Abstract:
B.B. Axle is an important component of
bicvcle. The left & right cranks are mounted
on ~the axle for propulsion. There have been
many developments in the B.B. Axle and
Cranks. The latest being the .one piece
crank comprising of B.B. Axle and left
and right cranks of one piece forging. The
other is the thompson pattern B.B. Axle.
Of course, these varieties are not in use in
our country. The B.S.A. type B.B. Axle is being
used in our country and other developing
countries. (Reserved list Sr. No. 685).
