T.R | Title | User | Personal Name | Date | Lines |
---|
2124.1 | Mavic O4CD and Dura-Ace | TEMPE::HUFFAKER | | Mon Nov 11 1991 13:10 | 7 |
| Mavic O4CD are great rims and strong and somewhat aero. The ceramic
coated ones seem a real overkill (and a lot of $$) for something I
believe is a minor (brake marks on rim) rather than a major problem.
Since I am a Dura-Ace kind of guy I cant think of any other hubs
that I would use.
Mike
|
2124.2 | AC'S GOOD... | WMOIS::GIROUARD_C | | Mon Nov 11 1991 15:51 | 11 |
| I run an American Classic hub on my TT machine. It is unbelievably
smooth and friction-free. They have a rep for a short life, but I
know a guy who's been running them for training and racing and they're
doing fine (cartidges anyway so they just require replacement).
Rims are another story. I'm sure if you want lightweight stuff you'll
go with throw-ups... Ooops, I mean sew-ups..
Good Luck...
Chip
|
2124.3 | I like Campy rims | AD::CRANE | I'd rather be on my bicycle! | Mon Nov 11 1991 16:16 | 22 |
|
I seem to be rather tough on wheels. Particularly rear ones.
I've had MA-40s last about 5000 miles (developed flat spot then started
breaking spokes)
I've had Wheelsmith Saturae(36sp) rims last about 4000 miles.
(Killed in crash)
Then there were this years O4CD(32sp) rear wheel that went beyond repair
after about 2000 miles of never being very reliable.
(I think this was a bad building job)
I don't think that any of thise rims was particularly good but I am
very impressed with the 32sp Campy Record Stada rims that I am riding
on now. I've had them for 3 years and until know used them exclusively
for racing but recently started training on them as well. These are
very fast very light(350 grams) tubular rims.
John C.
|
2124.4 | thanks | SHALOT::ELLIS | John Lee Ellis - assembly required | Wed Nov 13 1991 07:49 | 10 |
|
I will look into the Campy Strada rims, and the other suggestions
(for which, thanks). BTW, I do have a nice pair of tubular wheels
now -- this morning I looked at the rims: they are Mavic and say
Monthlery Legere on them. (The hubs are 28 hole high-flange Record.)
At some point I'm tempted to get the Mavic ceramic rims, but not
for performance, just braking.
-john
|
2124.5 | spokes | USMRM4::MREID | | Wed Nov 13 1991 17:43 | 10 |
| Spokes: Wheelsmith Oval spokes are lightweight, very aero (sharp edge),
& no slotting necessary. I've have them on my clincher
training wheels (Mavic Open 4-CD rims, D/A hubs); trained 2 years
(9000 mi), hard riding on rough New England roads with no
wheelsmith oval spoke breakage front or rear. Check 'em out ...
light, durable, aero .... best around. I also have a very good
wheelbuilder & that helps...
Regards,
Mark
|
2124.6 | How many spokes do you really need? | JURA::MACFADYEN | under new management | Tue Dec 06 1994 06:17 | 41 |
| <<< MOVIES::DISK$SYSDATA:[NOTES$LIBRARY]EURO_RANDONNEUR.NOTE;2 >>>
-< Alpine cycling >-
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Note 88.9 New-fangled toys & maintenance 9 of 10
JURA::LETCHER "If not for good; if not for better" 10 lines 6-DEC-1994 10:15
-< Spokey or what? >-
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Having chatted with Rod over the last few days about various aspects of
bike building, and in particular wheel building, my question to the
panel is, given how much better materials are these days than they were
in around 1920 when they were also using 32 and 36 spoked wheels, why do
wheels still have so many spokes in them? Is it just a legacy from the
days of wooden rims and hobby horse bikes, or is it really essential,
even today?
Piers
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Note 88.10 New-fangled toys & maintenance 10 of 10
JURA::MACFADYEN "under new management" 19 lines 6-DEC-1994 10:29
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Could be worth asking this in Bicycle notes since so few people seem to
read this file at the moment.
FWIW, I think that the use of 32/36 spokes nowadays is largely down to
tradition. I don't believe that it is strictly an engineering decision.
The problem for me is that I don't know where the real limits are. I
note that the type of aero wheel with a deep rim which has become
prevalent in the past year or two, such as Campag Shamal and its
variants, have from 12 to 20 spokes. They do strike me as wheels that
have been designed by engineers, so there's a clue. On the other hand,
those deep rims must be very strong so it would be unwise to assume
that a more conventional rim could also get away with so few spokes.
At the moment I'd risk building a 28-spoke wheel for general riding. In
any case, that's the lowest spoke number you can get for conventional
rims.
Rod
|
2124.7 | | WRKSYS::ROTH | Geometry is the real life! | Tue Dec 06 1994 11:31 | 15 |
| It's a good question.
I believe Jobst Brandt discusses this issue in his treatise on
the bicycle wheel, my copy is not at hand at the moment.
At any rate, I can ask the question in the bicycling internet
news group (it may even be in the FAQ.)
I don't think it is strictly tradition since there are issues with
the crossing pattern of the spokeks and the diameter of the hub
flange and so on. But there are wheels for tandems and such with
more than the traditional 32 or 36 spokes (I think 40 is a possible
number.)
- Jim
|