HDTenEightyP/NetNews huggingface dataset:
From: pauls@mudskipper.css.itd.umich.edu (Paul Southworth)
Newsgroups: rec.bicycles
Subject: Re: Bottom Bracket woes
Date: 12 Aug 92 13:44:48 GMT
Organization: University of Michigan

In article <1992Aug12.121224.23524@cs.hw.ac.uk> sfleming@cs.hw.ac.uk  
(Stewart Fleming) writes:
..
> The problem is this :  I wanted to get a new sealed BB fitted, so I took
> my old bike to the shop for fitting.  When I collected it this morning,
> I was told that the adjustable cup had seized in the threads and
> could not be removed.  Now, this might be OK, if the "mechanic" in the
> shop had not taken a hammer to the adjustable cup and deformed the
> slots where the remover tool fits.  No normal approach is ever going
> to shift that cup now.

Well the shop where the work was done has, in my opinion, partial  
responsibility for the situation, since they should not have attempted  
irreversable repair techniques unless they had a real solution to back it  
up.  I think you might be able to persuasively argue that they should at  
least assist you in getting a real fix, perhaps split the cost?  I would  
approach them diplomatically.

> If I can't get the BB removed,then I need a new frame.  One of the  
extreme
> methods discussed in this newsgroup a while back might help get the cups
> removed.  Alternatively, I need some advice as to the liability of the
> shop in not carrying out the repair competently.

Well the most extreme solution I can think of is to machine out the cup  
with a power milling tool.  This is something that my shop routinely does  
with totally frozen and broken seatposts.  Admittedly the BB cup is  
(probably) steel, which makes it tougher, but this can definitely be a  
solution.  Probably what would happen is that you would lose the threads  
(I sure hope for your sake that they are English) and then the shell would  
be reamed to size and threaded for 36mm Italian cups.  You would then be  
in a position to buy Italian threaded cups, and use them with a 68mm  
shell-width English BB spindle.  This is something that gets done with BBs  
where the shell is deformed so that cups are too loose and loctite fails  
to solve the looseness problem.

Most shops will not have the power tools to pull off this operation, and  
you would quite possibly have to go to a machinist.  You would want to be  
very clear about what the finished inside diameter of the shell would have  
to be, or you would really be up a creek (that is, if they made it bigger  
than Italian).  Then you would take the bike to a shop where they have the  
Italian cutting tools to rethread the shell.  You might also possibly find  
a frame builder with the proper tools, and they would at least know what  
the requirements for the work would be.  It might also be done on an  
industrial drill-press, but you would be taking more chances with the  
precision of the milling job.
Newsgroups: rec.bicycles
From: somerville@BAE2.NCSU.EDU (SOMERVILLE)
Subject: Re: All that fat(long)
Reply-To: somerville@BAE2.NCSU.EDU (SOMERVILLE)
Organization: North Carolina State University
Date: Sun, 16 Aug 1992 22:25:28 GMT

In article <1992Aug14.111418.270@mis.mcw.edu>, jmoulder@mis.mcw.edu writes:
>The epidemiological, clinical and laboratory evidence linking dietary fat
>intake and disease is quite clear, and so should be the message for bicyclists:
>
>KEEP YOUR FAT INTAKE BELOW 30% OF CALORIES
>  

The key word here is "below."
The guidlines of the American Heart Association and other public
health agencies are influenced by many factors (and industries).
They have changed their position slowly over the last decade or so.
It is permissible to not wait and do better -- say 10% fat and 70-80%
carbohydrate.  They do not object to this, they just can't come out
and recommend it to the public (nor does the public want them to!).

>*Second, a wide variety of studies show an association between dietary fat
>intake, serum lipid profiles, and the development of cardiovascular diseases.
>Thus, many scientific societies (e.g., American Heart Association, NIH)
>recommend a maximal intake of 30% of total energy by fats.  Serum lipid
>profiles are influenced by heredity, diet and exercise.  It is clear that a low
>activity life-style will compound the cardiovascular risk associated with a
>high fat diet.  I cannot, however, find any studies that show that a
>high-activity life-style will *counteract* the cardiovascular risk associated
>with a high fat diet.  

