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Any validity to these assertions?

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Cycling Equipment
Published
23 January 2004
Last activity
27 January 2004
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Jay Hill
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  1. I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough that
    it doesn't matter.

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while the
    front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

  2. On Thu, 22 Jan 2004 18:03:06 -0800, Jay Hill <[email hidden]>

    Quoted message said:

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal.

    Why would you want to do this, anyway?

    Either the bike goes forward from the foot on the pedal, or you use the brake and have to trackstand
    while not standing still, or the pedal is at the bottom of the stroke and is barely different from
    keeping that foot on the ground.

    Unless we're talking about this bike: skibladner.nopenny farthing.jpg it should
    be easiest to mount with a foot on the ground.

    Quoted message said:

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while the
    front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

    Sounds invalid to me. Even an inexperienced rider would not output power into the pedals while
    braking; most would offer at least a little extra braking at the rear via the pedals, whether
    purposely or not.

    Now, maybe on a fixed gear tandem with deaf, blind, mute riders with no sense of balance...
    --
    Rick Onanian

  3. Jay Hill said:

    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    I've heard this argument for some time, even from Sheldon Brown who is quite knowledgeable about
    bikes. There may be something to it as hopping on this way does put all your weight on one side
    of the crank, at the same time as the bike is leaned over a little. Practically, I'm doubtful
    that it's anything to worry about. Many cyclists habitually do this (including me) and have never
    come to grief.

    Quoted message said:

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while
    the front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

    Pedaling while the front brake is applied is similar to braking harder, from the perspective of the
    load applied to the front wheel. It's the same situation as a freewheel bike, with this difference:
    true track bikes' forks are constructed of round tubing rather than the oval shape of many road
    bikes. These forks may not be as strong in the fore-and-aft direction and were not designed for use
    with a front brake. This have never been a problem for my track bike, fitted with a brake, but YMMV.

    Note that a fixed gear bike is not necessarily a track bike.

    --
    Ted Bennett Portland OR

  4. On Thu, 22 Jan 2004 18:03:06 -0800, Jay Hill <[email hidden]> may

    have said:

    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    It may, however, break out the eye at the end of the crank where the pedal is threaded in. I do not
    think the reasoning given for the caution is sound, though my experience says that there is a
    different valid issue to address here. (OTOH, the only such failures that I've had happen to me were
    with one-piece cranks.)

    Quoted message said:

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage

    Well, first I'd have to see the stats on this, and then determine how many broke because the bikes
    were repeatedly driven into stationary objects. Here I must question the first principle before the
    rest is even stated.

    Quoted message said:

    because there is an too much stress from the combination of the front wheel being driven by the
    fixed gear while the front brake is applied. I assume this is invalid because the rider is either
    not driving or actually braking with the fixed gear when braking with the hand brake.

    Utter nonsense, as far as I'm concerned. The few fixie riders I've seen, if anything, are less
    likely than a conventional bike rider to use the brake while pedalling forward. In my experience,
    someone aboard a conventional bike is actually more likely to be the one doing this, as a means of
    facilitating trackstanding.

    How often do non-carbon, non-suspension forks break, anyway? Bloody seldom, from what I can see.

    --
    My email address is antispammed; pull WEEDS if replying via e-mail.
    Yes, I have a killfile. If I don't respond to something,
    it's also possible that I'm busy.
    Words processed in a facility that contains nuts.

  5. Jay Hill said:


    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    This doesn't bother the bottom bracket, but is very stressful to the wheels. Bicycle wheels are very
    strong against radial loads, but quite weak against side loads.

    It's also somewhat wobbly which is dangerous in traffic or confined spaces. Don't do it.

    See: sheldonbrown.comstarting.html

    Quoted message said:

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while
    the front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

    That's a bunch of used cattle fodder.

    Forks on fixed gear bikes _without_ front brakes have a higher rate of breakage, cause they're more
    likely to crash into stuff!

