working of a double over head cam

http://www.youtube.com/watch?v=Hhc6xM0wjKQ

Over Head Camshaft, OHC, douuble OHC

en.wikipedia.org/wiki/Overhead_camshaft

ic engine design

ic engine design, internal combustion engine

innovative bikE

AN BIKE WITH OVER-DRIVE

Just think when u can drive your 100cc bike at a top a speed of 150kmph with a mileage.

This can happen when ur bike is fitted with an epcyclic gear box with a conventional chain drive.