18
MAINTENANCE
&
COMPONENTS
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TIRES/WHEELS
The Super73 has 20’’x 4.25 ‘’ (51cm x10.7 cm) rubber tires with inner tubes and a tube liner. The
tires are designed for durability and safety for regular cycling activities. However, tires must be
checked before each use for proper inflation and condition.
Proper inflation, good maintenance and quick replacement will help ensure that the operational
characteristics of your bike will be maintained and dangerous conditions avoided.
Tubes are 20”x4”-1/4 but 2”0x4” also work.
Super73 recommends 20-25 PSI (1.37 and 1.7 bar) for street riding for the front and rear tires on
the Super73. The minimal tightening torque of the wheels is 25 ft/lb (33.89 N m).
It is essential that the proper air pressure is maintained in the tires all the time. Do not under-
inflate or over-inflate your tires. Low pressure can cause loss of control and tires that are too
inflated can burst. Failure to maintain the air pressure rating indicated on the tires may at any time
result in tire and / or wheel failure.
Inflate your tires from a regulated air source with an available manometer. Inflating your tires with
an unregulated air source could over-inflate them, resulting in an exploded tire. When tire wear
becomes obvious or a hole in the tire is found, you must replace the tires and / or tubes before
using the bike, otherwise injury to operators and / or damage to your bike could occur.
To avoid serious injury, make sure all air pressure has been removed from the inner tube before
removing the tire from the rim.
In addition to proper inflation, correct wheel alignment helps to decrease tire wear. If you find a
tire is worn unevenly, have your dealer check the wheel alignment.
CHAIN TENSION
There should be approximately one half inch of movement in the chain up and down at a point half
way between the front and rear sprockets. To change the tension loosen one of the axle-nuts and
move the wheel forward or backward slightly and tighten it up again.
HELMETS / REFLECTORS
A properly fitting ANSI or SNELL, (or CE if you are located in Europe), approved bicycle safety
helmet should be worn at all times when riding your bicycle, or recommended per your local
laws. Always wear a properly fitted helmet which covers the forehead when riding a bicycle. Many
states require specific safety devices. It is your responsibility to familiarize yourself with the laws
of the state where you ride and to comply with all applicable laws, including properly equipping
yourself and your bike as the law requires.
Reflectors are important safety devices which are designed as an integral part of your bicycle.
Federal regulations require every bicycle to be equipped with front, rear, wheel, and pedal
reflectors. These reflectors are designed to pick up and reflect street-lights and car lights in a way
that helps you to be seen and recognized as a moving bicyclist.
Check reflectors and their mounting brackets regularly to make sure they are clean, straight,
unbroken and securely mounted.
DANGER!
Before performing any work on your Super73 electronics system, turn off the system and remove
the battery. Involuntary activation of the Super73 system poses a risk of injury.