Indeed, studies have strongly suggested that exercise may not prevent heart
disease, and heart disease may not prevent exercise either.  For many victims,
even active people, the *first* symptom of heart disease is sudden death.
It is at the autopsy that the severity of narrowing of their major
coronary arteries is revealed. 

In the 1970s, T. J. Bassler, a pathologist and long distance runner claimed
that no active marathoner has ever died of myocardial infarction,
running would protect against heart attack for five years if your
marathon time was sub four hours, and that running 16000 km would
remove any plaque from the arteries.  Such thinking is still common,
and has been expressed recently in this group.  It is wrong. 

Since we are providing references, see for starters:

Opie,L.H.,Lancet,1975,1:263-66
Waller, B.F., and Roberts, W. C., Am. J. Cardiol., 1980, 45:423

--
Garth Somerville
somerville@bae.ncsu.edu
From: choy@skorpio.usask.ca (I am a terminator.)
Newsgroups: rec.bicycles
Subject: Re: Descending hills
Date: 21 Aug 92 18:53:09 GMT
Organization: University of Saskatchewan, Saskatoon, Canada

In article <1992Aug16.175712.14810@msc.cornell.edu>, tan@lynx.msc.cornell.edu.UUCP (David Tan,Box 219 Baker Lab,54810,2720402) writes:
|> From article <1992Aug14.102108.8273@vax.oxford.ac.uk>, by ftgcdj@vax.oxford.ac.uk:
|> > I heard a story about a guy in a road race being handed a water bottle full of
|> > lead (Pb) at the start of a long descent. Around 8kg (17.6 lbs) extra!
|> > 
|> I think this was in a TdF of many a year ago (was it Coppi?)  He was given a
|> leadfilled bottle by a "spectator", pretended to drink out of it, and pitched
|> it at the bottom of the descent, to another "spectator."
|> 
|> Wish I could remember details...
|> 
|> Dave
|> 
|> > One way to get your speed up, I suppose!
|> > 
|> > -------
|> > Charles
|> > 
|> > ftgcdj@uk.ac.oxford.vax

Hmm. Intuitively I think of the leaning tower of Pisa and 2 black balls
falling side by side. The downward force (forget air effects) on the
heavier ball is greater, but the mass is too so the acceleration is the
same. If you tilt the trajectory of the balls so they fall down a
finite slope that crosses the horizontal at an angle A, the accelerating
force down the slope is

  W sin A - C W cos A  = ma   where

W = weight
C = coefficient of friction which I'll assume to be constant at all
    normal forces under consideration
m = mass
a = acceleration down the slope

Since W = mg where g is something that physicists have not yet explained,
a = g sin a - C g cos A.

It just don't matter how heavy your bike is on a downhill, but I agree that
getting the lead out after the descent helps.

Henry Choy
choy@cs.usask.ca
From: bgeer@javelin.sim.es.com (Bob Geer)
Subject: Re: MYTH or FACT: Do bicycle helmets wear out from age?
Reply-To: bgeer@javelin.sim.es.com
Organization: Evans & Sutherland Computer Corporation
Date: Thu, 20 Aug 1992 21:24:27 GMT

tech@aupair.cs.athabascau.ca (Richard Loken) writes:

>>tlt38517@uxa.cso.uiuc.edu (Terry Thiel) writes:
>>>As an aside I
>>>would not take anything consumer reports says very seriously.  Especially
>>>when they're talking aobut bikes or bike accessories.

>Because they don't have a clue about anything.
>Because they are interested in price and finish not performance or longevity.
>Because they think a bicycle is used on bike paths after carrying it there in
>your new Lexus.
>Because their entire purpose is guilt free consumption.

