Quoted message said:Getting my first custom frame built [steel] and need to choose a
fork. This machine will be built first for comfort then for speed. I
just turned 58 and am 220lbs +/- so weight isn't really a factor. I
am concerned about the safety of carbon forks even though they are
ubiquitous. So I want a great and inspiring ride and value for money.
generally, carbon forks are safer than steel forks in that they're both
stronger in static loading and significantly more fatigue resistant.
add their dynamic benefits, i.e. vibration attenuation, and suddenly you
have three excellent reasons for carbon forks being so popular.
naysayers will deny based in irrational fud, but those are the facts.
other facts to consider:
a while back there was a batch of sub-standard kestrel forks on the
market. in terms of ride, kestrels are possibly the best i've tried,
and if you can get an old one made state-side, it's worth having. but
other more recent ones are just garbage. to test, squeeze the fork
blades together with one hand. if you hear any creaking or cracking
noises of any kind, return or abandon that fork - it'll make
increasingly alarming cracking noises every time you hit a bump, and
will in due course fail. again, do not ride *any* carbon fork that
makes any noise when squeezed. or in use.
all forks are not equal. i had a reynolds ouzo comp, 1" steerer, that
was a complete noodle. it shimmied on my large frames like a lump of
jello, so while carbon may be strong and offer excellent fatigue
resistance, design is real important to give stiffness where it's
needed; in this case lateral stiffness was lacking.
Quoted message said:
I am assuming that the shock absorbing characteristics of carbon
forks are based on equivalent tire sizes.
no.
Quoted message said:Since carbon forks are not designed to accommodate tires 28mm or
larger
not true. carbon cross and carbon tandem forks accommodate larger tires.
Quoted message said:[the kind I prefer] would a steel fork with a 28 or 32mm tire be just
as comfortable and shock absorbing [not to mention cheaper] than a
carbon fork with a 25mm tire?
why don't you try for yourself? i've tried 6 different carbon forks,
and imo, they all give a more comfortable ride than steel, regardless of
different tires used.
Quoted message said:
For long distance riding how will a 28/32mm tire on a steel fork
compare with a 25mm [28?] tire on a carbon fork regarding handling
efficiency and comfort?
dude, you're confusing the issue. these are two entirely separate
things. assess the fork in isolation and the tires in isolation.
there's no synergism.
Quoted message said:Is the rotating weight of the larger tire a factor? Just read
something about the larger tires having less?! rolling resistance
than the smaller ones. What about aerodynamics. How much of this
matters at 15mph +/-
imo, there's very little fact presented on this forum regarding tires.
at least, not compared to the vast amount of opinion.
tire manufacturers, while admittedly tight lipped on details, do allude
to obvious things like the effects of different treads in different road
situations, yet the only data shared on this forum for example, is for
testing tires with a smooth steel roller. clearly, while this is a
great tool for comparative measure, it's not representative of real road
conditions, unless, unlike me, you happen to have polished steel roads
in your neighborhood.
again, unless you can obtain useful data on the tires you're considering
for the terrain you'll be riding, you're stuck with doing your own
testing and forming your own opinions of what suits you.
Quoted message said:Thanks for your answers and sharing your experience knowledge and
common sense .
as said by others, trust your frame builder.