5. WHEEL REFLECTORS: The trailer comes
with two spoke reflectors which mount onto the
spokes of the trailer wheel.
A) Reflectors should be mounted 90 degrees
from the valve stem, Fig. 13. The reflectors
should be installed by weaving them through
the spokes. The reflectors attach to the spoke
with the white slotted attachment "screw", Fig.
14. Remove attaching screw from reflector.
Place reflector in position between wheel
spokes and centered on a spoke approximately
90 degrees from valve stem.
B) Install screw, Fig. 14, over spoke and into
receiving hole of reflector. Using a screwdriver,
turn screw 90 degrees clockwise to lock reflector
in position. Repeat the above steps for the
second reflector to be installed opposite the
position of the first reflector. This reflector
configuration will keep the trailer wheel balanced
and vibration free.
6. YAK & IBEX WHEEL INSTALLATION
USING QR (FIG. 15): NOTE: Follow all
instructions exactly. If you are unsure how to
operate the quick release, please consult your
bicycle dealer or contact BOB. Fig. 15 shows
the anatomy of the quick release.
A) Remove adjust nut and one spring from the
quick release.
B) Insert the quick release rod through the hole
in the axle.
C) Install the second spring with the small end
pointing towards the hub then install adjust nut.
D) Slide wheel into the dropouts, FIG. 16, and
confirm wheel is centered between the wheel
stays.
IMPORTANT: The quick release is NOT a nut
and bolt system. It is a cam-activated tightening
mechanism. Tighten the QR as follows:
E) Move the QR lever perpendicular (at a 90
degree angle) to the trailer, FIG. 16.
F) Turn the adjusting nut until it comes in
contact with the trailer dropout.
G) Move the quick release lever to the closed
position, FIG. 17. The word CLOSE should be
clearly visible on the lever and it should be
parallel to the wheel stay.
H) NOTE: It should require considerable
pressure to close the lever when it is properly
adjusted. If you do not feel this resistance,
turn the quick release lever back to the adjusting
position, FIG. 16, and tighten the adjust nut
by hand (it is not necessary to use tools) one
or two more turns in the clockwise direction
then move the quick release lever to the closed
position, FIG. 17. When properly adjusted, it
requires 80-105 inch - pounds of torque to
move the lever to the fully closed position.
7. SAFETY FLAG: IMPORTANT: The flag
is extremely important in making you and your
trailer visible to others. Always make sure the flag is
correctly installed when using your trailer.
A) Press the two metal ends (silver) of the flag sections
together making sure they insert into one another
completely.
B) Install completely into the flag tube. On the YAK
the flag tube is located on the left side of the cargo
stop, FIG. 18. On the IBEX it is located in the middle
of the shock tower, FIG. 19.
8. BOB QUICK RELEASE (QR) INSTALLATION:
IMPORTANT: Bicycle manufacturers use a large
variety of components and materials to build their
bikes and the thickness of the rear wheel dropouts
vary greatly. It is extremely important to have your
BOB QR sized to the appropriate length and correctly
installed on your bike. Please note the dropout inside
dimension assumes that the dropouts are firmly
pressed against the hub axle over locknuts, alleviating
any gap between the two and allowing for an accurate
measurement. The QR's primary role is to secure the
rear wheel to your bike, and secondarily, it is the
structural link between the bike and trailer. For a QR
to work properly, the QR rod must extend past the
dropout on the derailleur side by a minimum of 3/8
inch (10mm) and maximum of 3/4 inch (19mm). Fig.
20 shows the anatomy of the BOB Quick Release.
A) Remove the bike's rear QR. Remove the adjust
nut and one conical spring from the BOB QR and
install into the rear wheel axle hole on the non-derailleur
side.
B) With the QR cam lever in the closed position (note
that "CLOSE" is visible on the cam lever) push the
quick release through the bike's rear axle until it
contacts the bike frame dropout face.
C) Check for a minimum of 3/8 inch (10mm) and
maximum 3/4 inch (19mm) of threaded rod extending
past the dropout face, Fig. 21. IMPORTANT: If the
amount of rod extending past the dropout face is less
than 10mm, you will
need a longer quick
release. Please consult
the BOB Quick Release
Model table at the end
of this manual to find the
correct QR for your bike.
If the amount of rod is
greater than 19mm, see
the next section:
"TRIMMING THE BOB
QR ROD". If you do not
understand this section,
contact your local bike dealer or call BOB for help.
D) Install the 2nd conical spring onto the QR rod
(small hole first) and then the adjust nut.
E) With the QR lever perpendicular (at a 90 degree
angle) to the frame, Fig. 22, tighten the adjusting nut
clockwise until it is snug against the dropout face.
F) Move the QR lever until "CLOSE" is visible on the
lever, Fig. 23, and it is parallel to the frame.
IMPORTANT: for highest strength, it should require
considerable pressure to close the QR lever when it
is properly adjusted and tightened.
G) If you do not feel this resistance turn the quick
release lever back to the adjusting position, Fig. 22.
Tighten the QR adjust nut by hand (it is not necessary
to use tools) one or two more turns in the clockwise
direction. Proper adjustment requires 80 to 105 inch
- pounds of torque to move the lever to the fully
"CLOSED" position.