    Sheldon "One For Two" Brown +-------------------------------------------------------------+
    | Give a man a fire, and he will stay warm for a day. | Set a man on fire, he stays warm for the
    | rest of his life. |
    +-------------------------------------------------------------+ Harris Cyclery, West Newton,
    Massachusetts Phone 617-244-9772 FAX 617-244-1041 harriscyclery.comharriscyclery.com Hard-to-find parts
    shipped Worldwide captainbike.comcaptainbike.com sheldonbrown.comsheldonbrown.com

  6. Quoted post said:

    Originally posted by Jay Hill
    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough that
    it doesn't matter.

    Are you talking about clipping in the left foot and then pushing off so you're swinging the right leg over while you're on the move? I've been doing that my entire cycling life. There's no more graceful way to mount a bike in my opinion - I even try to keep my toes pointed and knee straight like an olympic gymnast while I do it.

    Or maybe you're talking about holding onto a wall or parking meter while you swing over your leg? I could see how that's more stressful on the wheels.

  7. "Rick Onanian" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Jay Hill said:

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal.

    Why would you want to do this, anyway?

    Either the bike goes forward from the foot on the pedal, or you use the brake and have to
    trackstand while not standing still, or the pedal is at the bottom of the stroke and is barely
    different from keeping that foot on the ground.

    How about to mount and dismount a cyclocross bike on the fly?

  8. Sheldon Brown:

    Quoted message said:

    Jay Hill wrote:

    Quoted message said:
    Quoted message said:

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough
    that it doesn't matter.

    This doesn't bother the bottom bracket, but is very stressful to the wheels. Bicycle wheels are
    very strong against radial loads, but quite weak against side loads.

    It's also somewhat wobbly which is dangerous in traffic or confined spaces. Don't do it.

    Fair enough when in traffic, but I see sprinters do the wobble all the time, with the bike leaning
    from side to side; if so, why is lateral loading not an issue with their wheels, or is it?

  9. In article <[email hidden]>, [email hidden] says...

    Quoted message said:

    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while the
    front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

    How do people think up this stuff? 1 is obviously wrong. 2 makes half sense. The front wheel is not
    driven, so it makes no sense. What probably does happen is that someone drills a fork that did not
    come drilled for a front brake. They did not drill the hole properly and that causes the fork to
    break. Even if they do drill the hole properly, the crown may not be designed to take braking
    forces, so it maky break.
    ---------------
    Alex

  10. "Doug" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:


    "Rick Onanian" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    Jay Hill said:

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal.

    Why would you want to do this, anyway?

    Either the bike goes forward from the foot on the pedal, or you use the brake and have to
    trackstand while not standing still, or the pedal is at the bottom of the stroke and is barely
    different from keeping that foot on the ground.

    How about to mount and dismount a cyclocross bike on the fly?


    To dismount you're standing on your left pedal briefly. To re-mount you jump onto the saddle then
    try and find your pedals as you're rolling along.

    Doesn't really apply except for that brief period dismounting. Generally you're coasting along
    balanced, not trying to start moving.

    Mike

  11. Jay Hill said:
    Quoted message said:
    Quoted message said:

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough that
    it doesn't matter.

    I replied:

    Quoted message said:
    Quoted message said:

    This doesn't bother the bottom bracket, but is very stressful to the wheels. Bicycle wheels are
    very strong against radial loads, but quite weak against side loads.

    It's also somewhat wobbly which is dangerous in traffic or confined spaces. Don't do it.

    Jose Rizal asked in his unusual font:

    Quoted message said:

    Fair enough when in traffic, but I see sprinters do the wobble all the time, with the bike leaning
    from side to side; if so, why is lateral loading not an issue with their wheels, or is it?

    They're straddling the bike. They lean it, but can't lean it all that far without bumping their legs
    on the top tube.

    Someone standing to one side of the bike has to lean it quite a bit farther it make it balance.