Hmmmm...sound like gross over-generalizations to me.  I think I'll
ignore it 'til I see the supporting evidence.
-- 
<> Bob `Bear' Geer <>   bgeer@beorn.sim.es.com     (this *should* work)   <>
<>     cola-zombie <>   speaking only for myself, one of my many tricks   <>
<> Salt Lake City, <>    "We must strive to be more than we are, Lal."    <>
<>          Ootah  <>           -- Cmdr. Data, learning schmaltz          <>
Newsgroups: rec.bicycles
From: msp2@hera.uucp (22321-seda-poulin)
Subject: Trek 800 - Need Opinions
Organization: Bellcore, Livingston, NJ
Distribution: usa
Date: Thu, 13 Aug 92 14:09:24 GMT

I'm interested in buying a mountain bike, and I would like
know which mountain bikes people recommended.  I've also been
looking at the Trek 800, and was wondering what experiences
people have had with this bike.  Any help would be appreciated.

					Marta Seda-Poulin
					msp2@bellcore.com

					msp2@hera.bellcore.com (if the above
					doesn't work)

Newsgroups: rec.bicycles
From: gooch@leland.Stanford.EDU (Carl Gooch)
Subject: Re: Tandems - help from experienced riders please?
Organization: DSG, Stanford University, CA 94305, USA
Distribution: na
Date: Fri, 21 Aug 92 01:10:27 GMT

In article <BtAHIG.GLC@math.uwaterloo.ca> arpepper@math.uwaterloo.ca (Adrian Pepper) writes:
>In article <1992Aug20.021537.20807@slc.com> marcs@slc.com (Marc San Soucie) writes:
>>   Mounting the tandem is a bit of a trick for me.
>
>Right cheek (buttwise, that is) presses against nose of saddle. Tandem
>leans every so slightly (5 degrees) to the left. Right foot is injected 
>into pedal system. Left foot rests about 18 inches to two feet out from 
>tandem, bracing. Hands grip brake hoods.
>
>Stoker approaches bike. Who cares how stoker gets on? Stoker gets on.
>That's what stokers do. They get on and get off. Don't tell me from
>stokers. Stoker's feet enter rear pedal systems. Stoker gets comfortable.
>Tandem is leaning slightly, most of the force absorbed by captain's
>well-muscled cheek. Captain and stoker find this position familiar and 
>comfortable. Parade rest. Traffic light stop. Looking good.

That's pretty much what I do.  My preference is to have both feet on
the ground and to sit on the top tube while the stoker gets attached
to the rear pedals.  At stop lights, I again sit on the top tube (with
the back of my thigh this time) and my hip against the saddle, which
sounds pretty much like what Mark describes.  This works well even for
stokers slightly heavier than I.

As Mark commented (and I haven't quoted), having the bike lean the
wrong way is a bad idea, and stoker motion can cause this.  I once
almost dumped my tandem under those circumstances.  When my right foot
comes off the ground, the bike's leaned too far left. :-) But as long
as stokers don't shift around too much while we're stationary, there's
no problem.

Carl

-- 
------------------------------------------------------------------------------
Carl Gooch                       |        Why am I inside at a keyboard when 
gooch@leland.stanford.edu        |        I could be outside riding bike?
------------------------------------------------------------------------------
Newsgroups: rec.bicycles
From: TBARNETT@lexmark.com (Tyler Barnett)
Subject: Vetta 200 Wireless Computer
X-Disclaimer: These views are the poster's and not necessarily those of Lexmark
Organization: Lexmark International, Lexington, KY
Date: Thu, 13 Aug 1992 03:42:37 GMT

I have found a Vetta 200 wireless computer reasonable, and am wondering
how well they work.  I'd like to mount the computer on the tip end of
my aero bars, like my Vetta C10 is.  Will the transmitter on the front
wheel send to the computer ok like this?  Does rain affect communications?
Does this computer interfere with the heart-rate monitors, like the Polar
units?  Any positive/negative experiences with this unit?  Thanks, tyler
N4TY@lexmark.com
From: jaw38638@uxa.cso.uiuc.edu (Jason Andrew Weber)
Newsgroups: rec.bicycles
Subject: Re: Pulley upgrade opinions wanted
Date: 12 Aug 92 12:58:09 GMT
Organization: University of Illinois at Urbana

I used the Bullseye pulley's for a while until upgraded to Shimano XT
deraileurs which come with sealed pulley's.  The Bullseye pulleys are
very smooth.  They do have the problem that they are alluminum.  This
means that they take longer to wear into your chain.  What I mean is that
the link between your pulley's and chain takes a little longer to mesh
smoothly.  This for the first two or three weeks will cause some chain
skipping in the rear.  

