The VELOKS MK3 is available with a set of advanced and unique drive systems, both in terms of motor drive systems and human drive systems (gear, chain, etc.)
Motor Drive Systems
the VELOKS MK3 is not only long range, it is also powerful and versatibe in terms of motor options
VELOKS MK3-MID - mid drive system
One 250, 1000 or 3000 WATT geared mid/center motor
The VELOKS MK3-MID is the “classic” version of the MK3.
This drive system is suitable for most types of driving, except where high traction is required.
The geared powerful mid / center motor (up to 3000 WATT) is mounted very low under the seat, and drives the rear wheel through a separate motor chain on the left.
Advantages are: low cost, ability to transfer high torque (100 NM) to the rear wheel, ability to use all types of gearing systems, such as: Rohloff Speed hub, Enviolo (former Nuvincy), derailleur gears etc.
Disadvantages are: limited traction when wet (30% weight on rear wheel) and the extra motor chain that must be tensioned occasionally and typically replaced every 5000-6000 km.
Torque sufficient to go up steep hills (up to 15% incline). Maximum speed is 60 km/h.
VELOKS MK3-RWD - rear hub drive system
One 1000 or 2000 WATT geared rear hub motor
The VELOKS MK3-RWD is a new rear wheel drive version.
This system is ideal for commuting and touring/travel.
The geared Hub Motor (up to 2000 WATT) allows powerful and efficient regenerative braking. The motor has 10 mm round axle and integrated toque mount for easy removal of the rear wheel.
Advantages are: little maintenance, low noise.
Disadvantages are: cost, higher moving mass (3.5 kg), only derailleur gears can be used.
Torque is sufficient to go up steep hills (up to 10% incline). Maximum speed is 45 km/h.
VELOKS MK3-FWD - front drive system
Two 1000 or 2000 WATT front wheel hub motors
The VELOKS MK3-FWD is a new front wheel drive version.
This drive system is suitable for most types of driving, also on slippery surfaces where high traction is required.
The motors are powerful (up to 4000 WATT total) and have been designed for single sided mount and 20mm axles.
Advantages are: low noise, low maintenance, high traction, good acceleration and maximum regeneration (70% of the weight is on the front wheels), ability to use all types of gearing systems, such as: Rohloff Speed hub, Enviolo (former Nuvincy), derailleur gears.
Disadvantages are: high cost, higher moving mass (3.5Kg per front wheel) and higher cost.
Torque sufficient to go up steep hills (up to 30% incline). Maximum speed is 60 km/h.
VELOKS MK3-AWD - all wheel drive system
Three 1000 or 2000 WATT hub motors
The VELOKS MK3-AWD is a new all-wheel drive version.
This drive system is suitable for all types of driving, also on slippery surfaces and on snow/ice where extreme high traction and acceleration is required.
The three motors are powerful (up to 6000 WATT total). This configuration is low maintenance and provides extremely high acceleration.
Traction and regeneration is at the max (up to 5000 WATT regeneration) as each wheel has 33% of the weight of the trike.
Disadvantages are: Very high cost, higher moving mass on each wheel (3.5 kg per wheel), only derailleur gears can be used.
Torque sufficient to go up steep hills (up to 35% incline). Maximum speed is 60 km/h.
Human Drive Systems
A number of different human drive options are available, depending upon your requirement and usage
SRAM 11 Gear Chain Gears - Derailleur
This is the default configuration that comes at no extra cost for all versions of the MK3. The rear cassette has 11 sprockets from 11 to 42 tooth, providing a gear ratio of 380%. Gear shifting is handled via a grip shifter on the right handlebar.
Single front sprocket - torque sensor
The front black aluminium crank has a sprocket of 44 tooth, and has a built in chain protector. Pedal arm length is 170 mm. The bottom bracket has a built in torque sensor that measure the human power, which is also displayed on the center display. The human power is used to calculate the (configurable) motor power in the PAS mode.
Enviolo step less Auto or Manual gears
This option is available for the MK3-MID and the MK3-FWD versions. The automatic version will shift the gear automatically depending upon your speed, keeping your cadence constant. The gear ratio is 380%. Gear shifting (and candence setting for the Auto version) is via grip shifter on the right handlebar.
Shimano standard / SPD pedals
The standard pedals mounted have click pedal s (SPD type) on one side, and a standard pedal on the other side. It is advisable to use click pedals (and appropriate click shoes) when riding the trike. This is to avoid that your feet fall down and get stuck under the front front suspension while driving.
Rohloff Speedhub Manual 14 Gears
This option is available for the MK3-MID and the MK3-FWD versions. This high quality manual hub has 14 gears, and provides a gear ratio of 526%. Gear shifting is handled via a grip shifter on the right handlebar.
Chain encapsulated in PVC tubes
The “human drive chain” runs from front crank sprocket all the way to the rear gear system. The top “driving” part of the chain runs through the front suspension via an idler sprocket under the seat (and over the battery) to the rear sprocket. The “return” part of the chain runs under the battery box. The chain runs mostly inside a PVC tubes to protect against dirt and to protect the rider from the chain.