Renegade wrote:Stiffness is definately something us mere mortals can pick on a bike.
Aluminium - Not so. Stiffness transmits all road shock directly to body. That's why manufacturers are going for carbon forks nowdays.
Not one too disagree too often, but have to say, that what most mere mortals notice is weight not stiffness! I am an ex pro, and unless you are pulling with Robbie Mac's power then as a MM, you'll not notice the reduced flex.
Vibration is a by product of stiffness, and it's argument is often flawed. How can something so rigid, not vibrate, if there is no dampening! Many manufacturies these days are putting carbon forks and seat posts and rear stays on alu bikes, why, because the dampening effect of carbon, with it's lightness is the ultimate feature. People dont buy alu frames cos theyre cheaper, like Titanium, the fad disappears, there is more chance that a harder lighter form of alu will be found. The process of carbon and titanium frame making is expensive and the long term studies are not conclusive. There is still some doubt whether carbon stresses and cracks early and as the pro's change bikes so often, it is up to us MM to find out the hard way.
If you wanna save money and get a lighter bike..................Try Jenny Craig, lose body weight, it's cheaper and more effective. All that has happened in 10 years of bikes, is 4kgs of weight loss. Jenny will promise you that for $400 a year!