HDTenEightyP/NetNews huggingface dataset:
From: jk@cs.man.ac.uk (John Kewley)
Newsgroups: rec.bicycles
Subject: Shift levers
Date: 14 Aug 92 10:30:46 GMT
Reply-To: jk@cs.man.ac.uk (John Kewley)
Organization: ICL Computers Limited, EDS Project

Has anyone done a comparison of the various shift lever systems recently?

How do the following compare?

Campag Ergo

Suntour Command

Shimano Dura-Ace

Shimano Ultegra

Bar-end shifters

The first two look lighter and neater than the "windscreen wiper" shimano
offerings, is there a difference in performance?

Anyone in UK know how much suntour command shifters cost? Do they work with
shimano mechs.
--
        John M Kewley
 
ICL Computers Limited, Wenlock Way, West Gorton, Manchester. M12 5DR
Tel: (+44) 61 223 1301 X2138  Email: jk@fiveg.icl.co.uk or jk@cs.man.ac.uk
Newsgroups: rec.bicycles
From: rlewis@muskwa.ucs.ualberta.ca (Robert Lewis)
Subject: Re: using presta tubes with a Schraeder wheel
Keywords: presta to schraeder
Organization: University Of Alberta, Edmonton Canada
Date: Tue, 18 Aug 1992 15:31:01 GMT

gcarter!gcarter (George Carter) writes:

>The other solution to this problem is to convert both bikes to
>Schraeder valves.  Here are the advantages of doing this in the
>United States:

[deleted section]

>2. While Presta works fine at home with a floor pump, on the road
>   Schraeder valves are more convenient both to fill at a gas station
>   or to fill with a on-the-bike pump.

Quite the contrary on the second point, the problem with Schraeder 
valves is that they are harder to use, taking an extra 30 lb/sq. inch to
inflate over presta valves.  As for using gas stations to fill tires,
perhaps some have had good luck but I find it too easy to blow tires off
the rim using such, I'm not sure how much air such pumps put in a tire
in each 'pump stroke' but it seems enough to go from 90 lbs/sq inch to
blow off.

>3. Presta valves are far more fragile.  Under duress (tired at the 
>   end of a long ride, raining etc.) the potential of breaking the
>   stem on the road when filling could be very inconvenient if you
>   were down to your last tube.

This can be a problem but one one learns to avoid.  I've also suffered
failure of Schraeder valves, in the rubber part of the valve.

>4. Schraeder replacement tubes are available on the road in any town
>   large enough to have a drug or grocery store.  Presta generally are
>   less available, though any bike shop would have them.

This is true, probably more important is that if your pump fails on the
road you may not be able to find a presta valve pump.  If you are
touring it is a good idea to have a Schraeder valve adaptor along.  If
you are touring you should have at least a couple of spares and a patch
kit along (which I carry even when training).  If you were going on an
extended tour in areas poorly served by bike shops (e.g., South America,
Africa though I don't know what the common valve types are there) I 
would consider using Presta tubes (easier to fill fewer slow valve
leaks) and Schraeder valve rims just in case you were really stuck 
(I've filled tires to 130 lbs./sq inch with Presta tubes in Schraeder 
rims).

>5. Presta protective caps are lost due to vibration far more easily.

But protective caps aren't needed by either valve (though I've never
lost either sort of valve other than by leaving it somewhere).

>6. Schraeder valve leak detection requires only saliva, which is 
>   far more convenient on the road than the cup of water Presta 
>   valves require.

Do Presta valves ever leak (as opposed to outright breaking)?  I've
never experienced leaking Presta valves, though I have had leaking
Schraeder valves.


