If the clip nut loosens itself from the brake arm or the clip screw or brake
arm clip are damaged, the brake arm can rotate on the chainstay. This can
cause the handlebar to move suddenly or the wheel to lock, which can lead to a
fall with serious injuries.
Shifter adjustment
To adjust the shifter, it is imperative to turn the twistgrip from 4th to 3rd gear (in the
case of 7-speed hub: from 5th to 4th gear). Then align the marks in the viewing win-
dow using the clickbox adjustment screw (1) Check this adjustment from time to time.
Maintenance / care
●
The chain sprockets and rear sprockets should be washed at periodic intervals
using a neutral cleaning agent and subsequently lubricated again.
●
If the braking effect of the coaster brake is too strong, the brake sleeve must be
lubricated with special grease (this should be carried out by a specialist).
●
No dot clean gear hubs using water under pressure (strong water jets, high
pressure cleaners etc.) - if water penetrates into the hub, it may malfunction.
●
Do not use strong cleaning agents. Use only a neutral cleaning agent for the
chain. The use of alkaline or acidic cleaning agents, such as rust remover, can
damage the chain and lead to operational faults.
●
Clean your bicycle more regularly in winter so that road salt cannot cause any
damage.
●
Clean dirty chains before oiling them. Allow the cleaning agent to work for a
short time only, then rinse with water. Only oil the chain when it is
completely dry.
Bicycle chain maintenance
Bicycle chains are consumable parts. In the case of hub gear shifters, the chain is worn
after about 3000 km, in the case of chain gear shifters after around 2000 km. A worn
bicycle chain may snap and cause a fall. Have a worn chain replaced by a dealer befo-
re riding the bicycle again.
There are two basic types of bicycle chains:
●
wide bicycle chain (1/2 x 1/8“) for hub gear shifters,
●
narrow bicycle chain (1/2 x 3/32“) for chain gear shifters.
➢
Clean and oil your bicycle chain regularly.
➢
To prevent premature wearing of the chain in the case of chain gear shifters,
use gears with a small chain skew as far as possible.
To check the wear of the bicycle chain, proceed as follows:
➢
Take the part of the chain which is lying on the front chain sprocket between
thumb and forefinger.
➢
Pull the chain away from the chain sprocket.
If the bicycle chain can be clearly lifted, it is worn and should be replaced
with a new one.
In the case of hub gear shifters, the chain tension must be adjusted so that the chain
hanging between the front chain sprocket and the rear sprocket has a vertical play of
one to two centimetres.
If you need to re-tension the bicycle chain, proceed as follows:
➢
Loosen the rear wheel nuts.
➢
Pull the wheel backwards in the dropouts until the play of the bicycle chain
meets the specifications.
➢
Carefully tighten any previously loosened nuts or bolts in a clockwise direction.
Brakes, brake levers and braking systems
This operating manual describes the typical, conventional braking components of an
MTB, ATB, crossbike or racing cycle. In the case of differing components, refer to the
special information or attached manuals. If anything is unclear to you, consult your
bicycle dealer in the case of questions regarding assembly, maintenance and operation.
24
1
DCW BedienA_GB UNI.qxd 24.10.2007 12:50 Uhr Seite 24
