EMG Speedy Go Instruction Manual page 25

Maintenance of the bicycle must be carried out regularly by a qualified
technician.
If you want to check the bicycle yourself, raise the front wheel and swing
the bicycle left and right using the handlebar. If you hear noise with each
movement of the handlebar, probably the steering part is loose.
If you have a feeling of jamming or difficulty while turning left or right, it
is possible that the steering is too tight. In any case, have it checked by
a qualified mechanic.
Grab a pedal and swing it to and from the center line of the bicycle; then
do the same with the other pedal. Do you think something is loose? If so,
have it checked by a qualified bicycle mechanic.
Take a look at the brakes. If they make strange noises or no longer brake
like when the bike was new, it is time to have them replaced by a mecha-
nic from a qualified bike center.
Check the control cables and the cable housing carefully. If you find rust,
they are loose or worn, have them replaced by a qualified bicycle me-
chanic.
Squeeze each pair of contiguous spokes on each side of the wheel
between your thumb and forefinger. If anyone seems loose, have a qua-
lified bicycle mechanic check the tension and alignment of the wheel.
Check if the tires are too worn, or if there are cuts or dents. If necessary,
have them replaced by a qualified bicycle mechanic.
Check if the rims are too worn and if there are dents, bumps and scra-
tches. If you observe any damage to the rim, consult a qualified bicycle
mechanic.
Check that all parts and accessories are still well fixed and tighten those
that are not.
Check for scratches, cracks or discolorations on the frame, especially in
the area around all the joints of the tube, on the handlebar, on the stem
and on the seat post. These are signs of stress fatigue and indicate that
a piece is at the end of its life cycle and needs to be replaced.
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