Robert M. Lewis
Department of Sociology
University of Alberta
Edmonton, Alberta
Canada
From: kim39@scws8.harvard.edu (John Kim)
Newsgroups: rec.bicycles
Subject: Re: Gas subsidies and taxes
Date: 19 Aug 92 05:05:54 GMT
Article-I.D.: husc3.1992Aug19.010555.14878
Organization: Harvard University Science Center

-zTC@engin.umich.edu> blagdon@engin.umich.edu (Kenneth James Clark ) writes:
>Reagan reduced taxes on the wealthy from 70% of income to 28% of income
>in his first term, recently the Congress repealed the consumption taxes
>on luxury boats, cars, and other toys for the wealthy.  The recent
>energy act provides subsidies for U.S. oil producers, dropping the 

	When criticizing or lauding a politician, please be sure
to specify how you are counting the taxes.  When you say "70%"
I can only assume you mean the highest statutory marginal tax rate,
which once was 90% and now is either 28% or 33%, depending on how
one views the "bubble" in the tax code.  You neglect to mention
that while under teh Reagan presidency the highest marginal
rate dropped, the effective marginal rate dropped by less due
to a closign of loopholes.  Also, while I believe the actual 
percentage of income paid by the rich in taxes probably did 
drop, it wasn't by as much as yoru 70%-20% figures imply.
-Case
Newsgroups: rec.bicycles
From: loucks@isrc.sandia.gov (Cliff Loucks)
Subject: Re: Drillium
Organization: Sandia National Labs, Org. 1600, Albq., NM
Date: Tue, 18 Aug 1992 18:25:51 GMT

(Art LaValle):
> David Keppel:
>> dick@ncs.com:
>> >Don't drill out your water bottles.
>> 
>> Why not?  This is one of those rare circumstances where you can save
>> more than the weight of the part you are drilling!
> 
> Believe it or not, I knew someone who used to do this to his water
> bottles. 

Actually, I've always wanted a bottle that was drilled with thousands of
tiny holes so it would be pourous.  Being in the desert southwest,
where the air is quite dry, a bottle that "sweats" would keep the
contents cooler through evaporation.

But I couln't find a small enough drill :-).

Cliff
-- 

Cliff Loucks  <=>  loucks@isrc.sandia.gov
Sandia National Labs, Albuquerque, New Mexico
Newsgroups: rec.bicycles
From: LJI3248@LMSC5.IS.LMSC.LOCKHEED.COM (JEFF)
Subject: Re: Camelback H2O holders
Organization: O/19-61
Date: Wed, 19 Aug 92 19:13:37 GMT

In article <713863007.F00001@urchin.fidonet.org>, Howard.Gerber@f88.n106.z1.fidonet.org (Howard Gerber) writes:
> 
>  On 08-12-92 Catherine Anne Foulston wrote to All... 
>  
>  CA> I got that impression from the ad too.  Has anyone seen one in color 
>  CA> yet? 
>  
>  I have a first series Camelback in blue and a fairly recent on in black. 
>  
>  
>  
>  
> ... OFFLINE 1.36 * Comes the Revolution, we'll all eat peaches and cream 
> 
>  * Origin: Two Wheelers - The Bicylists' Communications Link (1:106/88)
> 
> 

Unless you like HOT water in your mouth and on your back I wouldn't be so quick
to purchase one in BLACK!
From: BRANDT_JOBST/HP1900_01@HPLOMG.HPL.HP.COM
Newsgroups: rec.bicycles
Subject: Re: Trispokes
Date: 19 Aug 92 00:29:17 GMT

Kritt writes:

> I must admit, the only thing I know about them is they look great 8)...

It's good to see that looking good is preferred at almost any price.
What, I wonder, do you expect these wheels to do for your bicycling?
They are heavier, have poorer braking for lack of cooling, make
strange noises when going fast (whup whup whup...) and they are side
wind sensitive.  To make up for it they cost more than twice what
good durable wheels cost complete and ready to ride.  Then you get to
put a freewheel and skewers on them.

