frogbikes.com
Frog Bikes
Owner’s Manual
3
rd
Edition
2014
Unusual noises:
Either a crack or delamination can cause creaking noises while riding. Think about
such a noise as a serious warning signal. A well maintained bike will be very quiet and
free of creaks and squeaks. Investigate and find the source of any noise. It may not be
a crack or delamination, but whatever is causing the noise must be fixed before riding.
WARNING
: Do not ride a bicycle or component with any delamination or crack.
Riding a delaminated or cracked frame, fork or other component could lead to
complete failure, with risk of serious injury or death.
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 bikes and their components.
Aftermarket “Super Light” components
Think carefully about your rider profile as outlined above. The more you fit the “shorten
product life” profile, the more you must question the use of super light components.
The more you fit the “lengthen product life” profile, the more likely it is that lighter
components may be suitable for you. Discuss your needs and your profile very
honestly with your stockist. Take these choices seriously and understand that you are
responsible for the changes.
A useful slogan to discuss with your stockist if you contemplate changing components
is “Strong, light, cheap – pick two.”
Original equipment components
Bicycle and component manufacturers test the fatigue life of the components that
are original 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.
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 below). 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, ask your stockist to check 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.
2. Adjusting your coaster brake
Coaster brake service and adjustment requires special tools and expert
knowledge. Do not attempt to disassemble or service your coaster brake. Take
the bike to your stockist.
APPENDIX B
APPENDIX C
