and longer durability.
the transmission allows the motor to always work at low consumption, which can increase over 15% mileage.
Can match belt pulley, solves the problem that existing hub motor with belt can not change speed.
the start gear adopts one-way clutch, can cut into the power at any angle, no empty pedaling, no ratchet noise.
Internal shift, no need shift cable,simple layout.

