17
ATTENTION!
Have a qualified bike mechanic replace
worn brake pads.
• The braking performance of disc
brakes can significantly be reduced
by oil, care or cleaning fluids. When
cleaning your e-bike or greasing
the chain, make sure that the brake
pads and brake discs aren’t affected.
Greasy brake pads need to be
replaced immediately, brake discs can
be cleaned with a brake cleaner. Avoid
touching the friction surface of brake
discs or brake pads with your fingers.
• Check the brake system for tightness
or bent cable housings before every
ride. The loss of brake fluid reduces
the braking performance or even
causes the brakes to fail. Immediately
see a specialist dealer to repair any
leaks.
13. Gear
Hermansen multi-speed bikes are equipped with
a derailleur gearing system. A Rear Derailleur is
the mechanism that shifts the chain at the Rear
Sprockets.
DANGER!
Practise gear shifting away from
traffic. On the roads this would be too
distracting.
The lower gears are used for climbing and the higher
ones are for descending.
1
2
To shift to a lower gear use your thumb to give the
upper shifter (1) a downwards push. To shift to a
higher gear give the lower shifter (2) a downwards
push.
When shifting on a bike with derailleur gear, it
is important to keep pedalling consistently and
effortlessly until the desired gear is engaged. Avoid
shifting while pedalling strongly.
DANGER!
Adjusting the gear is a job for
experienced bike mechanics only.
Mis-adjustments can cause serious
mechanical damage. Should you have
any problems with the gear, please
contact an experienced bike mechanic.
After a crash, accident or transport
damage you should get the gear checked
by a specialist.
14. Chain
Chains are wear parts but the rider can affect their
service life. Make sure you regularly grease the chain,
particularly before riding in the rain.
• Chains of derailleur gears can often reach
their wear limit after approx. 1,000 to 3,000
km. Replacing a Chain when it is worn will help
extend the life of the more expensive Cassette
and Chainring. You should therefore have an
authorised bike mechanic replace the chain at
regular intervals.
• For bicycles with hub gear and without additional
chain tensioner, the chain tension needs to be
checked at regular intervals and potentially
readjusted by the an authorised bike mechanic to
avoid excessive slack.
• To check for excessive slack, shift to the smallest
gear on the Cassette (if applicable) to create the
greatest amount of slack in the Chain. Clean your
chain with a dry cloth from time to time.
• The chain should only be replaced by a competent
person.
• Apply a suitable lubricant from a specialist shop to
the chain links.
TIP!
Chain slack should be within 10-20 mm
per span. Excessive slack can be caused
by a Chain that is worn and stretched.
A stretched Chain will not sit properly in
the teeth. Over time, gaps between the
teeth of the Sprockets becomes greater,
mirroring the shape of the Chain.
DANGER!
A chain that has not been fitted or
tensioned correctly can come off or tear
and cause a fall. Ask a qualified bike
mechanic to replace the chain for you.
Summary of Contents for Bike One 2021
Page 2: ...2 Bike One ...
Page 3: ...3 Bike Ten ...
