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KONA OWNER’S MANUAL
KONA OWNER’S MANUAL
WARNING: Never inate a tire beyond the
maximum pressure marked on the tire’s sidewall or
the wheel rim. If the maximum pressure rating for the
wheel rim is lower than the maximum pressure shown
on the tire, always use the lower rating. Exceeding the
recommended maximum pressure may blow the tire
off the rim, which could cause damage to the bike and
injury to the rider and bystanders.
The best and safest way to inate a bicycle tire to the
correct pressure is with a bicycle pump which has a built-in
pressure gauge.
WARNING: There is a safety risk in using gas
station air hoses or other air compressors. They are
not made for bicycle tires. They move a large volume of
air very rapidly, and will raise the pressure in your tire
very rapidly, which could cause the tube to explode.
Tire pressure is given either as maximum pressure
or as a pressure range. How a tire performs under
different terrain or weather conditions depends largely
on tire pressure. Inating the tire to near its maximum
recommended pressure gives the lowest rolling
resistance; but also produces the harshest ride.
High pressures work best on smooth, dry pavement.
Very low pressures, at the bottom of the recommended
pressure range, give the best performance on smooth,
slick terrain such as hard-packed clay, and on deep, loose
surfaces such as deep, dry sand.
Tire pressure that is too low for your weight and the
riding conditions can cause a puncture of the tube by
allowing the tire to deform sufciently to pinch the inner
tube between the rim and the riding surface.
CAUTION: Pencil type automotive tire gauges
can be inaccurate and should not be relied upon for
consistent, accurate pressure readings. Instead, use a
high quality dial gauge.
Ask your dealer to recommend the best tire pressure for
the kind of riding you will most often do, and have the
dealer inate your tires to that pressure. Then, check
ination as described in Section 1.C so you’ll know how
correctly inated tires should look and feel when you
don’t have access to a gauge. Some tires may need to
be brought up to pressure every week or two, so it is
important to check your tire pressures before every ride.
Some special high-performance tires have unidirectional
treads: their tread pattern is designed to work better in
one direction than in the other. The sidewall marking of a
unidirectional tire will have an arrow showing the correct
rotation direction. If your bike has unidirectional tires, be
sure that they are mounted to rotate in the correct direction.
2. TIRE VALVES: There are primarily two kinds of
bicycle tire valves: The Schraeder Valve and the Presta
Valve. The bicycle pump you use must have the tting
appropriate to the valve stems on your bicycle.
The Schraeder valve [Fig. 18a] is like the valve on
a car tire. To inate a Schraeder valve tire remove
the valve cap and clamp the pump tting onto the
end of the valve stem. To let air out of a Schraeder
valve, depress the pin in the end of the valve stem
with the end of a key or other appropriate object.
The Presta valve [Fig. 18b] has a narrower
diameter and is only found on bicycle tires. To
inate a Presta valve tube using a Presta headed
bicycle pump, remove the valve cap; unscrew
(counterclockwise) the valve stem lock nut;
and push down on the valve stem to free it up.
G) SERVICE NOTES FOR KONA DUAL SUSPENSION
While Kona suspension systems are very torsionally
rigid and require less maintenance than a single pivot
design, bearings and bushings will wear out. Bushing
kits and replacement rear stays are available from Kona.
Cartridge bearings give the suspension a smoother ride.
These bearings also require more attention than do
bushings. Contaminated bearings can rust & seize, and
cause frame damage. Regularly inspect the bearings and
make sure that they allow the linkage to move freely.
H) TIRES AND TUBES
1. TIRES: Bicycle tires are available in many designs and
specications, ranging from general-purpose designs to
tires designed to perform best under very specic weather
or terrain conditions. If, once you’ve gained experience
with your new bike, you feel that a different tire might
better suit your riding needs, your dealer can help you
select the most appropriate design.
The size, pressure
rating, and on some
high-performance
tires the specic
recommended use,
are marked on the
sidewall of the tire [see
Fig. 17]. The part of
this information which
is most important to
you is Tire Pressure.
But some wheel rim
manufacturers also specify
maximum tire pressure
with a label on the rim. 27
27
service instructions. If you do not have the
manufacturer’s instructions, see your dealer or contact
the manufacturer.
WARNING: Failure to maintain, check and properly
adjust the suspension system may result in suspension
malfunction, which may cause you to lose control and fall.
If your bike has suspension, the increased speed you may
develop also increases your risk of injury. For example,
when braking, the front of a suspended bike dips. You
could lose control and fall if you do not have experience
with this system. Learn to handle your suspension system
safely [see also Section 4.C].
WARNING: Changing suspension adjustment can
change the handling and braking characteristics of your
bicycle. Never change suspension adjustment unless
you are thoroughly familiar with the suspension system
manufacturer’s instructions and recommendations, and
always check for changes in the handling and braking
characteristics of the bicycle after a suspension adjust-
ment by taking a careful test ride in a hazard-free area.
Suspension can increase control and comfort by allow-
ing the wheels to better follow the terrain. This enhanced
capability may allow you to ride faster; but you must
not confuse the enhanced capabilities of the bicycle with
your own capabilities as a rider. Increasing your skill will
take time and practice. Proceed carefully until you have
learned to handle the full capabilities of your bike.
CAUTION: Not all bicycles can be safely retrotted with
some types of suspension systems. Before retrotting
the suspension of any Kona bicycle, check with Kona to
make sure that what you want to do is compatible with the
bicycle’s design, and whether the warranty will be voided.
Failing to do so can result in catastrophic frame failure.
26
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