I have been told that it is not just engine capacity that influences the overall "power" of a bike, but that power to weight ratio plays more of a role (ergo, LAMS list). So, how does engine capacity, power, weight and torque impact speed, acceleration and braking or any other aspects of overall performance? How would the performance of a light bike with a small engine compare to a heavy bike with a large engine? How does one go about deciding what combination is better for them? Does it just come down to personal preference as to what individual riders prefer, or are certain power to weight combinations better for certain types of activities? I can see the obvious benefit of high power, low weight and high torque in a racing setting. But what role does power and weight play in day to day riding? - Question from a newbie who does not own a bike!