MTB/ ROAD BIKE/ TREKKING
7.1.1 Check tting
1. Shake both road wheels vigorously at
right angles to the direction of travel.
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-
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The road wheels must not move in the forks.
The quick release must be closed (see
Chapter 8.8).
There must be no audible creaking or
rattling sounds.
2. Contact your dealer if this check shows
defects of any description
7.1.2 Check the rims
Risk of Personal Injury and Material
Damage!
Worn rims and/or substantial warping or
run-outs may lead to hazardous riding
situations, falling, accidents and material
damage.
•
Worn rims must be replaced and warping or
run-outs repaired!
Risk of Personal Injury and Material
Damage!
With rim brakes: Dirty rims may reduce
braking eciency.
•
Dirty rims must be cleaned immediately.
1. Check rims for wear:
Rims with wear indicators:
Visual check
Rims without wear indicators:
Visual check
•
Fingernail check: Run your ngernail
across the rim shoulder. No scoring
should be felt.
•
If the wear indicator is no longer visible
or if the rim has discernible scoring the
rim must be replaced.
2. Check rims for run-out:
•
Lift the bike up and spin rst the front
and then the rear wheel.
•
Note the distance between the rim and
the brake shoes and on disk brakes the
distance between the rim and the frame
strut or fork leg.
3. Check your rims for dirt, especially oil
and grease.
Dirty rims must be cleaned immedia-
tely (see Chapter 12).
wear indicators
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