What means "they look great"?  I suppose there is no accounting for
bad taste.

jobst_brandt@hplabs.hp.com
From: holz@ellis.uchicago.edu (james anthony holzwarth)
Newsgroups: rec.bicycles
Subject: Re: all theat fat
Date: 13 Aug 92 16:10:26 GMT
Article-I.D.: midway.1992Aug13.161026.20503
Reply-To: holz@midway.uchicago.edu
Organization: University of Chicago Computing Organizations


 I have read the low cholestrerol posts here and that is nice. But I think
 It is better to know that low cholesterol does not mean free from 
 cholesterol diseses. The important factor is the ratio of LDLs to HDLs
 (LDL is the so called "bad cholesterol" and HDL is the "good cholesterol").
 The problem with cholesterol, when it is a problem, is that it decreases
 vessel flexibility, ie the aorta. This means bad things for the heart.
 Another problem is that what you eat does not necessarily affect your 
 cholesterol (that is the amount of cholesterol you eat) because of the
 1000milligrams of cholesterol that you need, normal diet supplies 150
 milligrams and the body produces 850milligrams. There is a ballance
 where the body determines the total cholesterol through the LDL-receptor
 (this guy pulls the LDLs into the liver, and gives the liver an idea of
 the amount of cholesterol it needs to produce) and if there is too (or 
 enough) the body does not produce any, but if there is not enough production
 begins. Fat is indeed bad for many reasons, but fat is not directly related
 to the cholesterol problem, its much harder to understand. But suffice it to
 say, you should not have a diet consisting of more than (as someone else
 posted) 30% fat. The exercise connection, to cholesterol, has also been a
 puzzling thing. There has not been a good correlation between exercise and
 low LDL levels (too much LDL=not a good thing). But there definitely has been
 been a good correlation between exercise and lack of hardened arteries.
 This has left researchers scratching there heads. But now they suggest
 that the exercise helps bloods vessels not get hardened by cholesterol.
 The theory is that high LDLs don't get you unless there are weaknesses in the
 vessels. Ie the LDLs dump the cholesterol into the vessel walls if the
 vessel walls have small imperfections in them. And exercise helps keeps
 those vessels healthy and free of imperfections. Actually, this last bit 
 has not yet been proven, but there is some evidence to support it. And it
 has the nice benefit of giving a reason why active people are better off.
> 
 Sorry I'll get offf my high horse now.

 Jim H
Newsgroups: rec.bicycles
From: dogar@rtsg.mot.com (Haroon H. Dogar)
Subject: Re: Heart Rate Monitors: What do you really use?
Organization: Motorola Inc., Cellular Infrastructure Group
Date: Thu, 13 Aug 1992 18:38:13 GMT

sham@cs.arizona.edu (Shamim Zvonko Mohamed) writes:

>I've decided that it's time to use the Scientific Method in my riding. To help
>me time trial better, I've decided to plunge into HRM land. To those of you
>that use HRMs: What features do you really need? I'm not interested in 45
>segments of target zone start-stop timers and continuous phase of the moon
>readouts direct to PCs with satellite links, just what I need to do good
>intervals.  Do you use the target zone features, like high and low alarms?  The
>guys on my team suggest the basic model with just heart-rate, no alarms, timers
>or memories. Any dissenting opinions? Any recommendations? Any models I should
>absolutely stay away from?

>Thanks!

>-s

I picked up a wrist-watch type pulse monitor from Service Merchandise
[Elesis?] for about 40 bucks. It has the basic feature of pulse monitor,
low and high alarms, and time in target zone. However, I don't like it
as it appears to be way off. It has a finger sensor and I wear it on
my little finger so that it doesn't interfere with my grip, but the
readings that I get don't seem to match my level of activity at all.
I don't know if it's because my gloves are too tight or the cadence of
my pedalling throws it off or what, but I haven't been very happy so far.
Has anyone else had better luck with this model of pulse rate monitor?
Do the "real" [$250 and up] pulse monitors perform any better?

-hd
"When you respect the intelligence of black people in this country as
 being equal to that of whites, then you'll realize that the reaction
 of the black man to oppression will be the same as the reaction of the
 white man to oppression."
                                    Malcolm X [Shabaaz]
Newsgroups: rec.bicycles
From: ozcomert@wam.umd.edu (John Sedat Ozcomert)
Subject: Campy brake hoods
Organization: University of Maryland, College Park
Date: Sat, 15 Aug 1992 20:29:31 GMT


Please let me know if anyone has experienced this problem and/or has a 
solution:

Several years ago I purchased Campy Athena brakes and I have been very happy
with them except for one thing: the brake hoods slowly ripped on the underside
and are now held on with tape.  For most other brands this would not present
a problem; simply replace the hoods.  But Campy hoods are about $30 EACH!!
Considering I paid $76 for the whole set, I cannot bring myself to shell
out this kind of dough, so I am living with the tape solution.  Has anyone
heard of a manufacturer (other than Campy) that makes replacement hoods that
fit?
Any other suggestions would also be appreciated.

