PROPAIN tyee 2020 - Service and Maintenance Intervals

// MANUAL
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 PROPAIN or your dealer to recommend the best tire pressure for the kind of riding you
will most often do, and have a bicycle 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 (g. 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 an-
other appropriate object. The Presta valve (g. 18b) has a narrower diameter and is only found
on bicycle tires. To inate a Presta valve tire 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. Then push the pump head on to the valve head, and inate. To inate a
Presta valve with a Schraeder pump tting, you’ll need a Presta adapter (available at your bike
shop) which screws on to the valve stem once you’ve freed up the valve. The adapter ts into
the Schraeder pump tting. Close the valve after ination. To let air out of a Presta valve, open
the valve stem lock nut and depress the valve stem.
WARNING: We highly recommend that you carry a spare inner tube when you ride
your bike, unless the bike is tted with tubeless tires. Patching a tube is an emergency
repair. If you do not apply the patch correctly or apply several patches, the tube can fail,
resulting in possible tube failure, which could cause you to lose control and fall. Replace a
patched tube as soon as possible.
5. SERVICE
WARNING: Technological advances have made bicycles and bicycle components
more complex, and the pace of innovation is increasing. It is impossible for this manual
to provide all the information required to properly repair and/or maintain your bicycle. In
order to help minimize the chances of an accident and possible injury, it is critical that
you have any repair or maintenance which is not specically described in this manual
performed by PROPAIN or a bicycle dealer. Equally important is that your individual
maintenance requirements will be determined by everything from your riding style to geo-
graphic location. Consult PROPAIN or your dealer for help in determining your maintenance
requirements.