⚡ Nominal Power

The Touroll B1 City is equipped with a 250 W nominal rear hub motor, which sits well below the category average of 744 W. In practical terms, this means the B1’s motor delivers more modest acceleration and top speed support compared with many urban e-bikes that use 500 W to 750 W systems. Riders can still expect a smooth, steady boost up to the legal assist limit (typically around 25 km/h in many regions), but they will notice less punch when launching from a stop or powering up steeper inclines.

For everyday city commuting on mostly flat to gently rolling terrain, a 250 W hub-drive motor can be an efficient choice. You’ll benefit from lower weight in the rear wheel assembly—helpful for handling and lifting the bike in tight spaces—and generally higher energy efficiency at moderate effort levels. However, if your route includes consistently steep hills or you plan to carry heavy loads, the lower nominal power means you won’t have as much reserve torque as you would with a 500 W or 750 W motor.

The Touroll B1’s motor spec will matter most to riders who prioritize a lighter bike and urban agility over raw pulling power. Daily commuters covering 10–20 km on mixed pavement will find 250 W sufficient for keeping pace in city traffic, extending battery range through efficient power delivery. Conversely, riders seeking strong hill-climbing performance or frequent off-road use might look for a higher-wattage system closer to—or exceeding—the 744 W category average.