    Sheldon "A Matter Of Degrees" Brown +-----------------------------------------+
    | He not busy being born is busy dying. | -Bob Dylan |
    +-----------------------------------------+ Harris Cyclery, West Newton, Massachusetts Phone 617-244-
    9772 FAX 617-244-1041 harriscyclery.comharriscyclery.com Hard-to-find parts shipped Worldwide
    captainbike.comcaptainbike.com sheldonbrown.comsheldonbrown.com

  12. jshill-<< I assume they aren't valid >><BR><BR> << I've heard the following two arguments from
    people who worked in bike shops, >><BR><BR> << 1) Do not mount a bicycle like a horse, by putting a
    foot in the left pedal and swinging the right leg over the seat to the other pedal. Allegedly this
    is bad because it puts too much stress on the bottom bracket. >><BR><BR> << 2) Forks on fixed gear
    bikes with a front brake have a higher rate of breakage because there is an too much stress from the
    combination of the front wheel being driven by the fixed gear while the front brake is applied

    Quoted message said:
    Quoted message said:

    <BR><BR>

    JGBSM....why the bike biz is in trouble.

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

  13. I have conducted an informal study over the years to determine why some riders have chronic spoke
    breakage problems and other riders don't. I observed that ALL of my customers who were having
    chronic spoke breakage problems mounted their bikes like a horse. Those customers who I convinced to
    mount their bikes "normally" have had either reduced incidence or no spoke breakage. I know,
    unscientific but anecdotal evidence does seem to point towards mounting the bike this way is not
    kind to the wheels. Clarke www.clarkecycles.com

    Quoted message said:

    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while
    the front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.

  14. Quoted message said:
    Quoted message said:


    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough that
    it doesn't matter.

    why would you do that?

    what i always do is

    lean the bike towards me a little [easier] lift leg over bike lower leg raise bike now i am standing
    over the top tube [same as waiting at a stop sign now] wait til ready to take off clip in on left
    foot, raise to about 3:00, pedal off clip in right foot.

    what is the necessity for mounting, clipping in, and taking off right away?

    wle.

  15. Jay Hill said:


    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the right
    leg over the seat to the other pedal. Allegedly this is bad because it puts too much stress on
    the bottom bracket. I assume this is invalid because the wheels' spokes will flex enough to
    absorb some of the stress, and besides that the bottom bracket is strong enough that it doesn't
    matter.

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is an
    too much stress from the combination of the front wheel being driven by the fixed gear while
    the front brake is applied. I assume this is invalid because the rider is either not driving or
    actually braking with the fixed gear when braking with the hand brake.


    They both sound pretty barking to me. (1) is common practice among cyclo-crossers and the loads are
    probably similar to those in a bunch sprint where the bike is thrown around under the rider.

    (2) sounds like total codswallop because no-one in their right mind would pedal and brake at the
    same time. Moreover, pedalling only produces a few pounds of forward force because of gearing
    and the size of the rear wheel; this is insignificant compared to the force needed to scrub off
    your momentum at the traffic lights.

    Pedalling at a fairly furious 300W and a steady 22mph translates to a propelling force of only 30N
    or about 7lbf at the rear wheel. A smartish stop from the same speed, over a distance of 15 metres,
    requires a braking force of 66lbf, using a total mass of 90kg/198lb. That's almost an order of
    magnitude more. The fork won't be troubled even if you do keep pedalling.

  16. On Fri, 23 Jan 2004 15:08:48 GMT, "Clarke White" <[email hidden]>

    may have said:
    Quoted message said:

    I've heard the following two arguments from people who worked in bike shops, and I assume they
    aren't valid, but I wonder enough to not dismiss them immediately, especially the second one.

    1) Do not mount a bicycle like a horse...

    I have conducted an informal study over the years to determine why some riders have chronic spoke
    breakage problems and other riders don't. I observed that ALL of my customers who were having
    chronic spoke breakage problems mounted their bikes like a horse. Those customers who I convinced
    to mount their bikes "normally" have had either reduced incidence or no spoke breakage. I know,
    unscientific but anecdotal evidence does seem to point towards mounting the bike this way is not
    kind to the wheels. Clarke www.clarkecycles.com

    Besides, getting on the right way is just plain easier, unless the top tube is at a gonadally-
    hazardous altitude.

    --
    My email address is antispammed; pull WEEDS if replying via e-mail.
    Yes, I have a killfile. If I don't respond to something,
    it's also possible that I'm busy.
    Words processed in a facility that contains nuts.

