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particular, the foot protuberance on the bow can easily touch down when passing sinks or bollards. If 
in doubt, get out or drive around these obstacles. Keep in mind that normal road building regulations 
do not take into account the special features of such vehicles. 
If you want to cross rails, approach them at the greatest possible angle so that your wheels don't slide 
into the rails. 
 

4.8 Loading 

 
The load must always be well secured and stowed in such a way that it cannot get to any moving parts, 
i.e. it cannot impede steering, drive or leg and arm movements. The maximum payload is 120 kg for 
non-reinforced Bülk MK1. 

 

4.9 Hold-down device 

 

The  hold-down  devices  are  adjustable  foam  pads  that  you  attach  over  your  shoulders  with  Velcro. 
These hold-down devices are very important for safety in the event of an accident. 
With the right setting, they prevent you from slipping out of the vehicle when it rolls over and leaving 
the vehicle's rollover protection. 
Furthermore, correctly adjusted hold-down devices prevent the driver from sitting up in the event of a 
frontal crash and thus from accelerating forward. In this way you avoid facial injuries and collisions 
with the steering column. 
The hold-down devices should be placed over your shoulders so that you do not feel any pressure while 
riding, but the distance to your shoulders is no more than about 1 cm. 
 

4.10 The tiller cable 

 

The steel cable, with which the steering column (tiller) is adjusted in its inclination and position to 
you, has a steering-stabilizing effect as well as a safety-relevant aspect. 
In the event of a frontal crash, it prevents the steering column from colliding with your body. Read 
point 5.8 on how to set the steering column correctly. 

 

4.11 Awareness of road condition

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Another special feature of the handling is the following: thanks to the protective bodywork and the 3 
tracks, you are much better protected against slipping and falling than on a single-track bike. But: 
One circumstance requires  special attention!  If the rear wheel  of a velomobile no longer tracks  the 
vehicle (keeps it on track), the rear can break out and cause skidding. This can be caused by a blown 
rear tire (see Precautions to take before driving) or by losing contact with the road. 
This can happen in 2 situations in particular: 

 

You drive at high speed from smooth asphalt onto a paved road or: 

 

You are driving on the right-hand side of a road that slopes down to the right and has a very 
poor surface (pits, roughness). 

In both cases it can happen that the rear wheel with suspension resonates with the bumps and starts to 
jump. If the road then slopes down to the right, the rear can wander off to the right. 
So be sure to adjust your speed to such circumstances. 

4.12 The turning Circle 

 

Summary of Contents for Bulk MK1

Page 1: ...d vehicles 4 3 While driving 5 4 Information on the special features of the vehicle 5 4 1 Brakes 5 4 2 Steering 6 4 3 Cornering 6 4 4 Speed 7 4 5 Lighting 7 4 6 Body 7 4 7 Behaviour in traffic 7 4 8 L...

Page 2: ...seat 12 5 7 1 Basic settings 12 5 7 2 Quick settings 13 5 8 Correct setting of the tiller cable 13 6 Hoods and lids 13 6 1 Foam combi lid 13 6 2 Hood for daily use with moped visor 14 6 3 Racehood 14...

Page 3: ...carefully and to follow them The B lk MK1 has like velomobiles in general some special riding characteristics that are not known from normal bicycles and that can lead to dangerous situations if the r...

Page 4: ...t should never be less than 6 mm The end of the trailing arm which leads through the wheel housing should definitely be screwed on with a self locking nut and have a sufficient thread protruding The c...

Page 5: ...y e g because you shifted while stationary the chain can jam with the rear derailleur and cause damage Stop the backward movement immediately if you feel resistance or hear a suspicious noise Since th...

Page 6: ...g using the steering levers on the front wheel housing it is in principle possible to steer with one lever but note that in braking situations both hands are needed to operate the left and right brake...

Page 7: ...rly visible in traffic 4 6 Body With the B lk MK1 the body takes on a supporting function and is not only responsible for wind and weather protection However so that the body can be built as lightly a...

Page 8: ...t feel any pressure while riding but the distance to your shoulders is no more than about 1 cm 4 10 The tiller cable The steel cable with which the steering column tiller is adjusted in its inclinatio...

Page 9: ...aching them as obliquely as possible Do not under any circumstances drive over deadlocks at high speed Potholes can also lead to bottoming Feel your way towards these conditions 4 14 Boarding and dise...

Page 10: ...with the visor becomes too poor you should open the visor a little 5 Maintenance and Self Help The wear on the drive components is significantly lower than on a normal bicycle This is because the chai...

Page 11: ...en these elastomeric rubbers are worn out they must be replaced Sometimes simply tightening the screw connection is enough The important thing here is that the screw connection must not be tightened t...

Page 12: ...oft pad and secured against each other so that they cannot tip over The support points should be chosen so that the stiffened parts of the B lk are supported so that the body does not buckle Remove lu...

Page 13: ...ated behind the seat so that it fits the head position in the head rest adapter The head should neither be looking too far into the sky poor vision with varifocals nor should it be bent too far forwar...

Page 14: ...hen the inlet will open When you push the actuator back up you close it again Under no circumstances should you try to open it by turning the actuator The actuator may only be pulled or pushed otherwi...

Page 15: ...chapter 5 7 Here are the approximate sizes again Persons from 145 165 cm choose the adapter small Persons from 165 180 cm choose the adapter medium People over 180 cm usually do not need an adapter a...

Page 16: ...cause then they will be pushed out of your ideal line and the drive will no longer run efficiently The chain then rubs in the chain tube With the carbon cover you can avoid this and use the space behi...

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