pinnah said:Are there discernable differences between expensive components like
Campy or DuraAce and less expensive stuff like Shimano Sora?
Weight is the most major difference. Expensive components are not always
more durable, especially where more delicate designs or materials are used
to save weight. Steel is strong and hard-wearing as well as being cheap.
However, some of the best of the best is both lightweight and highly
durable thanks to clever design and expensive technology.
Quoted message said:If so, what are they and how good of a rider do you need to be to able
to tell the difference?
You don't have to be a good rider to appreciate and enjoy a light bike or
to find any extra gears or twiddly bits useful. The weight difference is
noticeable when climbing and accelerating, and the handling will just feel
that bit nicer in general.
However, your own weight is a big big factor, of course (re bike : person
ratio), and just having lightweight gears & brakes is not enough to make
your bike lightweight anyway..........
Quoted message said:NOTE: This is a follow-up to a recent inquiry I made about upgrading
components for increased speed that I (a recreational cyclist) might
be able to notice. There were several helpful suggestions (which I
appreciate) but the overall concensus is that component quality is not
linked to speed. The possible exceptions was that lighter weight
stuff might be noticable on longer climbs.
So, this begs an obvious question. Is there *any* advantage to more
expensive components other than weight? If so, what are they and
can a recreational rider actually feel them?
To get the juices going, here is a starting point...
+ Wheels, spokes and rims?
- Weight, durability, braking smoothness, braking power?
Variables: weight, strength and fatigue resistance. Machined rims provide
better braking at first. More expensive rims are not necessarily
stronger, but often are. Aero rims cost more, too.
Quoted message said:+ Hubs?
- Speed/efficiency, durability, lower maintenance?
Forget speed when it comes to hubs as any drag will be minute compared to
other factors that /really/ affect your speed, like aerodynamics of riding
position and rolling resistance of tyres.
Durability: debatable.
Some cheaper hubs with cartridge bearings are maintenance free (eg.
Campag Mirage). On the other hand, some high end hubs (like Campag
Chorus) are easier to service than traditional Shimano hubs. And some
hubs (of various prices) have more weather-proof seals than others. Top
end hubs have grease ports.
Yet again, weight is the major difference.
Quoted message said:+ Bottom brackets?
- Speed/efficiency, durability, lower maintenance?
Similar to hubs above, although most BBs are now maintenace-free.
Durabilty can be dodgy with some cheap ones.
Quoted message said:+ Brake calipers?
- Braking power, braking feel, adjustability, durability?
More money buys nicer and more adjustable brake pads, and nicer cable
adjusters. But low-end dual-pivot calipers (from the major brands) have
the same sort of stiffness and mechanical advantage as the more expenive
ones.
Tip: buy Mirage/Sora/105 calipers and upgrade by fitting Kool Stop
Dura shoes.
Quoted message said:+ Brake levers/brifters?
- Braking power,
No.
Quoted message said:braking feel, repairability, durability,
Shifting feel, more gears. ShimaNO STIs generally are not repairable; All
Campag Ergos are.
Quoted message said:adjustability?
No, in fact, Sora is one of the few drop-bar levers with adjustable reach.
Quoted message said:+ Crank sets?
- Shifting performance, weight, durability, stiffness (power)?
More expensive rings (forged & machined) last longer than cheap ones which
are pressed. Weight yes. Stiffer sometimes (eg. Chorus verses Centaur).
Quoted message said:+ Front [& rear] derailleurs?
- Shifting performance, weight, durabiltiy, adjustability?
Performance, durabilty & adjustability is not a problem for modern low-end
Campag & Shimano mechs, IME.
Quoted message said:+ Bars, stems and posts?
- Weight, stiffness, shock absorbtion/comfort, adjustability,
suspension?
With traditional type drop bars for instance, the more expensive ones tend
to use thinner tubing so are lighter and more flexible. Not always the
case, though, due to oversizing or special butting/materials or whatever.
How about tyres: Faster tyres will make more difference to performance
than a more expensive groupset. Concentrate on the basics and the things
that affect ergonomics and comfort -- like bars, riding position, saddle,
tyres -- then after that, simply spend the most you can comfortably afford
on the groupset and don't worry about it. Gear ratios are very important
too, but most low-end ones can be tweaked as well (ie. rings & cassettes
can be replaced).
One factor you don't mention is appearance. Definitely /some/ of the
extra money you spend on more expensive stuff is purely for a shinier
finish or a fancier shape, and for a badge with more cred.
~PB