Pacific Cycles FROG - Manual (Page 12)

riese und müller GmbH Frog Manual
· The gear-change mechanism for the hub gear must also be uncoupled. Follow the instructions from the hub gear
manufacturers. Undo the axle nuts with a 15mm spanner.
· Lift the bike a little and give the wheel a slap – it should fall out and down.
· It may be helpful to lift the chain off the sprocket for better wheel removal.
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Removing the tyre
· Press the tyre from the edges of the rim towards the middle, around the whole tyre. This makes removal easier.
· Put the tyre levers to the left and right of the valve, and hook them under the bead of the tyre. Lift the edge of the tyre over
the rim edge. Hold the levers in this position.
· Push the second lever about 10 cm from the first and again lift the tyre bead over the rim.
· After part of the tyre bead is over the rim, the rest of the bead can usually be lifted off just by pushing the tyre lever around
the rim.
· Now you can remove the inner tube. Take care that the valve doesn’t get caught in the rim, and that the inner tube isn’t
damaged.
· Repair the punctured inner tube, following the instructions from your puncture repair kit.
· If you have removed the tyre, you should check the rim tape. The tape should be seated evenly, and should not be damaged
or torn, and must cover all the spoke holes. If you are in any doubt, consult your dealer.
· If necessary, the second tyre bead can be easily pulled off the rim.
Fitting the tyre
When you re-fit the tyre, be careful that no foreign bodies like sand or mud get into the inside, and that you do not damage the
inner tube.
· Put the rim over one tyre bead. Push this bead completely into the rim using your thumbs. This process should be possible
without tools for any tyre. Then put the valve through the hole in the rim.
· Pump up the inner tube slightly, so that it goes into shape, and place it completely inside the tyre. Check that it’s not folded
or creased anywhere.
· Start pushing the final tyre bead onto the rim, starting opposite the valve. Push the bead over the rim with your thumbs as
far as you can.
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· Check that the inner tube isn’t caught between tyre and rim, where it could get pinched. Push the inner tube back to the
centre of the tyre with your index finger.
· Work evenly around both sides, moving towards the valve. At the end you should pull the tyre forcefully downwards, so that
the part you’ve already mounted can move into the deeper centre of the rim. This makes getting the last few centimetres on
noticeably easier.
· Check the position of the inner tube again, and push the tyre over the rim with the ball of your hand.
· If this doesn’t work, you will need to use a tyre lever. Be careful that the blunt edge is towards the inner tube, and that the
inner tube is not damaged.
· Push the valve inwards, so that the inner tube does not get pinched under the tyre bead.
· Is the valve straight? If not, you need to take off one side of the tyre and re-arrange the inner tube. If you want to be totally
sure that the inner tube isn’t getting caught under the bead, you should half-pump up the tyre and push it back and forth
around the whole rim. This also lets you check that the rim tape hasn’t moved.
· Pump the tube up to the desired pressure. The maximum allowable pressure is printed on the side of the tyre (see page 32).
· Check that the tyre is properly seated using the mounting line on the tyre side-wall. It is important that the line is a
constant distance from the top of the rim the whole way round the tyre.
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Mounting the wheels
Mounting the wheels follows the reverse procedure to their removal. Ensure that the wheels fit perfectly into the dropouts, and
run centrally in the front forks or rear swing-arm. Note that the plate of the kickstand has to be at the inner face of the drop out
and the washer at the outer face of the drop out. Do not inflate the tyre before mounting the wheel.
Danger
: Re-hook the brake cable in position and check before you ride that the brake blocks make proper contact with the rims. -
Check the axle bolts. - Check that after the repair the braking surfaces are still free from grease or other lubricants. - It is essential
that you test your brakes! - Errors in mounting wheels can lead to loss of control, and could lead to serious accidents.
Finally check that the tabbed fixing washers are correctly in position, and tighten the axle nuts to the correct torque (40Nm).
Tighten the reaction arm bolt with a torque of at least 6Nm. Mount the shifhter cable.