Radio PSA's.  (Estimated time shown in parenthesis) 
[available to be freely copied: http://www.crankmail.com/bike-psa.html]

(0:10)
Share the road with bicycles.  Cyclists should ride on the right side of 
the road and follow the same rules as other drivers.  It is unsafe to ride 
on the wrong side and it is dangerous to ride on the sidewalk.  Share the 
road.

(0:10)
There is much more to driving a bicycle than balance and steering.  Many 
things we were taught as kids are wrong and some are dangerous.  If you 
want to learn more, check your library for the video Effective Cycling.

(0:10)
Ride a bike to work!  The safest way is by following traffic laws.  
Cyclists who make up their own rules by riding on the wrong side of the 
road or on sidewalks are five times as likely to crash.  Be predictable 
and act like the driver of a vehicle.

(0:15)
Share the road with bicycles.  A motorist passing a bicycle must wait 
until it is safe to pass, then give adequate clearance.  A cyclist should 
try to make it easy for a motorist to pass but only if it is safe.  When 
it is not safe to allow a car to pass, a cyclist should use the full lane.

(0:20)   (Use mid April to late May)
The third week of May is Bike to Work Week.  May is an excellent time to 
try this healthful, non-polluting way to travel.  Cycling is safe and 
enjoyable if you follow the rules of the road.  Cyclists have the same 
rights and the same responsibilities as other drivers.  Drive your bike 
like the vehicle that it is and every week can be Bike to Work Week!

some others 
[http://www.nsc.org/news/nr0522ps.htm]

BICYCLE RIDERS: HELMETS SAVE LIVES (:45)

There are 72 million of us who enjoy bicycling - whether for recreation, 
sport or transportation. With so many people using bikes on the same roads 
occupied by automobiles, the National Safety Council says the most 
important piece of advise is this one - if your feet are on the pedals you 
need a helmet on your head.

This is (name) of (radio station) reminding you that June is National 
Safety Month. More than a half-million people visit emergency departments 
each year for bike-related injuries. Wearing a helmet can reduce the risk 
of head injury by up to 88 percent. Use your head - wear a helmet. For 
more information about bicycle safety and National Safety Month visit 
www.nsc.org.

# # #

BICYCLE SAFETY (:30)

About 700 people, including more than 200 children, are killed each year 
in bike-related incidents.

To help avoid such preventable tragedies here is some bicycle safety 
advice from the National Safety Council and (radio station): know your 
bike's capabilities ... ride single file with traffic...not against it ... 
make safe turns and cross intersections with care ... look carefully 
before riding into traffic ...make sure you're visible to traffic, day and 
night, and remember the most important safety tip of all -- ALWAYS wear a 
helmet. For more information about bike safety and National Safety Month, 
visit www.nsc.org.

# # #

HOORAY FOR HELMETS (:30)

Every summer the sports equipment comes out of the basements and closets: 
everything from bicycles to baseballs. Many sports-related injuries can be 
prevented with the proper equipment. Especially helmets!

    * Make sure you have the right helmet for the sport. For example, 
bicycle helmets are different from horseback riding helmets.
    * Be sure the helmet is properly positioned and firmly secured on your 
head.
* In the event of a fall or incident, have your parents ask the 
manufacturer to check the helmet. The shell and liner may have partially 
collapsed while it was protecting your head.