If you want tips on installation write me and ask.  I'll E-mail them to ya.

Jason
jaw38638@uxa.cso.uiuc.edu
Newsgroups: rec.bicycles
From: gmack@oakhill.sps.mot.com (Gregg Mack)
Subject: Re: A real pain in the foot
Keywords: injury,shoes
Organization: Motorola Inc., Austin Tx.
Date: Thu, 13 Aug 1992 13:18:36 GMT

In article <1992Aug12.193552.9035@athena.mit.edu> tye@elvis.mit.edu (Tye Brady) writes:
>Hi everybody.
>
>Problem:
>On longer rides/races I find that my right foot get a nasty, arthritic  
>like pain on the outside of the foot, just below the smallest pig.  It  
>starts aching in the shoe on the ride at about mile 40+, and even worse  
>after the ride when I take the shoe off.    
>
>Equipment:
>Time Equipe Carbon size nine (the size of my foot)
>Time Criterium Pedal
>Fit Kit performed at purchase
>
>Questions:
>Is this improper fit?  Does the ski accident have anything to do with  
>this? Am I just over tightening my shoe?  Why is it just my right foot?
>
>tye

Tye,
  I use Time Racing shoes and pedals.  Earlier this spring and summer I was having
the same problem (well, it was just behind the ball of my right foot). It only be-
came painful after 60+ miles, so it only bothered me once a week.   

  Then one night before a long ride, I checked my saddle height and found that it was
about 3/4" below what I had written down that I had set it at last year.  Evidentally,
my bike shop had raised my seat to put my bike on their workstand and then lowered it
more than they should have when they were done.  The terrible pain in my right foot
has never returned after I repositioned my seat!


-- 
Gregg Mack                  --------- __o       __o       __o       __o
gmack@hobbes.sps.mot.com    ------- _`\<,_    _`\<,_    _`\<,_    _`\<,_
Motorola RISC uProcessors   ------ (*)/ (*)  (*)/ (*)  (*)/ (*)  (*)/ (*)
Austin, TX  USA             ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
From: eldred@rrunner.jpl.nasa.gov (Dan Eldred)
Subject: Re: My Bicycle Helmet Experience
Organization: Jet Propulsion Laboratory
Date: Wed, 19 Aug 1992 17:06:02 GMT

In article <1652@grivel.une.edu.au> drobinso@mendel.une.oz.au writes:
>> In article <Bsu5ot.BEo@well.sf.ca.us>, marquis@well.sf.ca.us (Roger Marquis) writes:
>> 
>> I'd agree with you if I had the freedom to choose not to pay for the costs of
>> injured, helmetless cyclists.  Those costs include direct medical costs,
>
>I partly agree.  But if a cyclist, helmeted or not, is injured through no
>fault of his own, by a car driver slamming into him, that motorist, or his
>insurance should be responsible for ALL these costs.  Think of the 
>implications of the alternative.
>
The law requires construction workers to wear hard hats in construction
areas.  If a worker drops a bolt and injures someone who is not wearing
a hard hat, do you think that worker should be responsible for the injuries?

