PROPAIN tyee 2020 - Understanding Components; Coaster Brake

// MANUAL
C. UNDERSTANDING COMPONENTS
It is often necessary to remove and disassemble components in order to properly and carefully
inspect them. This is a job for a professional bicycle mechanic with the special tools, skills
and experience to inspect and service today’s high-tech high-performance bicycles and their
components.
Aftermarket “Super Light” components
Think carefully about your rider prole as outlined above. The more you at the “shorten
product life” prole, the more you must question the use of super light components. The more
you at the “lengthen product life” prole, the more likely it is that lighter components may be
suitable for you. Discuss your needs and your prole very honestly with PROPAIN. Take these
choices seriously and understand that you are responsible for the changes. A useful slogan to
discuss with PROPAIN if you contemplate changing components is “Strong, Light, Cheap –pick
two.”
Original Equipment components
Bicycle and component manufacturers tests the fatigue life of the components that are origi-
nal equipment on your bike. This means that they have met test criteria and have reasonable
fatigue life. It does not mean that the original components will last forever. They won’t.
APPENDIX D
COASTER BRAKE
1. How the coaster brake works
The coaster brake is a sealed mechanism which is a part of the bicycle’s rear wheel hub. The
brake is activated by reversing the rotation of the pedal cranks (see g. 5). Start with the
pedal cranks in a nearly horizontal position, with the front pedal in about the 4 o’clock position,
and apply downward foot pressure on the pedal that is to the rear. About 1/8 turn rotation will
activate the brake. The more downward pressure you apply, the more braking force, up to the
point where the rear wheel stops rotating and begins to skid.
WARNING: Before riding, make sure that the brake is working properly. If it is not
working properly, have the bicycle checked by a bicycle dealer before you ride it.
WARNING: If your bike has only a coaster brake, ride conservatively. A single rear
brake does not have the stopping power of front-and-rear brake systems.