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Due to  its  closed wheelhouses,  the Bülk  has  a relatively large turning  circle (depending on the tire 
width used). 
That is the price for the enormously high efficiency of the vehicle. 
With a little practice, however, you can easily find your way around with it in everyday life. 

 

Familiarize yourself with the turning circle by first going over to a parking lot or similar. If you 
hear the rubbing noises of the coats on the wheel housing when you turn the steering wheel, 
you have turned the wheel fully. You should avoid this condition. 

 

In everyday traffic,  you should know  your turning circle and not try to turn on a street. 90-
degree turns are no problem and U-turns at intersections usually work if you turn the steering 
early enough. 

 

Sometimes you need more steering angle when manoeuvring than you have, what can you do 
then?  You  can  drive  backwards  by  pushing  off  the  road  with  your  hands.  You  can  also  use 
slightly  uphill  driveways  or  similar  to  drive  back  and  forth  and  reach  your  desired  driving 
direction. Or you get out and move the vehicle. 

 
4.13 Ground Clearance 

 
Another special feature is the ground clearance of the vehicle. Especially with the sport tuning of the 
chassis,  it  can  happen  that  the  protuberances  at  the  front  of  the  vehicle  touch  down  on  prominent 
bumps. Also jambs can be higher than the ground clearance. This can be defused by approaching 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 disembarking 

 

The best way to get on board is as follows: 

 

Apply the parking brake. 

 

Sit with your bottom on the back part of the coaming and swing your (usually) right leg into 
the  Bülk.  Place  your  foot  on  the  transverse  tunnel  of  the  front  wheel  arch  while  supporting 
yourself with your hands on the rear part of the coaming. Now lower yourself into the vehicle 
onto  the  seat.  In  order  to  get  into  the  vehicle  with  your  shoulders,  you  have  to  turn  a  little 
sideways so that your shoulders can get under the coaming and its hold-down devices. 

 

If they want to get out, this is helpful: 

 

Apply the parking brake. 

 

Snap the Tiller handlebar into its holder on the coaming. 

 

Open the hood fully. 

 

Snap the Tiller handlebar into its holder on the coaming so that it doesn't bother you when you 
get out. 

 

Now  bend  your  upper  body  as  far  forward  as  possible  and  place  your  hands  as  far  back  as 
possible on the coaming. Now  you can pull  yourself up until  you can sit on the coaming in 
front  of  the  head  rest.  Once  you  reach  this  seat,  you  can  easily  swing  your  legs  out  of  the 
vehicle. Avoid getting out of the vehicle by taking your legs out from behind your body. If you 
then lose your balance, it is difficult to hold on. Especially not with the hood open. 
 

4.15 Behavior in a storm 

 
The Bülk is one of the least sensitive velomobiles to side winds and gusts. Nevertheless, there are a 

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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