9. TRIMMING THE BOB QR ROD: If your QR rod
measurement (see above section, step "C") exceeds
3/4 inch (19mm), proceed with the following:
A) If your measurement is 25 mm (for example),
subtract 19 mm (max. length) to determine length of
rod to be cut. (25 - 19 = 6mm.) As a general rule, it
is recommended to maximize the length of the rod.
B) Thread a 5mm x .8mm nut or threading die onto
the QR rod past the area to be cut. (after trimming
the QR rod, the nut / die will clean up the threads
when it is removed).
C) Clamp the QR rod in a vise, being careful not to
damage the threads,Fig. 24.
D) Measure from the tip of the QR rod and cut the
rod with a metal cutting saw.
E) Using a file, shape the end of the rod into a conical
shape.
F) Remove the nut (or die) and verify the QR rod has
been cut to the proper length by repeating steps B
and C in the previous section then complete QR
installation by following steps D through G in previous
section.
10. TRAILER ATTACHMENT: Now that the BOB
quick release is correctly installed, attach the trailer
to the quick release. To do this correctly, follow the
steps below:
A) The stainless steel pivoting BOBBINS on the quick
release skewer are asymmetrical as shown in Fig.
20. This asymmetrical design allows the BOBBINS
to be reversed, allowing for a variance of approximately
13mm in outside dimensional span of the bike's
dropouts.
B) With the bike stabilized and the trailer unloaded,
check the fit between the fork hooks and the slots
of the BOBBINS. It is easiest to do this with the bike
in the upright-position and trailer straight behind the
bike. Stand on the left side of the bike facing towards
the trailer. Allow the bike seat to rest against your
hip. Bend at the hips and lift trailer with both hands, Fig. 25, and place the fork hooks on the
quick release BOBBINS. If the hooks do not fit into the BOBBIN slots by slightly expanding
or compressing the fork, it will be necessary to reverse the BOBBINS. Fig. 26 shows a situation
where the hooks do not fit easily and the BOBBINS need to be reversed.
C) With the quick release installed, and using a 4mm Allen wrench, remove the BOBBIN
retaining screws, Fig. 20, on both the left and right sides. Remove the BOBBINS and reverse
them noting the position of the lock and flat washers.
D) With the BOBBINS reversed, reinstall the retaining screws and lock washers. Tighten the
retaining screws securely.
E) Attach the trailer by aligning the slots of the BOBBINS with the slots in the fork hooks. Fig.
27 shows the fork hooks correctly installed on the BOBBINS.
F) With the trailer hooks placed on the bobbins, insert the pin in the hole in the front edge of
the hook. Slide the pin under the bobbin and into the hole in the back edge of the hook.
Rotate the pin up, toward the button head post on the hook. To secure the pin, it is necessary
to press it downward and toward the hook. When properly installed, the pin fits between the
hook and the head on the button head post, as shown in Fig. 28. The rubber lanyard retains
the pin when not installed.
IMPORTANT: The pins are CRITICAL to keeping the trailer attached to the BOB Quick
Release. Inspect pins for proper installation every time you ride. Incorrectly installed pins
can allow the trailer to detach from the bicycle and cause a severe accident. Please see your
dealer or call BOB if you do not understand
the pin installation procedure.
11. SHOCK STIFFNESS ADJUSTMENT
(IBEX ONLY): The IBEX trailer has three
shock stiffness settings depending on the
weight of the load you are carrying. It is
important to correctly adjust the shock each
time you change the load in the trailer to keep
from bottoming out the suspension system.
Repeated bottoming out of the suspension
system will shorten the life of the trailer frame,
swing arm, and shock assembly. To adjust
the suspension stiffness proceed as follows:
A) Unweight the trailer wheel by lifting the
YAK/IBEX OWNERS MANUAL (800) 893-2447 www.bobgear.com
13501 South Ridge Drive Charlotte, North Carolina 28273
FIG.7
Upper Axle Bolt Installation.
Allen
Screw
Axle Washer
FIG.9
Correct orientation of the reflector
on the rear fender.
FIG.11
Attachment of fender to trailer
frame.
FIG.10
Attach the fender bracket to the
fender with mounting hardware
as shown.
FIG.13
Wheel reflector correctly positioned.
FIG.12
Attachment of fender bracket to dropout
eyelet.
FIG.14
Wheel reflector "screw".
FIG.16
QR lever perpendicular to drop out face.
FIG.17
QR lever closed.
FIG.18
YAK flag tube.
FIG.19
IBEX flag tube.
Standard QR Anatomy.
FIG.15
Quick Release Lever
Cam Housing
Rod
Adjusting Nut
Conical
Springs
BOB QR Anatomy.
FIG.20
Conical
Springs
Retaining
Screw
Lock
Washer
Flat
Washer
Bobbin
Lever
Rod
Adjusting Nut
Lock
Washer
Flat
Washer
Retaining
Screw
Bobbin
FIG.21
Measuring threaded QR rod extending past drop
out face. The QR must be in the closed position.
FIG.8
Pivot Axle Aligned With holes in
Tower.
Nut
Pivot
Bolt
Washers
2
OMT01C
