EMG CY26ABi, Instruction Manual

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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 mechanic 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 mechanic.
Squeeze each pair of contiguous spokes on each side of the wheel between your
thumb and forefinger. If anyone seems loose, have a qualified 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 scratches. 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.