Wheels - O2Feel Duma Serie Benutzerhandbuch

Always contact your approved O2Feel reseller
if:
•
Your chain jumps, or
•
You hear an unusual noise, or
•
The gears do not change seamlessly, or
•
The gear changing mechanism, the derailleur or
any other component of the drivetrain system is
not tightened properly, damaged or twisted, or
•
The chain is faulty or worn.
Derailleur Chaintension and wear
When gearshifting is not smooth, check the
tension on the cable.
How do you adjust the tension of the derailleur
cable?
Before adjusting the cable tension, we recommend
loosening the cable, then positioning the adjuster
at the halfway point. This little trick is really useful
if you want to increase or reduce the tension later.
•
Position your chain on the small cog.
•
Manually pull the derailleur cable tight, then
adjust the tightening screw.
•
Check to make sure the gears change smoothly.
•
Adjust the tension with the adjuster to find the
right setting.
•
If the gears struggle to go up: increase the
tension using the adjuster.
•
If the gears struggle to go down: decrease the
tension using the adjuster.
•
Make the adjustments gradually, making sure
the gears change smoothly and increasing/
reducing the cable tension.
It is best to have any type of adjustment done at an
approved O2Feel reseller. However, if any doubt
about the chain wear, use a chain checker gauge
to determine weather the chain is worn or not. If
the chain is worn, please have it replaced at the
approved O2Feel reseller.
Step 1: Place the gauge witht the side that has two
tips facing the right side of the chain and put it
between the rollers.
Step 2: Hold the right side down with the two pins
between the rollers.
Step 3: Press the left side down and read the result
on the gauge at the point where the tip does not
go donw between the rollers further.
When the chain wear is at 0.75% or more, have
the chain replaced by the approved O2Feel
reseller.

2.4.3 Wheels

Checking the wheels
The wheels are the point of contact between the
bike and the ground. Ground surface irregularities
and the weight of the cyclist put a significant strain
on wheels.
The wheels are carefully checked and aligned
before delivery. However, the spokes will align
themselves over the first few miles that you cycle.
Get your wheels checked by your approved
O2Feel reseller after travelling 100 kilometres and,
if necessary, get them realigned. After that, make
sure they are checked regularly when carrying out
maintenance on your bike.
Checking the rims
A worn rim loses stability and is therefore more
likely to get damaged. A misshapen, cracked or
broken rim can cause serious accidents. Stop
riding the bike if you notice any changes to the
rim. Ask your approved O2Feel reseller to check
the damaged rim.
Replace the rim as soon as you notice any marks
(grooves, coloured areas) anywhere on the rim, or
if an engraved marking disappears or any coloured
writing becomes worn.
Tyres
Do not exceed the stipulated inflation pressure for
the tyre. If you do, the tyre could burst.
Pump air into the tyre to achieve at least the
recommended minimum inflation pressure. If the
30