If Your Bicycle Sustains An Impact - Specialized BICYCLE Owner's Manual

1.C), don't ride the bike. Have your dealer check the brakes.
If the chain won't shift smoothly and quietly from gear to gear, the derailleur is
out of adjustment. See your dealer.
6. Every 25 (hard off-road) to 50 (on-road) hours of riding: Take your bike to
your dealer for a complete checkup.
B. If your bicycle sustains an impact:
First, check yourself for injuries, and take care of them as best you can. Seek
medical help if necessary.
Next, check your bike for damage.
After any crash, take your bike to your dealer for a thorough check. Carbon
composite components, including fames, wheels, handlebars, stems, cranksets,
brakes, etc. which have sustained an impact must not be ridden until they have
been disassembled and thoroughly inspected by a qualified mechanic.
See also Appendix B, Lifespan of your bike and its components.
WARNING: A crash or other impact can put extraordinary stress on
bicycle components, causing them to fatigue prematurely.
Components suffering from stress fatigue can fail suddenly and
catastrophically, causing loss of control, serious injury or death.
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