Quote:
Originally Posted by stugray
Try this.
If a cyclist were to do the following two experiments, what would the results be:
Test A - Remove 10 grams from the perimeter of the tire and compare that to removing 10 grams from the seat.
Test B - Remove 10 grams from the wheel HUB and compare that to removing 10 grams from the seat.
What do you think?
The analogy applies this way for our cars:
Remove weight from the perimeter of the flywheel vs same weight removed from the spare tire: Noticeable difference! (removing from flywheel made a significant difference to rotational inertia)
Remove weight from the driveshaft (or the engine pulley) vs same weight removed from the spare tire: NO Noticeable difference!
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Buddy, we are not talking here about 10gr, we are talking about half the weight of the stock.
Imagine this: a static bicycle with rear wheel that weighs 50 lbs and another one with 25 lbs. In 5 second from the standpoint, please tell me which one will reach a higher rpm applying the SAME amount of accelerating force to the pedals! The lighter wheel one will do it every time with no failure! Off the mark, the heavier one will need more force applied to reach the same high RPM as the lighter one. Pure physics! Try lifting a 40 or 80 pounds in 1 second and tell me which one you struggle more with?
Also, explain this: in the wet with the light weight driveshaft I can easily spin the tires, with stock ones, not so much! Same conditions, same tires/wheel combo, same rpm!
The benefits of a lighter driveshaft have been over discussed for quite some time now and YES, they do make a difference! No placebo, no make believe! Considerable difference as a matter a fact! Now, if you expect "turbo" difference then no, but couple this with some light weight wheels and you will have a smile on your face!
Nevertheless, this sounds like a really good deal! Plus it looks like it's got the sound deadening thing which will further reduce the resonance!
