| Specifications | |||
| Model No. | M20RD | M20CD | M20FD |
| Position | Rear Motor | Front Motor | |
| Wheel Size (Inch) | 12/16/20 / 24 / 26 / 700C / 28 | ||
| Construction | Gear Drive | ||
| Rated Voltage (VDC) | 36 / 48 | ||
| Rated Power (W) | 250W/350W | ||
| n0 (rpm) | 420 ; 200 | ||
| nT (rpm) | 400; 180 | ||
| Reduction Ratio | 1:12.6 | ||
| Max. Torque (N.m) | 35 | ||
| Efficiency (%) | ≧80 | ||
| Noise Grade (dB) | <52 | ||
| Operating Temperature | ‐20 – 45℃ | ||
| Weight (kg) | 1.9/2.2/1.8 | ||
| Color | Silver / Black | ||
| Brake | Disc Brake | ||
| Housing Mounting | No Screw | ||
| Installation Widths(mm/OLD) | 135 | 137 | 85/90/100 |
| Max. Housing Diameter(mm) | 120 | ||
| Gearshift | Freewheel | Cassette | NA |
| Cabling Route | Through Shaft Side, left | ||
| Cable Length (mm), Connection Type | 250, G9.1 | ||
| Spoke Specification | 36H*13G / 36H*12G | ||
| Tests & Certifications | IP 65, CE/ROHS, EN ISO 13849‐1:2015 | ||
| Manufacturing Location | Shanghai | ||
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