first of all i want you to welcome aboard sir ...
as for my reading comprehension of what the sir boyaxski's inquiry is, i'll just seconded the replies of sir khenshin applicable yan sa mga pub's na may mga sumasabit sa estribo, afaik di rin cover ng insurance nag mga pasahero na sumasabit. and for roller bladers, skate boarders and the likes, tungkol ito sa mga humahawak sa rear sides ng mga passing vehicle to propel them easily...
ride safely and defensively...
Biker's Prayer
"As We Go Out On Our Ride,
We Pray The LORD Rides By Our Sides.
Keep Us Safe And In Your Sight,
And Let It Rain Some Other Night."