"bfd" <[email hidden]> wrote in message news:<[email hidden]>...
Quoted message said:Per Elms ter said:Alex Rodriguez said:In article <[email hidden]>,
[email hidden] says...
> OK, here is the story. I am fairly new to road biking but have
> fallen in love with the sport after making the transition from
mtb.
Quoted message said:Quoted message said:> I currently own an dura ace/ultrega mix Cannondale 2.8 and am
> looking to upgrade the frame to somethng a bit more compliant.
A frame upgrade is not going to make the ride more compliant. Try
fatter tires are a lower pressure.
I absolutely disagree on that. I did a test ride on a Trek 2300 ( Alu
) and
Quoted message said:a Trek 5200 ( Carbon). Both have the identical geometry according to
Trek
Quoted message said:and they were the same size frames. The difference in feel, comfort
and
Quoted message said:handling was significant.
Question, were the tires, and more importantly, tire pressures the
same?
I have three steel roadbikes, and they have three different feels. I
have
run relatively few (3 or 4) different tires, always 23 or 25, always
at 115
or 120 except for the occaisional day at 110. I think that the
difference
in the way that the bikes themselves feel is more significant than the
differences in feel due to the tires, as long as they are 23 or 25
and
115-120psi.
I think there's a lot of oversimplification going on here. In the
world of
dirtbike suspensions, they talk of low- and high-speed damping. Low
speed
hits are jump landings. High speed hits are logs, ledges, rocks, etc.
I
suspect that tire and PSI choice might affect the ride after
high-speed hits
like cracks in pavement much more than than they affect the ride after
low
speed forces like cornering.
I have read the argument here that all frames are very stiff
vertically,
and there is essentially no vertical flex to be gained by choice of
frame material, and I accept it. The difference, I suspect, is
largely in the fork.
I also suspect that whatever people mean by "compliant" is more
affected by
what a material does after it takes a hit, rather than any difference
in
vertical stiffness.
dkl