Tech 23
•Ahollowaxlewithashaft(“skewer”)runningthroughitwhichhasanuton
one end and a tting for a hex key, lock lever or other tightening device on the
other (through bolt, g. 9)
•Hexnutsorhexkeyboltswhicharethreadedontoorintothehubaxle(bolt-
on wheel, g. 10)
Your bicycle may be equipped with a different securing method for the front
wheel than for the rear wheel. Discuss the wheel securing method for your
bicycle with your dealer.
It is very important that you understand the type of wheel securing method
on your bicycle, that you know how to secure the wheels correctly, and
that you know how to apply the correct clamping force that safely secures
the wheel. Ask your dealer to instruct you in correct wheel removal
and installation, and ask him to give you any available manufacturer’s
instructions.
4. Tech
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.
A. Wheels
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:
•Ahollowaxlewithashaft(“skewer”)runningthroughitwhichhasan
adjustable tension nut on one end and an over-center cam on the other
(cam action system, g.8 a & b)