	- Dan
From: kim39@scws8.harvard.edu (John Kim)
Newsgroups: rec.bicycles
Subject: Re: OPINIONS: Trek 2100/2300, etc:  Specialized E
Keywords: (Long)
Date: 21 Aug 92 01:17:12 GMT
Article-I.D.: husc3.1992Aug20.211713.14960
Organization: Harvard University Science Center

> jrawles@leland.Stanford.EDU (jody rawles) writes:
>In the recent discussion of the Trek line there is never any
>mention of the Specialized Carbon Fiber line.
>Jody M. Rawles					
>Stanford, CA 94305 USA			fax:   (415) 493-4901

	So... does this mean I'm in her kill file?  
I will make an effort this weekend, to test ride a few Treks also.  It 
is my understanding that they have bonded carbon frames with aluminum lugs 
and really expensive bonded carbon frames with carbon lugs (the fancy purple
bike in the four-page Bicycle mag spread). They may also have
a model with carbon tubes and titanium lugs.
 -J. Case "Biased-towards-Specialized" Kim
From: flip@sage.cc.purdue.edu (Phillip Russell)
Newsgroups: rec.bicycles
Subject: Re: Stop My Spokes:TrashBar Wheel Editorial
Date: 20 Aug 92 06:59:12 GMT
Organization: Purdue University Computing Center

In article <1510333@hpsad.sad.hp.com> kg@hpsad.sad.hp.com (Ken Gurley) writes:
>A friend and I have had similar problems with Nashbar wheels.
>Burrs on spoke nipple holes penetrating rim tape and puncturing
>the tube and rear wheel spokes breaking (less than a hundred miles
>on the wheels when the problems began). Quality control on the wheel
>building is obviously lacking.

Bull. Sounds more like you guys are going a little overboard here. No
place will be 100%. I've great wheel come from Nashbar. Perfectly
trued and no problems with spokes or anything else. I've currently but
around 2,000 miles on my Nashbar wheels (mtb) without any spokes breaking.
I can't say as much for the original wheels that had to be rebuilt
after about 1,000.

Flip


-- 
    __@  __@        Phillip "Flip" Russell  | Purdue University
  _-\<, -\<,_       flip@sage.cc.purdue.edu | West Lafayette, IN
 (_)/---|/-(_)      "We don't have enough power captain!!!"
Newsgroups: rec.bicycles
From: kjl@iscnvx.lmsc.lockheed.com (K J Leiden)
Subject: SINGLE TRACK request for Penisula
Organization: Lockheed Missiles and Space Co.
Distribution: ba
Date: Fri, 14 Aug 92 17:25:32 GMT

-- 
 Ken Leiden
 kjl@iscnvx.lmsc.lockheed.com
Newsgroups: rec.bicycles
From: shiba@riffnique.csd.sgi.com (Rich Shiba)
Subject: Opinions? XTR shifter/lever
Organization: Silicon Graphics, Inc., Mountain View, CA
Distribution: usa
Date: Mon, 17 Aug 1992 23:03:43 GMT


	I'm interested in hearing from people who have
	used Shimano's new XTR shifter/brake lever combo.
	Trying to decide between rapid fire style and
	plain ole thumb shifters.  

	Are the new XTR shifters done 'righter' than the
		old rapid fire?
	Is the ability to go back to friction with thumb
		shifters still significant?  
	How about the adjustability?  (levers and shifters
		all move together on rapid fire)
	Durability?


	email me directly at shiba@csd.sgi.com

		Thanks!

			-Rich



Newsgroups: rec.bicycles
From: twill@ctp.com (Terry Williams)
Subject: This employeer wants bikes.....
Date: Mon, 17 Aug 1992 12:08:48 GMT
Distribution: us
Organization: Cambridge Technology Partners

Thanks to all who responded to my inquirery regarding  "This employeer
wants bikes at the office".  The responses are still coming in! 
Once all info. has been gathered I'll summerize and post. The input
thus far has been extremely valuable.  
Newsgroups: rec.bicycles
From: bushnell@iscnvx.lmsc.lockheed.com (William D. Bushnell)
Subject: 46T chainring on 130mm bolt circle sought
Organization: Lockheed Missiles and Space Co.
Date: Mon, 17 Aug 92 21:45:06 GMT


I am (still) in the process of converting my touring bike gearing to a
half-step system.  I have all the parts I need except for one important
item: a 46T chainring.  Now, 46T chainrings aren't normally difficult to
find, but my right crank is a triple using a 130mm bolt circle for the large
and middle rings, and 46T rings for this bolt circle are nearly impossible to
find.

