Operation Manual

100 101
PART II
TYPE OF RACK DESIGN RECOMMENDATION & CAUTIONS
CLAMPS ON TIRES / WHEELS
ONLY
This type does not use clamps on any
other part of the frame or fork.
Suitable for both carbon and aluminum frames
This is the best system design because there is no potential
cracking or crushing damage to the frame or fork. Chang wear
is avoided.
FLOATING FORK MOUNT &
REAR WHEEL TRAY
This design functions exactly as a quick
release on your bike. The rear wheel is
clamped in a tray. No other clamps are
used on any other part of the frame.
Suitable for both carbon and aluminum frames
Be sure quick release on rack is properly adjusted and tightly
closed.
The Thule Echelon with ETC Equalized Twin Cam is suitable as
it has an axle oating mechanism, like a standard quick release.
WHEEL CLAMPS & UPRIGHT
ARM CLAMP
In this design, wheels are clamped in
a wheel tray and the bicycle is held
upright by and arm clamping the
downtube.
Do not use on bikes with carbon ber downtubes.
When clamp is tightened the carbon downtube can be broken.
When clamp is looser, chang can cause structural wear.
A loose clamp can allow movement and possible chang damage.
Clean the clamping area to eliminate abrasive particles, pad the
clamping area and properly tighten the clamp.
NON-FLOATING FORK MOUNT
& REAR WHEEL TRAY
With this type, a mechanism pulls the
two sides of the fork in at the same
time, and pulls both sides in the same
distance.
example: Thule Peloton.
Not recommended for either carbon or aluminum bikes.
If one dropout is slightly thicker than the other dropout, all the
clamping force is applied to the thicker dropout. The high force
on the one thicker dropout may crack a carbon dropout. The
thinner dropout may move in the rack causing wear and abrasion,
The fork blade attached to the thicker dropout takes most of the
loads caused by 70 mile per hour wind and bumps. The result
may be damage to your fork.
HANGER RACK
On this type the bicycle hangs on
two arms projecting aft from a trunk
mounted rack
Not recommended for either carbon or aluminum bikes.
Do not use on bikes with carbon ber tubes.
The point loading where the arms contact the underside of the
tubes may crack the tubes. Additionally the lower part of the
bike is dicult to secure, and it may move, causing chang and
structural wear. Additionally when two bikes are mounted on
these racks the contact points between the bikes may be cracked
or chafed, causing structural damage.