-John Ozcomert
Newsgroups: rec.bicycles
From: naru@eng.umd.edu (Naruhisa Takashima)
Subject: Re: Trispokes
Date: Wed, 19 Aug 92 13:44:46 GMT
Organization: College of Engineering, University of Maryland, College Park
Originator: naru@hurricane.eng.umd.edu


In article <1992Aug19.121859.20635@einoed.in-berlin.de>, kritt@einoed.in-berlin.de (Kritt G.) writes:
>BRANDT_JOBST/HP1900_01@HPLOMG.HPL.HP.COM writes:
>
>>Kritt writes:
>>> I must admit, the only thing I know about them is they look great 8)...
>
>>It's good to see that looking good is preferred at almost any price.
>
>Pffft, why do you try to push me in that corner? If I was only concerned
>about the look I wouldn't ask about adavantages and disadvantages. I didn't
>even know about the price, I just saw a set at my local bike shop. I was
>just curious about something that caught my eye. 
>
>>What, I wonder, do you expect these wheels to do for your bicycling?
>>They are heavier, have poorer braking for lack of cooling, make
>>strange noises when going fast (whup whup whup...) and they are side
>>wind sensitive.  To make up for it they cost more than twice what
>>good durable wheels cost complete and ready to ride.  Then you get to
>>put a freewheel and skewers on them.
>
>That's exactly what I wanted to know! If this information is so fucking
>obvious for you, please excuse my ignorance. I didn't know and I won't ask 
>again...
>
>Anyway, thanks for your help..

Kritt,
Since Jobst has given you the demerits of the trispoke wheels, I'll give you
the merits. and to lesser degree counter his arguements.

1) Less wind resistence... If this wasn't true no one would use it. That
   includes time trialist, triatheletes, etc.

2) For a straight road on a falt terrain, the weight of the wheels has 
   no consequence on the speed of the bike. In reality the increased momentum
   will probaly help you once you get up to speed.

3) For time trialing, or non-technical course lack of cooling for brakes 
   is not of major concern

4) As for the noise... well if it looks good who cares :)

Anyway, that's why trispoke wheel exists. Disk wheels are better for 
reducing drag, but they are more suspectible to side winds.

I do agree w/ Jobst that they are awfully expensive.  But hey, some people 
do buy bikes costing in excess of $3,000!!!

Hope this helps,
Naru Takashima
Newsgroups: rec.bicycles
From: tomk@netcom.com (Thomas H. Kunich)
Subject: Re: Young white male in red sports car
Date: Fri, 14 Aug 92 00:09:53 GMT
Organization: Netcom - Online Communication Services (408 241-9760 guest)

In article <1992Aug13.024636.24995@unixg.ubc.ca> slais02@unixg.ubc.ca (Robyn Stewart) writes:
>
>He *slowed down* matching my speed a safe distance behind me, waited
>until the road straightened out a bit enough that I could tell the 
>oncoming lane was clear, and he waved a friendly thank you as I gestured for 
>him to pass.
>
Sure is easy to tell a fellow bicyclist, isn't it?

From: budn@hpmwtd.sr.hp.com (Bud Noren)
Date: Thu, 13 Aug 1992 20:12:57 GMT
Subject: Re: All that fat
Organization: HP Santa Rosa Site (NMD MTA MWTD)
Newsgroups: rec.bicycles

les@SAIL.Stanford.EDU (Les Earnest) slams us back to reality:

>But what does this have to do with cycling?  Not much.

Hey, wait a minute!  Just look at these facts:

  1)  The wine study was done in France

  2)  They have some nifty bike races in France

  3)  Lemond races (sometimes) for a french team

  4)  We have lots of cholesterol and they don't (marketing opportunity?)

  5)  Having lots of cholesterol probably isn't good for bicycling

Need I say more?

