Tech; Wheels - Specialized Roubaix Comp Road Manual De Instrucciones

It's important to your safety, performance and enjoyment to understand
how things work on your bicycle. We urge you to ask your dealer how to do the
things described in this section before you attempt them yourself, and that you
have your dealer check your work before you ride the bike. If you have even the
slightest doubt as to whether you understand something in this section of the
Manual, talk to your dealer. See also Appendix A, B, C and D.
Bicycle wheels are designed to be removable for easier transportation and
for repair of a tire puncture. In most cases, the wheel axles are inserted into
slots, called "dropouts" in the fork and frame, but some suspension mountain
bikes use what is called a "through axle" wheel mounting system.
If you have a mountain bike equipped with through axle front or rear
wheels, make sure that your dealer has given you the manufacturer's
instructions, and follow those when installing or removing a through
axle wheel. If you don't know what a through axle is, ask your dealer.
Wheels are secured in one of three ways:
• A hollow axle with a shaft ("skewer") running through it which has
an adjustable tension nut on one end and an over-center cam on the
other (cam action system, fig.8 a & b)
ADJUSTING NUT
• A hollow axle with a shaft ("skewer") running through it which has a
nut on one end and a fitting for a hex key, lock lever or other tightening
device on the other (through bolt, fig. 9)

4. TECH

A. Wheels
17
CLOSED
CAM LEVER
CLOSED
CUP
CAM LEVER
ADJUST
OPEN
Fig. 8a
ADJUST
OPEN
Fig. 8b