Motors

Gazelle mid-mounted motor e-bike

Climbing a hill with ease, arriving relaxed at work or cycling smoothly along meandering paths. No challenge is too great for a Gazelle with a mid-mounted motor. The low positioning of the motor in the middle of the bike gives your Gazelle nimbleness and thus ensures optimum road-holding and steering response. 

Bosch mid-mounted motor

Effortless cycling

The robust Bosch mid-mounted motor is ideal for day-to-day trips as well as long distances. With torque ranging from 48 Nm up to a maximum of 60 Nm, it provides assistance not only on flat, but also on hilly terrain. 

The robust Bosch mid-mounted motor is ideal for day-to-day trips as well as long distances.

Motor in the front wheel (front-wheel motor)

If the e-bike motor is positioned in the front wheel, it will be as if the bike is being pulled. Due to the extra weight in the front wheel, the bike is heavier to steer than those with the motor in the other positions. An e-bike with a front-wheel motor is equipped with a rotation sensor. A number of models are equipped with both a rotation sensor and a pedal force sensor. If you opt for a battery under the luggage carrier with a front-wheel motor, then it will counterbalance the weight in the front wheel. The bike will be better balanced with the weight distributed.

Advantages

  • A front-wheel motor e-bike is less expensive than a bike with a rear-wheel or mid-mounted motor 
  • You perceive the assistance as if you were being pulled along 
  • A front-wheel motor can be combined with either hub or derailleur gears and all types of chain case

Disadvantages

  • The bike is heavier to steer due to the extra weight in the front wheel 
  • It is not a simple matter to replace the front tyre on the bike or repair a puncture in it 
  • The weight of the bike is predominantly on the front wheel, this increases the risk of skidding

Can be combined with

  • Gears: hub and derailleur 
  • Chain cases: enclosed (hub gears), open and semi-open (derailleur gears)

Motor in bottom bracket (mid-mounted motor)

If the e-bike motor is positioned at the bottom bracket, then the pedals are driven. This is a major difference compared with the drive in the front wheel (front-wheel motor) or in the rear wheel (rear-wheel motor). The electric assistance provides a natural and comfortable feel, but this is offset by the fact that mid-mounted motor bikes are more expensive. The mid-mounted motor is equipped with a rotation and a pedal force sensor. These sensors ensure that you get optimum assistance on the go, based on both speed and the pressure you apply to the pedals. The centre of gravity is in the middle of the bike because the motor is positioned low down and centrally. This gives a feeling of stability while cycling. Cycling on a mid-mounted motor bike is perceived as riding a non-electric bike.

Advantages

  • Mid-mounted motors are usually powerful, thus providing a great deal of assistance 
  • The bike handles like a non-electric bike 
  • The motor position does not affect wheel removal and replacement 
  • You experience natural assistance due to the fact that the pedals are being driven 
  • The motor features a rotation and a pedal force sensor

Disadvantages

  • A mid-mounted motor bike is more expensive than an e-bike with a front wheel or rear-wheel motor 
  • The force on the chain means that the gear system is more prone to faults 
  • The motor is fitted with gears and is not silent

Can be combined with

  • Gears: hub and derailleur 
  • Chain cases: enclosed (hub gears), open and semi-open (derailleur gears)

Motor in rear wheel (rear-wheel motor)

If the e-bike motor is positioned in the rear wheel, then you will perceive the motor assistance as being pushed along. This feels like natural assistance, due the fact that a conventional bike is also driven by the rear wheel. A rear-wheel motor does not generally travel as far on a battery charge as a front-wheel or mid-mounted motor. The centre of gravity coincides with the rear wheel and the bike can be given a more natural balance by opting for a battery fitted in the frame.

Advantages

  • You perceive the assistance as if you were being pushed along 
  • The motor is quiet

Disadvantages

  • It is not a simple matter to replace the rear tyre on the bike or repair a puncture in it 
  • The weight of the bike is predominantly on the rear end 
  • A rear-wheel can only be combined with derailleur gears and a (semi) open chain case 
  • The motor is less efficient

Can be combined with

  • Gear type: derailleur 
  • Chain cases: open and semi-open

Motor position characteristics

Would you like to know which motor position suits you best? This will depend on, among other things, how you intend to use your e-bike. Check out the explanation in video form.