-Bud

disclaimer:  It's one of those days.
Newsgroups: rec.bicycles
From: jennings@lhotse.stortek.com (Jeff Jennings)
Subject: Re: Campy pulls a Shimano -- buy another tool
Organization: Storage Tek
X-Newsreader: Tin 1.1 PL5
Date: Fri, 21 Aug 1992 22:10:38 GMT

David Keppel (pardo@cs.washington.edu) wrote:
: Check before you buy:
: 
: A mechanic told me that some current Campagnolo cranksets have one
: dustcap reverse threaded.  To pull the crankarm you need either the
: Campy version of the Sugino/Autex One-Key Release (tm, probably) or
: a special left-hand threaded crank puller.  This is incredibly stupid
: if it's true.  Why pay less?
: 
: 	;-D on  ( Bicycle Monotony(tm pending) )  Pardo

I find this a bit difficult to believe.  The Chorus and Record cranks do
not have a dustcap, and require no special tools to pull the cranks, just
a 7mm hex key.  A friend has a new Athena crank and hasn't said anything
about any special tools or problems, which I am nearly certain I would
have heard about.  So, which crankset are you talking about?

- jeff
--
Jeff Jennings              | What happens if a big asteroid hits Earth?
Jeff_Jennings@stortek.com  | Judging from realistic simulations involving a
Storage Technology         | sledge hammer and a common laboratory frog, we
Iceberg - LSVL 2A          | can assume it will be pretty bad. -- Dave Barry
From: sham@cs.arizona.edu (Shamim Zvonko Mohamed)
Newsgroups: rec.bicycles
Subject: Heart Rate Monitors: What do you really use?
Date: 12 Aug 92 17:50:17 GMT
Organization: U of Arizona CS Dept, Tucson

I've decided that it's time to use the Scientific Method in my riding. To help
me time trial better, I've decided to plunge into HRM land. To those of you
that use HRMs: What features do you really need? I'm not interested in 45
segments of target zone start-stop timers and continuous phase of the moon
readouts direct to PCs with satellite links, just what I need to do good
intervals.  Do you use the target zone features, like high and low alarms?  The
guys on my team suggest the basic model with just heart-rate, no alarms, timers
or memories. Any dissenting opinions? Any recommendations? Any models I should
absolutely stay away from?

Thanks!

-s

PS: Rather than get annoyed at Tom K.'s postings, why not do something about
it? Most people use newsreaders with "kill" facilities. I use rn; and I have
/tomk@netcom.com/h:j
in my KILL file.
--
Henri Desgrange, 1902: "Variable gears are only for people over forty-five.
Isn't it better to triumph by the strength of your muscles rather than by the
artifice of a derailleur? We are getting soft. Come on, fellows. Let's say that
the test was a fine demonstration---for our grandparents! As for me, give me a
fixed gear!"

  Shamim Mohamed / {uunet,noao,cmcl2..}!arizona!shamim / shamim@cs.arizona.edu
 Member of the League for Programming Freedom - write to league@prep.ai.mit.edu
From: sery@crunch.unm.edu (sery)
Newsgroups: rec.bicycles
Subject: Re: Mold Release & Preservative Agents (was Re: Road tires?)
Date: 19 Aug 92 17:52:16 GMT
Organization: /usr/local/lib/rn/organization

Jobst Brandt writes:
>Brian Radloff writes:
>
>> I think Conti Grand Prix clinchers are great.  I've been training and
>> racing on them for the last 2 years.  Of course Conti is proud of these
>> tire and charges accordingly.  I'm fortunate and my team gets them for a
>> discount, but I think in the long run, I'd still ride them even if I had
>> to pay retail.  IMHO, these are the BEST clinchers on the road.
>
>I'm not sure about the timing so I don't know whether you read my earlier
>posting on this subject but I would like to know what comparative evidence
>you have for these findings.  Formerly I heard similar endorsements of a
>Masi, Pogliaghi, Tomassini or Viner to mention a few, with similar missing
>evidence.  I think it is casually expressed in conversation but when it
>appears in print I think there must be a little more forethought involved.
>Is there more evidence to your statements than you write?
>
What more forethough is necessary?  Mr. Radloff said he thinks they are the
best available.  I do too.  This forum is conversational in nature and
both of us are expressing our opinion and have not claimed otherwise.  If you 
want evidence then I can tell you that my personal experience is based on tens 
of thousands of miles and many, many tires (I expect his is too). They ride 
very well (subjective opinion) and they get very few flats (objective 
observation-I keep rough track of my punctures).  