I've called all the bike stores in my local calling area (Palo Alto, CA), and
Bike Nashbar, Performance, Colorado Cyclist, and Excel, and none of them has
such a ring.  Most stores had a 46T ring in the more common 110mm bolt circle
(64.7mm between adjacent bolt centers), but that's not what I'm looking for.

If you happen to have such a ring lying about that you'd like to sell or if
you know where I can find one, I'd like to hear from you.  The distance between
adjacent bolt centers should be about 76.4mm on a five-bolt ring.

-- 
bushnell@lmsc.lockheed.com	(Bill Bushnell)
From: BRANDT_JOBST/HP1900_01@HPLOMG.HPL.HP.COM
Newsgroups: rec.bicycles
Subject: Re: FAQ Where Can I find it? (Was: Re: Descending hills)
Date: 21 Aug 92 18:04:38 GMT

Stewart Fleming writes:

> In the British magazine _Cycling Weekly_ 1992 guide to the Tour de France,
> July 1992 is a section entitled "Did you Know", followed by a number of facts
> about the Tour.  One is the following :

   - "In 1953, France's Jean Robic, who won the race in 1947,
   - was given a feeding bottle full of lead at the top of the
   - Tourmalet pass to make him descend faster."

Just because it appears in print doesn't make this story more credible.
In 1947 these were rough dirt roads on which descending speed was far more
a function of rider skill and occurred at relatively low speeds compared
to today's descents.  Therefore, additional weight would not give any
advantage.  Besides, the weight of a lead filled bottle (they were aluminum)
would break a bottle cage more rapidly than today, considering the roads.
I remain doubtful of this piece of bicycle lore but it's a favorite.

Robic's picture hangs on my wall as he climbs this very pass followed by
a Bugatti equip car, spare tire and aluminum water bottle on the bars.
He is solo with no bikes in sight for miles as he climbs the unpaved road.
This was a centerfold-fold in Mirroir du Cyclisme many years ago.

jobst_brandt@hplabs.hp.com
From: border@wilbur.nas.nasa.gov (Ryan A. Border)
Newsgroups: rec.bicycles
Subject: Re: Descending hills
Date: 13 Aug 92 15:32:12 GMT
Organization: NAS, NASA Ames Research Center, Moffett Field, CA

Something else nobody has mentioned is (sorry Jobst...) sunglasses.
High speed wind in your face can cause your eyes to tear and 
subsequently blur your vision.  If you're just learning how to
descend, the last thing you want to have is trouble seeing the
road.  Nothing fancy, or expensive is required, but something that
wraps around your face a little will help you keep your focus on
riding the bike- not trying to see.

Just this weekend, I was descending on our tandem and took a direct
bumble-bee (well it was some sort of big bug) hit in the sunglasses.  
We were doing 45-50mph, and I'll credit the bee with 10mph in the opposite 
direction.  Made a nice splatter, just like a car windshield, and damn near
knocked the glasses off my face.  Made me very glad I had them on.  
_______________________________________________________________________________
* Ryan A. Border               border@nas.nasa.gov,   border@craywr.cray.com  *
* Cray Research Inc., On Site Applications Analyst 415-604-4633  o__ o__      *
* Numerical Aerodynamic Simulator, NASA Ames Research Center    _.>/-.>/'_    *
* Never trust someone who can count to 1023 on their fingers.  ( ) \---\(*)...*
==============================================================================*
Newsgroups: rec.bicycles
From: jamesp@cs.uwa.oz.au (James Pinakis)
Subject: Anybody seen the August "Winning"?
Organization: Dept. Computer Science, University of Western Australia.
Date: Fri, 14 Aug 1992 02:04:45 GMT

Hello all,

I am a subscriber to Winning and have yet to receive the August issue.  Has
anyone else experienced this problem or has mine somehow been lost in the mail?
I'd phone them but the toll-free number doesn't work overseas and I don't feel
like spending money on a phone call.  Perhaps some kind soul would like
to phone the toll-free number and enquire on my behalf?

james
Newsgroups: rec.bicycles