The spokes distribute the load throughout the rim.
Here's how :
Make a small ring of a thin steel wire. Hold it between your
finger and thumb, and press. It will bend.
Now, tie a straight piece of steel wire diagonally, and
press the ring at the ends of the straight wire. You will
need much more force.
But, the same ring will bend with lower force, if you press
it at points where straight wire is not there.
Now, tie many such straight wires on the ring, and then
press the ring.
'hope you got the picture clear :)
it is misconception
that spokes are in
Spokes being thin are
god in tension than
If you observe the
spokes they are fixed
at hub bt slightly free
Whn load appld the
lower spokes expnd
in whel whch brings
all spokes in upper
tension, who actualy
LOAD IS EQUALLY DISTRIBUTED ON PHERIPHERY OF RIM . SO IT UNABLE TO BEND TO RIM . AS WE KNOW THAT A HOLLOW SHAFT IS ABOUT 2.3 TIMES STRONGER THAN SOLID SHAFT. FOR REFRENCE YOU CAN SEE R.S.KHURMI'S BOOK STRENGTH OF MATERIAL UNDER COMPERISION OF SOLID SHAFT AND HOLLOW SHAFT.FOR FURTHER INQUQRY PLEASE TAKE REFRENCE.