  17. clark-<< I have conducted an informal study over the years to determine why some riders have chronic
    spoke breakage problems and other riders don't. I observed that ALL of my customers who were having
    chronic spoke breakage problems mounted their bikes like a horse. >><BR><BR>

    I think the problem is with the wheelbuilder, not mounting a bike like a horse. I cannot believe the
    side loads on a wheel when getting on this way are more severe that when riding aggressivley. Stress
    relieving and taking windout out of the spokes stress a wheel more as well...and that sure doesn't
    cause spoke breakeage.

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

  18. [email hidden] (wle) wrote in message news:<[email hidden]>...

    Quoted message said:
    Quoted message said:
    Quoted message said:


    1) Do not mount a bicycle like a horse, by putting a foot in the left pedal and swinging the
    right leg over the seat to the other pedal. Allegedly this is bad because it puts too much
    stress on the bottom bracket. I assume this is invalid because the wheels' spokes will flex
    enough to absorb some of the stress, and besides that the bottom bracket is strong enough
    that it doesn't matter.

    why would you do that?

    what i always do is

    lean the bike towards me a little [easier] lift leg over bike lower leg raise bike now i am
    standing over the top tube [same as waiting at a stop sign now] wait til ready to take off clip in
    on left foot, raise to about 3:00, pedal off clip in right foot.

    what is the necessity for mounting, clipping in, and taking off right away?

    wle.

    The same as Sheldon and others reccommend. I agree for a loaded bike, and it is an essential thing
    to know. However, the rest of the time, LIGHTEN UP!!!!!!! I often mount my fixie by pushing off and
    jumping on the saddle. Then find the swinging pedals. Or the horse mount. In one smooth motion and
    while moving, I doubt the stresses on the wheels are that high.

    Whitfit.

  19. Zog The Undeniable said:
    Jay Hill said:

    2) Forks on fixed gear bikes with a front brake have a higher rate of breakage because there is
    an too much stress from the combination of the front wheel being driven by the fixed gear
    while the front brake is applied. I assume this is invalid because the rider is either not
    driving or actually braking with the fixed gear when braking with the hand brake.

    Quoted message said:

    (2) sounds like total codswallop because no-one in their right mind would pedal and brake at the
    same time.

    Quite true. About the only (weak) justification for (2) I can think of is that most "real" track
    bikes have round fork blades while road bikes have oval blades elongated in axis of the wheels.
    Presumably this may make such blades more able to handle braking forces along that axis, but I don't
    know if it is anything significant.

    --

    -John ([email hidden])

  20. On 24 Jan 2004 14:26:08 GMT, [email hidden] (Qui si parla
    Campagnolo) wrote:

    ---clip

    Quoted message said:


    I think the problem is with the wheelbuilder, not mounting a bike like a horse. I cannot believe
    the side loads on a wheel when getting on this way are more severe that when riding aggressivley.
    Stress relieving and taking windout out of the spokes stress a wheel more as well...and that sure
    doesn't cause spoke breakeage.

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

    ------------------

    I think you're right, Peter.

    As a modest 7k rider of short rides, 180 pound "horsemounter" , I can reflect on no spoke breakage
    during the past 20k mi, mainly on 27" aluminum wheels with straight-guage spokes, also 700c's. I stress-
    relieve, tension and true my own; and prior I'd break an occasional driveside spoke on ordinary,
    untreated wheels.

    One may conjure a mental image of excessive bike-lean in the horsemount process, but in fact the
    bike remains close to vertical. Both hands on the top bars, the upper torso is moves forward and
    rightward over the top tube to compensate for the right leg still on the bike left. And one doesn't
    jump on the left pedal, instead a smooth step. The weight distribution favors the front wheel.

    Give it a try and observe -- weight placed as preliminary to a hand stand on the front wheel as it
    slowly moves.

    If there are additional stresses on the spokes/wheels, they don't show themselves to me. And one
    would expect at least a rare spoke snap during the mounting -- anyone observe one of these?

    I enjoy horsemounting because it's fun, easy, fast, natural (to me).

    Otherwise it's clomp, clomp, straddle, step & go -- mechanical and without grace. 'jus my opinion.

    Bruce Ball Colo Spgs

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