Paul Sery
Albuquerque, NM
Newsgroups: rec.bicycles
From: adh@cbnewsi.cb.att.com (andrew.d.hay)
Subject: Re: Heart Rate Survey: Results
Organization: AT&T
Distribution: na
Date: Thu, 13 Aug 1992 12:50:43 GMT

In article <1992Aug12.152939.13702@rmtc.Central.Sun.COM> jdm@rmtc.Central.Sun.COM (Jim Moore) writes:
[]
"These numbers are very encouraging! Definitely doesn't follow the
"220-(age in years) formula for max rate. Perhaps I don't have to
"assume that my aerobic capacity will decline at about 1 bpm/year!

covert bailey (of 'fit or fat' fame) is a medical researcher who has
specialized in fitness and fat metabolism for something like 30 years.
his conclusion about max rate:  it's not very important.  there's too
much variability between people of the same age and fitness for this
simple formula to be meaningful (a football tackle is supposed to have
the same rate as a women's olympic gymnast?  and people of the same
weight have variations in heart size...).
his rule of thumb for aerobic training is 'as fast as you can go while
talking' -- if you're too out of breath to talk, you're beyond aerobic
metabolism.

-- 
		+--------------------------------------------------------------+
Andrew Hay	"Do not fraternize with that creature, I am trying to train him"
a_d_hay@att.com	"But that's a parrot!"		"I was TALKING to the parrot..."
		+--------------------------------------------------------------+
Newsgroups: rec.bicycles
From: yogi@coombs.anu.edu.au (Michael Hanslip)
Subject: Re: MORE OPINIONS WANTED: Trek 2100/2300 & C'Dale 2.8
Organization: Computer Services Centre, Australian National University
Distribution: usa
Date: 13 Aug 92 11:09:33 GMT

jsweeney@geppetto.encore.com (Joe Sweeney) writes:

>brand@rtsg.mot.com (Robert W. Brand) writes:

>>In article <1992Aug6.025022.2708@cbnewsj.cb.att.com> pcbk1@cbnewsj.cb.att.com (bryan.s.katz) writes:
>>>  Looking for opinions of Trek 2100/2300 and Cannondale R900 2.8.
>>>  Bicycle Guide had good reviews of these last spring.  However, I
>>>  was hoping to hear from real people.

>>I like my 91 Trek 2100.  Frame is comfortable, durable, strong.
>>If anyone tries to say different, they don't ride one.  I ride
>>about 100 mi/wk, am 6'1" 175lbs and pretty hard on it.  

>I'm another Trek 2100 owner (92 for 1 1/2 month) and I find it a 
>wonderful bike for the money.  I also do about 100mi/wk and fit
>a similiar physical description (6', 177lbs).  It's a very light
>bike (spec'ed at 21lbs, actually lighter according to bike shop),
>and very quick (agility).  I would think it would make a fine
>bike for serious riding or racing.

I ride a Trek 2300 (about 6 weeks old), about 175-200 km per week, and love
it. The STI is great, but that is not really Trek's doing is it. The frame
is a good size, the top tube being longer than my previous frame's. I ride
a 60 cm, am 193 cm (about 6'4"?) and 93 kg (~200lbs?), and was amazed
that at 500 km the wheels hadn't moved more than a couple mm from perfectly
true, I've never had that happen before! Nothing creaks or groans, everything
was assembled almost perfectly and: it corners well at speeds over 80 kmh, 
seems good on bumpy roads, is good for pedalling through corners.
The only thing I'd change would maybe be to leave the aluminum tubes in their 
natural state rather than paint them. I love the look of the main tubes in 
the sun.
Michael Hanslip
yogi@coombs.anu.edu.au