The document provides guidance on how to choose and use pumps for bicycles with either presta or schrader valves. It details the characteristics of each valve type, the correct procedure for inflating tires with each, and the importance of checking bike components like suspension and tire pressure. Additionally, it mentions tools and accessories related to tire inflation.

1. Should you leave it
behind or…
RUNNING
FLAT?
…carry it home?

2. Should have bought
Wait for help? that portable pump…
Before you shop
for one, know
your bike first.

3. LOOK AT YOUR
WHEELS Are the inner tubes fitted
with Presta Valves?
Also known as:
Sclaverand Valve
or French Valve

4. Presta Valves
-are found in inner tubes of high pressure road style and many mountain bicycle.
-lighter and smaller in diameter (6mm).
-rims of bicycles drilled for Presta valves cannot accommodate the wider Schrader
valves (8mm).
-allows a smaller hole to be drilled in the rim.
-have a captive knurled nut to hold the core tight.
To pump inner tube wth
Presta Valves:
-knurled nut need to be loosen before
you can pump tube up.
-re-tighten the valve nut to keep air
from escaping after inflating the tube.
a lock nut to secure the stem at the wheel rim.

5. Internal Components (enlarged)
pin pushed in What about the ones with the
Schrader Valves?
-often seen on bicycles with wide rims
and tires.
closed valve
-have a removable valve core
-have a spring-loaded valve mechanism.
To pump inner tube
with Schrader Valves:
-there is a small pin in the centre of the
valve opening which must be pushed in
to put air in or to let air out.

6. Each type of valve requires a
different type of pump fitting
but…
…an
adaptor
can be fitted to permit the
Presta valve
(6 mm)
to be connected to a pump with a
Schrader chuck
(8mm).
What else must you check on?

7. Is yours a
full-suspension bike?
That
comes
with… Forks
Disc brakes
YES?
Shock Absorber

8. Go get a
TYRE and SHOCK PUMP

9. …to avoid damaging the shocks
CHECK SUSPENSION PRESSURE REGULARLY
run on optimal pressure
for your weight and
riding conditions

10. Maximum Pressure
300psi
for fork or shock
Introducing the
Airace Dual Jet TS Rubber Tips and Valve Covers
Mini Pump
Schraeder Valve with extractable flexy hose

11. Riding on
under-inflated tires
can cause flats and
damage your wheels
Concealed Tyre Pump
with lever to lock
valve in place
Presta/Schraeder
reversible valve core
with a knurled cap

12. Schrader/Presta
Valve Nut
Valve Adaptor Fits on Presta Valve Stem
Threaded Schrader Rubber Gasket
Spare Presta:
To Use Presta Pump on Schrader Valve

13. Lever
Maximum Pressure
80psi
To pump tyre, lift up
lever
to lock
Presta / Schrader Valve
in place.

14. Comes with
Bracket for Dual Jet TS
(Tyre & Shock) Pump
to mount to your bike for use on the
road or trails…
nuts x2 provided

15. Created with thanks to:
Microsoft Office
http://office.microsoft.com/en-us/
and contributors at Wikipedia
http://en.wikipedia.org/wiki/Main_Page
Author StromBer
http://en.wikipedia.org/wiki/File:BrakeDiskVR.JPG
Photo taken by Aezram
http://en.wikipedia.org/wiki/File:Presta_valve_in_context.jpg
Autor: Marcela
http://en.wikipedia.org/wiki/File:Presta_valve_close.jpg
Author A7N8X
http://en.wikipedia.org/wiki/File:Valvola_Schrader.jpg

16. Now you know. Go make the right choice.
Jom Johan Trading and
Services
No 43A, Jalan Prima Saujana 1/1A
Taman Prima Saujana Sek 1
43000 Kajang, Selangor
Tel: 03-87369398
Email: jomjohan@zoho.com
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http://www.slideshare.net/GreenBeingNancy
http://jomjohan.blogspot.com/