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| English
English |
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Note:
If you have a puncture while riding, do not pull out the inner tube com-
pletely. Leave the valve sticking in the rim and first look for the hole where
the air escapes. Pump up the inner tube. When you have found the hole,
look for the corresponding place on the tyre and examine it. Often the
foreign body sticks in the tyre.
Removing Clincher and Folding Tyres
• Screw the valve cap and the fastening nut off the valve and deflate the tyre
completely.
• Press the tyre over its entire circumference from the sides towards the centre
of the rim. This will ease the removal.
• Apply the tyre lever to one bead of the tyre opposite the valve and lever the tyre
out of the rim in this area. Hold the tyre lever tight in its position.
• Slip the second tyre lever between rim and tyre at a point about 10 centimetres
beyond the first one and lever the next portion of the bead over the edge of
the rim.
• After levering a part of the tyre bead over the edge of the rim you should
normally be able to slip off the whole tyre on one side by moving the tyre lever
around the whole circumference.
• Now you can pull out the inner tube. Make sure that the valve does not get
caught in the rim, as this can damage the inner tube.
• Inspect the inflated tube and look for the puncture. A bucket of water may
help you.
• Repair the puncture according to the operating instructions of the repair kit
manufacturer.
• After having removed the tyre, you should check the rim tape. The tape should
lie squarely in the base of the rim covering all spoke ends and should neither
be torn nor brittle.
In the case of double wall rims the tape must cover the entire rim base, but it
should not be so broad as to stand up along the inside edges of the rim trough.
For this type of rim only use rim tapes made of fabric or durable plastic. In case
you are in doubt about the rim tape, contact your STEVENS dealer.
Note:
If your bicycle has thru
axles, observe the oper-
ating instructions of the
fork manufacturer.
Mounting Clincher and Folding Tyres
When mounting a tyre Make sure that no foreign matter such as dirt or sand
gets inside the tyre and you do not damage the inner tube.
• Slip one bead of the tyre onto the rim. Using your thumbs, press the bead over
the edge of the rim over the entire circumference. You should be able to do
this without any tools, regardless of the type of tyre. Stick the valve of the tube
through the hole in the rim.
• 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 tube.
• To finish mounting the tyre start at the point opposite the valve. Using your
thumbs, press the second bead of the tyre over the edge of the rim as far as
you can. Make sure that the inner tube does not get pinched and squashed
between tyre and rim. This is prevented by pushing the inner tube into the tyre
hollow with a finger as you work along.
• 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 to
make the already mounted portion of the tyre slip towards the deepest part of
the rim base. This will ease mounting noticeably on the last centimetres.
• Check again the proper seat of the inner tube inside the tyre and press the last
stretch of tyre over the edge of the rim by using the balls of your thumb. It will
help you to bring the wheel to rest on your hip.
• If this does not work, you will have to use tyre levers. Make sure that the blunt
ends point towards the inner tube and the inner tube does not get damaged.
• Press the valve deep into the tyre so that the inner tube does not get caught
between rim and tyre beads. Does the valve stand upright? If not, dismount
one bead again and reposition the inner tube. To Make sure that the inner tube
does not get pinched between rim and bead, inflate the tyre a little and then
move it sideways back and forth between the sides of the rim. While doing so
you can check whether the rim tape has shifted.
• Inflate the inner tube to the desired pressure. The maximum pressure is indi-
cated on the side of the tyre.
• Check the proper seat of the tyre by means of the “witness line” on the side of
the tyre just above the edge of the rim. Make sure that the witness line is even
with the rim edge all the way around the tyre.
