About the 4Wieler
The most fun and only really safe bike that you can't fall with.About
the 4Wieler.
You have found him!
The nicest and only real
safe bike with which
you cannot fall.
On a 4Wieler you cycle as on a normal bicycle; you sit on a saddle, pedal down and have the handlebars right in front of you. As a result, you sit high, you have a good overview of the traffic and you are well seen by other road users. The ergonomic posture ensures that you use muscles in your back, abdomen and loins.
01
Designed for ultimate stability
Falling with a
4Wieler is not possible.
02
Cycling like on a two-wheeler
The ergonomic posture ensures that you use the right muscles
03
Also available
as an e-bike
With pull-away aid to get out of a standstill easily and quickly.
The bicycle
supports you
Steering takes little effort due to the unique construction of the front suspension where the wheels not only turn, but also tilt when steering. This allows you to make nice short turns without any problems. In addition, the wheels have suspension for optimum comfort and to ensure that the bicycle absorbs the impact and that you can easily countersteer or correct in the event of a steering error. The rack on the front of the bicycle is mounted on the frame so that its weight does not affect the steering.
In addition to steering, braking is also effortless; because the 4 wheels all brake, the wheels cannot block. The Solo Support bike is equipped with powerful disc brakes, but can also be supplied with hydraulic brakes for people with little strength in their hands due to, for example, osteoarthritis or rheumatism.

The advantages of an e-bike
The e-bike is equipped with a 36-volt and 250-watt mid-mounted motor with 10 support positions. This motor is mounted in the middle of the bicycle and drives the sprocket, which actually makes pedaling easier. This is different from a traditional wheel or hub motor that pushes or pulls the bike in front. As a result, the motor does not make pedaling harder when it is switched off. Because the motor has a lot of torque of 80 newton meters, it also provides a lot of power at a low pedaling speed.
The bicycle can be supplied with a battery of 13, 17 and 20 amp hours. With a battery of 13 amp hour you can drive about km / hour. A 17 amp hour battery provides … and 20 for … This of course always depends on various factors such as how hard and whether you pedal along, whether the tires are properly inflated and whether the wind is blowing hard.
Contact us for a free test drive and experience it for yourself!
Unique buy-back guarantee
Good to know
Insurance
You can also insure your 4Wieler through us. The bicycle is insured with KingPolis, which has already been the best in the test several times by the Consumers' Association. When you opt for comprehensive cover, everything is insured; moisture damage, self-made damage and the failure of certain parts. In the event of theft, you can order a new bicycle without depreciation charges being charged.
Maintenance contract
With a maintenance contract, your 4-wheeler will be checked, adjusted and worn or broken parts replaced once or twice a year. The motor and battery are checked, but not replaced if this is not covered by the warranty. However, it is still possible to add this to the maintenance contract.
Delivery time
Normally the delivery time is 4 to 6 weeks. It is possible that due to the consequences of the Corona Pandemic, a part is not available or is poorly available. In that case, we will look for an alternative, but if this is not available, the delivery time may be longer. We may be able to temporarily offer a loaner bicycle.
Unique buy-back guarantee
Good to know
Insurance
You can also insure your 4Wieler through us. The bicycle is insured with KingPolis, which has already been the best in the test several times by the Consumers' Association. When you opt for comprehensive cover, everything is insured; moisture damage, self-made damage and the failure of certain parts. In the event of theft, you can order a new bicycle without depreciation charges being charged.
Maintenance contract
With a maintenance contract, your 4-wheeler will be checked, adjusted and worn or broken parts replaced once or twice a year. The motor and battery are checked, but not replaced if this is not covered by the warranty. However, it is still possible to add this to the maintenance contract.
Delivery time
Normally the delivery time is 4 to 6 weeks. It is possible that due to the consequences of the Corona Pandemic, a part is not available or is poorly available. In that case, we will look for an alternative, but if this is not available, the delivery time may be longer. We may be able to temporarily offer a loaner bicycle.
Our models
for 2 persons
for 3 to 6 people
for 1 person and higher speeds / longer distances
For 1 person
→ Duofiets
For 2 people
→ Meerpersoonsfiets
For 3 to 6 people
→ Tourfiets
For 1 person and higher speeds / longer distances

Driving is believing
“Making a test drive is mandatory and free in Leiden. Together we will examine and decide whether you can safely enter traffic by bicycle.”