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Stick the valve of the inner tube through the hole in the rim (a). Inflate
the inner tube slightly so that it becomes round and push it into the tyre
all the way round. Make sure not to leave any folds in the inner tube.
To finish mounting the tyre, start at the opposite side of the valve. Using
your thumbs, press as much of the second bead of the tyre over the
edge of the rim as you can.
Make sure the inner tube does not get pinched and squashed between
a
the tyre and the rim. You can prevent this by pushing the inner tube into
the hollow of the tyre with a finger as you work along it (b).
Work the tyre into the rim by approaching the valve symmetrically from
both sides. Towards the end you will have to pull the tyre vigorously
downwards
towards the deepest part of the rim well. This will ease the job notice-
ably on the last centimetres.
Before fitting the tyre completely on the rim check again whether the
inner tube lies properly inside the tyre and press the last stretch of tyre
b
over the edge of the rim using the balls of your thumbs.
If this does not work, you will have to use the tyre levers (d). Make sure
that the bent ends point towards the inner tube and that the inner tube
does not get damaged.
Push the valve a little into the tyre so that the inner tube does not get
caught between the rim and the tyre beads. Check whether the valve
stands upright. If not, dismount one bead again and reposition the in-
ner tube.
To make sure the inner tube does not get pinched between the rim and
c
the tyre beads, move it sideways back and forth between the sides of
the rim. While doing so, also check whether the rim tape has shifted.
Inflate the inner tube to the desired pressure. The maximum pressure is
indicated on the side of the tyre.
Check whether the tyre is properly seated by inspecting the fine witness
line
the rim all around the tyre. Starting from the maximum tyre pressure
you can now reduce the pressure through the valve to suit your needs.
Please observe the recommended tyre pressure range.
d
70
(c)
to make the already mounted portion of the tyre slip
(e)
on the tyre just above the rim edge. This line should be even to
WHEEL MoUnTInG
Mounting the wheel is done in the reverse order of dismounting. Make
sure the wheel is correctly seated in the drop-outs and accurately cen-
tred between the fork legs or the seat and chain stays. Make sure the
quick-release
(f)
and the drop-out safety tabs are correctly seated.
For more information see the chapter "how to use Quick-releases"
U
You can find information on installing the rear wheel of your
WHEELER pedelec in the chapter "removing and installing
the rear wheel" in your BionX system operating instruc-
tions.
If you have disc brakes, check before mounting the wheel whether
the brake pads rest snugly in their seats in the brake calliper body. The
gaps between the brake pads should be parallel and the wear indica-
tors in their correct position. Make sure you guide the rotor carefully
between the brake pads (g).
If your bicycle has a multi-speed hub, back-pedal, drum or roller
brakes, verify the proper assembly of the individual components and
tension the chain before tightening the wheel nuts by pulling the wheel
backwards. Verify that the amount of play midway between sprockets
and chainring is not more than two centimetres. Make sure there is no
excessive chain slack!
After mounting the wheel and tightening the quick-release, pull the
brake lever (several times, if you have disc brakes). To do so, lift the
WHEELER bicycle off the ground and spin the wheel with your hand.
With the wheel spinning the rotor should not drag along the brake cal-
liper or the brake pads and the rim should keep off the (rim) brake pads.
G
Immediately put back the Bowden cable of rim brakes after
installing the wheel!
(h)
G
Remount the brake arms of hydraulic rim brakes immedi-
ately and close the quick-release! Ensure that the brake
arms do not touch either the rim or the tyre or the spokes
when the wheel turns.
G
Before setting off again check that the brake surfaces and/
or rotors are still free of grease or other lubricants after the
wheel mounting.
G
Check whether the brake pads hit the rotors or brake sur-
faces of the rims. Check the seating of the wheel attach-
ment. Always do a brake test as described in the chapter
"before every ride"!
.
e
f
f
g
h
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