Giant momentum Anleitung Seite 7

manufacturer or from your dealer. If you need to make an adjustment at home or in the field, we urge you to
exercise care, and to have the fasteners you worked on checked by your dealer as soon as possible.
WARNING: Correct tightening force on fasteners –nuts, bolts, screws– on your bicycle is important.
Too little force, and the fastener may not hold securely. Too much force and the fastener can strip
threads, stretch, deform or break. Either way, incorrect tightening force can result in component failure,
which can cause you to loose control and fall.
Make sure nothing is loose. Lift the front wheel off the ground by two or three inches, then let it bounce on
the ground. Anything sound, feel or look loose? Do a visual and tactile inspection of the whole bike. Any loose
parts or accessories? If so, secure them. If you're not sure, ask someone with experience to check.
Tires & Wheels: Make sure tires are correctly inflated (see Section 4.G.1). Check by putting one hand on the
saddle, one on the intersection of the handlebars and stem, then bouncing your weight on the bike while looking
at tire deflection. Compare what you see with how it looks when you know the tires are correctly inflated; and
adjust if necessary.
Tires in good shape? Spin each wheel slowly and look for cuts in the tread and sidewall. Replace
damaged tires before riding the bike.
Wheels true? Spin each wheel and check for brake clearance and side-to-side wobble. If a wheel wobbles
side to side even slightly, or rubs against or hits the brake pads, take the bike to a qualified bike shop to have the
wheel trued.
CAUTION: Wheels must be true for rim brakes to work effectively. Wheel truing is a skill which
requires special tools and experience. Do not attempt to true a wheel unless you have the knowledge,
experience and tools needed to do the job correctly.
Wheel rims clean and undamaged? Make sure the rims are clean and undamaged at the tire bead and, if
you have rim brakes, along the braking surface. Check to make sure that any rim wear indicator marking is not
visible at any point on the wheel rim.
WARNING: Bicycle wheel rims are subject to wear. Ask your dealer about wheel rim wear. Some
wheel rims have a rim wear indicator which becomes visible as the rim's braking surface wears. A
visible rim wear indicator on the side of the wheel rim is an indication that the wheel rim has reached its
maximum usable life. Riding a wheel that is at the end of its usable life can result in wheel failure, which
can cause you to lose control and fall.
Brakes: Check the brakes for proper operation (see Sections 4.C). Squeeze the brake levers. Are the brake
quick-releases closed? All control cables seated and securely engaged? If you have rim brakes, do the brake
pads contact the wheel rim squarely and make full contact with the rim? Do the brakes begin to engage within an
inch of brake lever movement? Can you apply full braking force at the levers without having them touch the
handlebar? If not, your brakes need adjustment. Do not ride the bike until the brakes are properly adjusted by a
professional bicycle mechanic.
Wheel retention system: Make sure the front and rear wheels are correctly secured. See Section 4.A.
Seat post: If your seat post has an over-center cam action fastener for easy height adjustment, check that it is
properly adjusted and in the locked position. See Section 4.B.
Handlebar and saddle alignment: Make sure the saddle and handlebar stem are parallel to the bike's center
line and clamped tight enough so that you can't twist them out of alignment. See Sections 3.B and 3.C.
Handlebar ends: Make sure the handlebar grips are secure and in good condition. If not, have your dealer
replace them. Make sure the handlebar ends and extensions are plugged. If not, have your dealer plug them
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