With the goal of developing an extremely lightweight and above all compact wheel hub motor, Kappstein is introducing the new B3 motor weighing just 2.5 kg and with the diameter of a geared hub, this powerful lightweight is designed as a direct drive, making it much quieter than standard geared motors and providing a very smooth riding performance.

SPECIFICATIONS

Type: BLDC direct drive motor
Nominal capacity: 250W
Maximum output: 400W
Voltage: 36V
Torque: 25Nm
Efficiency: 86%
Torque sensor: internal
Controller: internal
Communication: various options

Spokes: 28, 32, 36
Diameter: 110mm
Weight: 2.6kg
Performance: smooth running
Axle: M10, thru axle
Brake: 6-bolt adapter
Miscellaneous: no screws, clean look, internal heat sensor

The 2-speed bottom bracket gearbox “Doppio” from Kappstein is a compact, light and comfortable transmission unit in the bottom bracket bearing. Thanks to the extremely compact design, the entire gearbox is only 1cm wide and only about 200g heavier than conventional bottom brackets. The Doppio offers the driver a ratio of 1.57 in the heavier 2nd gear. This allows the number of gears to be increased with many possible combinations.

Type: Mid-Motor

Shape: Cylindrical

Max Torque: 95Nm (standard); 75Nm (light)

Weight: 2.2Kg (Standard); 1.8Kg (light)

Size: ø90mm only

Benefits: Narrow Q Factor, Standard ISIS shaft (suitable for any ISIS crankset)

The Elite Chainring was developed in cooperation with FES, the Institute for Research and Development of Sports Equipment. It was developed especially for the demanding requirements of professional track cyclists and their frames. Meanwhile, top athletes are using up to 70T chainrings on their hunt for the best times. With chainrings of this size, it is extremely important to guarantee the rigidity of the chainring when subjected to high loads. Thanks to special struts on the interior, it has been possible to achieve the necessary stiffness while simultaneously reducing weight. Only high-quality 7075/T6 aluminium is used as the raw material.

With the goal of developing an extremely lightweight and above all compact wheel hub motor, Kappstein is introducing the new B3 motor weighing just 2.5 kg and with the diameter of a geared hub, this powerful lightweight is designed as a direct drive, making it much quieter than standard geared motors and providing a very smooth riding performance.

SPECIFICATIONS

Type: BLDC direct drive motor
Nominal capacity: 250W
Maximum output: 400W
Voltage: 36V
Torque: 25Nm
Efficiency: 86%
Torque sensor: internal
Controller: internal
Communication: various options

Spokes: 28, 32, 36
Diameter: 110mm
Weight: 2.6kg
Performance: smooth running
Axle: M10, thru axle
Brake: 6-bolt adapter
Miscellaneous: no screws, clean look, internal heat sensor

The 2-speed bottom bracket gearbox “Doppio” from Kappstein is a compact, light and comfortable transmission unit in the bottom bracket bearing. Thanks to the extremely compact design, the entire gearbox is only 1cm wide and only about 200g heavier than conventional bottom brackets. The Doppio offers the driver a ratio of 1.57 in the heavier 2nd gear. This allows the number of gears to be increased with many possible combinations.

Type: Mid-Motor

Shape: Cylindrical

Max Torque: 95Nm (standard); 75Nm (light)

Weight: 2.2Kg (Standard); 1.8Kg (light)

Size: ø90mm only

Benefits: Narrow Q Factor, Standard ISIS shaft (suitable for any ISIS crankset)