Australia and New Zealand · Public discussion

Tyre Pressure

Started by Peter McCallum · · Last activity · 23 posts · 1,719 views

Thread navigation

Jump through the discussion

Go to the original post, the replies on this page, or the latest preserved contribution.

Thread details

What we know about this thread

Original section
Australia and New Zealand
Published
27 May 2005
Last activity
2 June 2005
Original author
Peter McCallum
Posts
23
Discussion status
Public discussion
Total views
1,719
Views / 30 days
0

The navigation and discussion metadata provide context. Posts remain in their original chronological order.

Showing posts 21–23 of 23
Posts remain in their original chronological order.

Text size
  1. Quoted message said:
    Quoted message said:
    Quoted message said:

    > Sheldon doesn't directly address the issue of power. With the
    > extensions, it is possible to apply maximum dry-weather braking power
    > more easily than from the top lever position.

    That was true for the old-style levers with exposed cables, but is not
    true for modern "aero" levers. See above.

    Interesting. How modern is modern, by the way? Just in case I'm in the
    market for a second hand bike.

    Basically anything that runs the cables under the handlebar tape,
    though Shimanos are notably better than Dia Compes.

    Actually modern brake levers are one of the most worthwhile upgrades
    for an older bike.

    See: http://harriscyclery.com/brakes

    Interesting. I've got an '04 model Giant OCR3 with Sora hardware. Even in
    the drops, I can't stand the bike on its nose like I can most crappy
    mountain bikes and I can't brake anything like as hard from the hoods as I
    can in the drops. (I actually get significantly harder braking by using the
    back brake as well as the front when braking as hard as I can from the
    hoods) Is this a setup issue, a hardware issue? I'd really like to be able
    to stop harder, it's the one thing about going to a road bike that I'm not
    happy with.

  2. Hi Sheldon,

    Thanks for your reply.

    Sheldon Brown said:
    David Trudgett said:

    Your elaborations here of what you had on your website are quite
    valid, of course; it's just that maybe some of those elaborations
    could perhaps make it onto the web page. I only read the pertinent
    section on brake extensions, though, so it's just possible there was
    some context I missed that may have put a slightly different spin on it.

    I've revised and expanded the entry at:

    http://sheldonbrown.com/gloss_e-f.html#extensionlevers

    Hey, that's great! Much better than it was. Appreciate your taking the
    time to attend to it.

    By the way, I noticed a small typo: "reaach" near the end of the first
    para.

    Quoted message said:


    Quoted message said:

    Some more comments below.

    Quoted message said:
    Quoted message said:

    "Well made" extension levers do exist (though no longer in production.)
    However, they're very uncommon, at least in the U.S. Might be
    different in Oz. Up north, the crummy Dia-Compe units originally
    designed as an add-on to Weinmann brake levers were ubiquitous in the
    late '70s and early '80s.

    I've no idea how common they are in Oz (ones that are "well made",
    that is). As you say, I doubt that they are still in production.

    Also, the ones I have at least don't appear to be "add-ons" (in the
    sense of after-market).

    So you still aren't willing to reveal what kind you have...?

    It's not a secret, if that's what you mean! If they had any visible
    markings on them, no doubt I would have mentioned it. The bike itself
    is an Australian brand, 'Cyclops', and the model is 'Javelin'. I
    picked it up (for $25, and I was ripped off! ;-) ) second-hand in bad
    condition and did it up, replacing brake and gear cables, chain,
    pedals, tyres, and retensioning the wheel spokes. Didn't need to
    overhaul the bottom bracket and headset, remarkably (though I should
    probably get around to doing it for preventive maintenance). Because
    some of the spokes had seized up, though, preventing proper
    tensioning, the rear wheel started to come out of true, so I also (a
    few months later on) replaced both wheels (from another second-hand
    bike). At the same time, I replaced the front brake caliper, as well
    as the front and rear brake shoes.

    What all that has to do with brake levers, I don't know! But I
    wouldn't want to be accused of holding back information! ;-) <evil-grin/>

    Anyone else here have a Cyclops, by the way? Maybe they're collectors'
    items! ;-)

    Quoted message said:
    Quoted message said:

    Quite. Mine are pretty much like that, which is why I'm extremely
    cautious if I occasionally have to ride (short distances) in those
    conditions. The old steel rims are definitely death traps in wet
    weather, brake extensions or not! :-)

    Interesting use of the word "cautious" to describe riding a bike with
    inadequate brakes. ;-)

    It sounds worse than it is, Sheldon. For starters, it's not my only
    bike, as you know, and I ride my other bike when it rains (which isn't
    nearly frequently enough these days -- dams are getting pretty
    low). My other bike has no problems stopping in the wet (nice V
    brakes, aluminium rims). For seconds, in a year and a half or so of
    almost daily riding (only down to the local shops and the train
    station, really), I think I've been caught maybe two or three times in
    the rain, which means it's a rare event to begin with. And for
    desserts, those times that I +have+ been in the rain on it, I *have*
    ridden very cautiously so that there was absolutely no greater danger
    to myself or anyone else, than under normal conditions. Believe it or
    not.

    As for "inadequate", that has two meanings, only one of which is
    true. The brakes are not inadequate if you ride according to their
    capabilities. The key is to know what those capabilities and
    limitations are. This is the same with any equipment. Is a road bike
    inadequate because you can't take it down mountain trails safely? It
    sure is according to one meaning of the word. But, if for some reason
    you had to one day ride a road bike off road, you would do so very
    cautiously, would you not? You would employ sufficient caution to make
    it just as safe as using an MTB (or safer!): you'd go very slowly,
    follow a different line, walk it, carry it over difficult bits and so
    on, depending on the actual conditions. The same is the case with my
    junk heap bike: it's perfectly adequate for dry weather short-distance
    riding, in the places I want to ride it. In the wet (once in a blue
    moon), caution is required. That means riding very slowly, walking it,
    going a different route, avoiding going near to cars and
    pedestrians. Used that way, the bike is perfectly "adequate". It's
    only +inadequate+ if you want to ride it like a wet weather bicycle.

