I/61IbQgs3tTL._SY355_.jpg' alt='Echo Bicycle Computer Manual' title='Echo Bicycle Computer Manual' />This question is part of the Ask Lifehacker advice column, where Lifehacker staff answers readers burning questions with practical tips. After all, some of the. Byron Shire Echo Issue 2. Iolo System Mechanic 11. Echo Publications. MTIwMFgxNjAw/z/YXwAAOSwNglZ1YPC/$_75.JPG' alt='Echo Bicycle Computer Manual' title='Echo Bicycle Computer Manual' />Byron Shire Echo Issue 2. Published on Feb 4, 2. Free, independent weekly newspaper from the Byron Shire in northern NSW, Australia. Stress-EchoBed-800x600.jpg?itok=JzL8eXuY' alt='Echo Bicycle Computer Manual' title='Echo Bicycle Computer Manual' />The energy efficiency in transport, is the useful travelled distance, of passengers, goods or any type of load divided by the total energy put into the transport.