HM Bike DHM, Руководство пользователя

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Disk wheels, specialist wheels
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Disk wheels, specialist wheels
If your DHM bicycle is equipped with disk wheels, trispokes or other specialist wheels, please read
the instructions provided by the manufacturer carefully regarding their use and care.
ABB Hazard Special wheels can exhibit a different riding, braking and steering behaviour than what
you are used to. Trispokes and disk wheels in particular are substantially more sensitive to wind than
conventional wheels. If the rims are not aluminium, they may have a different, possible substantially
worse braking behaviour than you are used to. Practice on a safe, traffic-free piece of land with your
new bike and get used to how it behaves. Otherwise this can lead to falls and serious injury.
Tubeless tyres
If your DHM bicycle is fitted with tubeless tyres, please read the instructions provided
by your manufacturer covering the tyres and rims.
Tubeless tyres may only be used on rims intended for this purpose! This will
be marked on the rims, with the abbreviation “UST” for instance.
Tubeless tyres may only be used with the correct air pressure and the recom-
mended sealant (if required).
The installation and removal from the rim may only be done without tools in the
case of tubeless tyres. Otherwise this could lead to weaknesses. If you do not have
sufficient sealant for preventing damage, a normal tube can be used after removing
the valve from the tubeless system.
Tubular tyres
Tubular tyres may only be used on
rims intended for this purpose! The
corresponding rims do not have rim
flanges but smoothly curving sur -
faces, from the outside inwards.
Tubular tyres may only be used in
the prescribed way and with the
correct air pressure! Attaching tubular
tyres requires expert skills and lots of
experience. Therefore always have
your tubular tyres changed by a specialist
Lights
Safety on a bicycle revolves around SEEING and BEING SEEN. That’s why bright clothes, reflectors
and working lights are vital. It goes without saying that you are not allowed to keep riding at night if
your lights stop working!
Only legal and approved light systems can be fitted to
the bicycle. This also applies for luminescent substances
and reflectors. The StVZO prescribes a light setup where
the middle of the light cone is half as high as the level of
the light. The rear lights have to be attached at a height
of at least 25 cm. Racing bicycles weighing less than 11
kg may be used without fixed lighting. However, riders
have to carry battery-powered lights with them!
Bicycles weighing over 11 kg have to use approved (with official approval seals) dynamo-based
systems. Dynamos are fixed either laterally or as hub dynamos. Lateral dynamos may only be
switched on in standing for safety reasons; they are less effective in the rain and sometimes require
additional lighting.
Hub dynamos are more effective and subject to less
wear (please note: high voltage, do not touch the
clamps while the front wheel is turning!). They can
also be fitted with additional sensors for automatically
turning the system on during darkness or an on/off
switch on the handlebars. Please ensure that when
you remove the front wheel, you disconnect the con-
nection clamps for the hub dynamo first. Then ensure
you connect these on the right hand side (when
facing forward) when fitting the wheel again.
Please pay attention to the enclosed instructions for your lighting system. In the case of con-
ventional lights, the cause of a fault can be the light bulb. You can check and replace the bulb
yourself if you feel that you are capable of doing so. Replacement bulbs can be purchased
from specialist retailers. You are not able to replace the light elements in modern LED lights.
Clean your reflectors and lights on a regular basis. Warm water mixed with cleaning or
washing up liquid is ideal for this. You are able to keep the contact points in good condition
with a suitable spray lubricant.
A working lighting system is vital. You should allow you specialist retailer to carry out any
checks and repairs.
Add-ons
Rack
Racks are usually categorized according to four weight classes (DIN 79121): 5
kg, 10 kg, 18 kg, 25 kg. Other limits apply for special builds.
Warning: Extra weight can considerably change the way your bicycle behaves
during riding. The braking distance is increased! Please also ensure that you
stay within the maximum permitted total weight for your bicycle. In principle,
racks can be mounted at the front or at the rear; while children’s seats should
be installed with special holders at the rear.
Mudguards (fenders)
Ensure that the mudguards on your bicycle fitted correctly, ensuring that their
lower edge is parallel to the edge of the tire. Mudguards can be made of either
metal or plastic and they are held in position by stays. In order to prevent the
front wheel from jamming due to foreign objects picked up, the front wheel
stays have a release mechanism. You should regularly check that mudguards
are securely fastened, and loose stays have to be secured again or replaced.
Damaged mudguards have to be replaced, as loose mudguards can cause
falls!
Tubeless
tyres
Tubular tyres
Hub dynamo
Dynamo
Rack
Mudguards