IMPORTANT: If your QR rod measurement (see above section, step
"3") exceeds 3/4 inch (19mm), proceed with the following:
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.
1) 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).
2) Clamp the QR rod in a vise, being careful not to damage the
threads, Fig. 5.
3) Measure from the tip of the QR rod and cut the rod with a metal
cutting saw.
4) Using a file, shape
the end of the rod into
a conical shape.
5) Remove the nut (or
die) and verify the QR
rod has been cut to
the proper length by
repeating steps 2 and
3 in the previous
section then complete
QR installation by
following steps 4
through 7 in previous
section.
Now that the BOB QR is installed, attach the trailer to the bike. To
do this correctly, follow the steps below:
Attach and detach the trailer ONLY when it is in a straight line with
the bike. You can bend the fork otherwise. It is easiest to attach and
detach trailer when it is unloaded.
1) The stainless steel
pivoting BOBBINS on the
quick release skewer are
asymmetrical as shown
in Fig. 1. 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.
2) 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. 6,
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. 7 shows a
situation where the hooks do not
fit easily and the BOBBINS need
to be reversed.
3) With the quick release installed,
and using a 4mm Allen wrench,
remove the BOBBIN retaining
screws, Fig. 1, on both the left
and right sides. Remove the
BOBBINS and reverse them
noting the position of the lock and
flat washers.
4) With the BOBBINS reversed, reinstall the retaining screws and
lock washers. Tighten the retaining screws securely.
5) Attach the trailer by aligning the slots of the BOBBINS with the
slots in the fork hooks. Fig. 8 shows the fork hooks correctly installed
on the BOBBINS.
6) 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. 9.
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.
BOB Trailers Inc. takes pride in its workmanship and strives to
manufacture the best products possible. Therefore, we warranty our
BOB QR against defects in material and workmanship subject to the
conditions listed below. Since no product is indestructible, it does
not cover defects attributable to or resulting from normal wear, abuse
or alteration.
Components are warranted for one year.
Warranty is only valid for the original purchaser.
Proof of purchase is required to exercise this warranty.
Labor and transportation are not included.
Normal wear, neglect, abuse, accidents, improper assembly or
maintenance, or the installation of parts or accessories not compatible
with the original intended use of the trailer, as sold, are not covered
by this warranty.
Warranty claims must be made through an authorized dealer.
This warranty is limited to the replacement of the defective part.
BOB Trailers shall in no event be responsible for consequential or
special damages.
This limited warranty is the only express or implied warranty
applicable to BOB Trailers. Any implied warranties, including warranties
of merchantability and fitness shall be limited in scope and duration
in accordance with this limited warranty.
Caution
Limited warranty
TRIMMING The BOB QR
trailer attachment
OMA34B
QR with die in place and clamped for cutting
Correct position for trailer attachment
Bobbin spacing not aligned with hook
Fork hooks correctly installed
Pin Correctly Installed
Hook
Bobbin
Lanyard
Button Head Post
Pin
FIG.5
FIG.6
FIG.7
FIG.8
FIG.9
