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The Kryptonite Series 2 lock has been a great lock, but the Transit FlexFrame Bracket was
very confusing for me and the included instructions weren't much help. Here's what I've
learned. Here's the bracket that your U-lock snaps
into while you're riding your bicycle around. Note that the top rotates around, which allows
you to change the orientation of the mounted U-lock relative to your bike.
Here's the bracket attachment on the U-Lock. Notice this screw on it. Unscrewing this a
little bit with the included hex key also allows you to change the orientation of the
Ulock relative to the mounted bracket. With these two adjustments, you have an enormous
amount of flexibility in where you can have your U-Lock mounted while riding. Take
these two pieces and play around with different spots on your bicycle to hold your
U-lock. You could mount it on your top tube and have the lock hang down and parallel to
your bicycle, or you could mount it to your seat tube with the U-lock facing forward,
which is the traditional mounting point. Or you
could mount it along your Down tube. Make sure the spot you choose won't interfere with
the movement of your shifter and brake cables and that your U-Lock won't be in the way of
your moving legs. Once you've found a good place where you'll
hang your U-lock on your bicycle and you've oriented the black plastic bracket and the
swiveling metal piece of your U-lock to their proper positions, you can start the mounting
process. Once you start mounting the bracket, you will be unable to rotate it, so be sure
it's in the position you want before you start the process.
Here's the rubber grip strip that's going to go onto the nylon belt. This helps the
mount grip to your bicycle frame and prevents it
from sliding around. When attaching to thick bicycle frame tubes, such as on my bicycle,
you can use the entire length of the grip. If
you have a thick tube, and wish to use the full rubber strip, I recommend threading the
nylon belt back through one of the middle rubber patches, as my nylon belt started
slipping down beneath the rubber strip. For thinner tubes, such as my demonstration tube,
you'll want to use a subset of them. When you mount it, make sure most of the rubber
is facing inwards, so it sits between the nylon
belt and your bicycle tube. Push the rubber grip as far up the attached end as you can.
Here's my demonstration bicycle frame tube, yours will still be part of your bicycle when
you do your install. Wrap the nylon belt around the tube, thread the belt through the
slit on the other side of the piece of metal, and make it as tought as you can.
Next, place the plastic bracket overtop, and while still holding the nylon belt taut, you
may want a second person to help during this step. Screw in the screw with the included
hex key and keep screwing until it's tight. I recommend only holding the short end while
you're tightening it down, because I broke the screw. If you break yours too, the screw
is a Hex Cap Screw of size #8-36, also known
as a #8 Fine, with length of 3/4 inches. Just a reminder, the flexible cable that comes
in this package is meant to lock up additional parts of your bike, primarily your
wheels and not your frame. Always use the ULock to secure your bicycle frame to an immovable
object first, and use the cable to secure your wheels or other items you don't
want stolen to the U-Lock. Looping the flex cable around a wheel rim and then through
one of its eyelets allows you greater length of
usable cable.