But does the sub 20 lb bike really gain you a lot?  For reference, I weight 220 lbs -- so the difference between and 18 lb and a 30 lb bike really doesn&#x27;t seem like a lot.  I guess what I&#x27;m asking, does losing 5 lbs on a bike equal losing 5 lbs on the rider?  Logically this would seem the case.<p>But there is probably one other factor to consider -- the lighter bike is more expensive, therefore probably has better components (chain&#x2F;shifters&#x2F;bearings&#x2F;tires&#x2F;gears), which makes it feel smoother.  And if it feels better, you will get the perception of higher speed or less effort.