    That's a long-winded way to say that the brakes are perfectly
    adequate. (Note: adequate != ideal) For +some other+ person, who wants
    to use it differently, the same bike might have +inadequate+
    brakes. The combination of usage patterns: (1) nearly always dry
    weather; and (2) short distances, makes the brakes _adequate_ for
    *me*. Hope that's clear! ;-)

    Sure, I could do up the brakes and put aluminium wheels on, as well as
    a lot of other things, but it is a throw away bike, after all, in the
    sense that it's not going to hurt if someone liberates it from my
    possession while it's sitting outside the shops unlocked or at the
    train station. Doing it up like that would be counter-productive in
    this situation. In fact, for my use, *gears* are not even necessary
    and I'd be better off without them. Even a fixed wheel might do the
    job, except that it violates SGC (Slacker's Guide to Cycling) rules
    (never pedal downhill!).

    If the weather here becomes a lot wetter than it has been, then, of
    course, bets are off, and I would probably need a better steed,
    because riding at walking or jogging speed is not what I want a bike
    for! ;-).

    Quoted message said:

    Not being able to brake from the top of the hoods is a solved problem.
    Modern "aero" brake levers permit anybody to do this.

    Yes, but I thought we were talking history and/or old equipment here.
    Casual riders (nearly all) of the type we've been discussing don't use
    "aero" levers these days because they don't use drop bars. In fact,
    they virtually universally use either BMX style bikes (the kids) or
    MTB or "comfort" style bikes, which don't look like road bikes at all.

    Quoted message said:
    Quoted message said:

    Such a person probably needs a mountain bike style setup.

    Not necessarily.

    Yes, that's what the "probably" means! :-) But I get what you're
    trying to say.

    Quoted message said:


    A taller handlebar stem, or one with less forward extension would also
    do the trick. Back in the '70s, however, such stens were nearly
    impossible to find. Even today, some riders eschew such stems because
    they look un-stylish. Many non-racers ride bikes that are set up with
    a racer-type position for reasons of looks.

    For one meaning of "many", I don't find that to be the case over here
    in my experience, for the simple reason that MTBs are nearly universal
    among non-racing, casual riders here. My LBS, for instance, currently
    has one (I think) racing-type bike on display (which is about the most
    they ever have), and the rest are the BMXs, MTBs, "comfort" bikes, and
    so on. The racing bikes also tend to start off at around $700 to $800,
    IIRC, which is more than twice what you would pay for an average MTB
    there.

    Of the very few casual or non-racing riders who *do* go for a racing
    bike or racing position, then what you say may be true. I wouldn't be
    able to tell, because I rarely if ever see any casual riders of
    racing-style bikes these days (I'm the only one I know of around here,
    and my reasons are not because of the looks).

    Actually, very few adults around here ride bicycles at all. They seem
    to think they're for kids. Wait till petrol gets to two or three
    dollars a litre...

    Quoted message said:

    Actually modern brake levers are one of the most worthwhile upgrades
    for an older bike.

    Sure, in a general sense.

    Quoted message said:

    +-------------------------------------------------------+
    | Military conscription is the worst form of slavery. |
    | A more enlightened age will consider it a War crime. |
    +-------------------------------------------------------+

    Too true. And a more enlightened age will also consider war a crime.

    David

    --

    David Trudgett
    http://www.zeta.org.au/~wpower/

    Many young soldiers enter military service having bought the whole
    story about the US military as some liberatory force, and the
    discovery of its true nature creates a traumatic sense of dislocation
    and betrayal.

    -- Stan Goff, retired from U.S. special forces.

  3. dtmeister said:
    David Trudgett said:


    Anyone else here have a Cyclops, by the way? Maybe they're collectors'
    items! ;-)

    Yup! Well, it's leaning up against a tree in my parents yard. My mum
    wants to grow plants and stuff around it as some sort of garden
    art piece.

    It was the bike they bought me for commuting to school. I wheeled it
    out of Belmont Kmart (Perth) circa 1984 and rode it to school and

    So it *was* a Kmart special! Darn! :-(

    Quoted message said:

    around the place until I graduated to a car.

    If I remember, it had steel rims, Schrader valves, Shimano
    drivetrain and stem shifters.

    Sounds very similar! It wasn't red, too, was it? Be quiet about the
    stem shifters, though! Sheldon thinks they're like dull knives pointed
    towards the groin. What he doesn't realise is that Unix users have
    nothing to fear.

    Quoted message said:

    Don't particularly remember anything
    bad about it, but then I wasn't a cycling nut, I wanted a car. 🙁

    No, it's just average. At least it claimed to be an Australian brand,
    though I bet all the parts were imported! :-)

    Quoted message said:


    Oh, and it also had suicide levers. 🙂

    Goes without saying! ;-)

    Cheers,

    David

    --

    David Trudgett
    http://www.zeta.org.au/~wpower/

    It's sociologically interesting, though scary, that you can be inside
    an evil system and be somehow unaware of it.

    -- Actor Anthony Sher on growing up in apartheid-South Africa,
    interviewed by John Walsh, The Independent, 1 May, 2000

Active in the last 60 minutes

Active in this thread

0 users · 0 guests ·0 bots ·0 total

No signed-in users are active right now.

No known search crawlers active right now.