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Crank length advice/help requested.

Started by Ken Pisichko · · Last activity · 18 posts · 1,534 views

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Cycling Equipment
Published
8 April 2004
Last activity
9 April 2004
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Ken Pisichko
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  1. I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    I notice a LOT of Dura-ace and Ultegra gear available on e-
    bay. It seems that when gear is couple of years old then the
    mind starts wandering and the "latest gear" is considered
    buy some to be (2 years later) dated/obsolete so they sell
    it and purchase the latest gizmos. At the age of 56 I want
    good parts, but want to consider used but good parts instead
    of the latest gizmos.

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't be
    using this bike for racing nor for credit-card type touring.

    If it matters, my inseam on my pants is 36". I ride (in the
    city for commuting only) my 30 year old Peugeot 10 fine with
    it's stock cranks, and a recent garage sale (aka cheap
    Chinese bike) mountain bike. Both have custom seat posts to
    put my butt further "back" from the rest of the post. That
    way the bikes fit me better. Now I want a custom frame built
    to fit me properly without such "black smith" approaches
    that are really a compromise for a touring bicycle.

    Advice on crank length for touring?

    Thanks in advance.

    Ken Winnipeg, Canada

  2. You would likely be comfortable with a 177.5, if not a
    180 given your leg length. If you're touring, and not
    worried so much about spin or cadence, a 180 will give
    you more leverage, and hence the ability to turn a larger
    gear, especially in the hills. I would not suggest going
    smaller than a
    177.5.

    "Ken Pisichko" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    I notice a LOT of Dura-ace and Ultegra gear available on
    e-bay. It seems that when gear is couple of years old then
    the mind starts wandering and the "latest gear" is
    considered buy some to be (2 years later) dated/obsolete
    so they sell it and purchase the latest gizmos. At the age
    of 56 I want good parts, but want to consider used but
    good parts instead of the latest gizmos.

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't be
    using this bike for racing nor for credit-card type
    touring.

    If it matters, my inseam on my pants is 36". I ride (in
    the city for commuting only) my 30 year old Peugeot 10
    fine with it's stock cranks, and a recent garage sale (aka
    cheap Chinese bike) mountain bike. Both have custom seat
    posts to put my butt further "back" from the rest of the
    post. That way the bikes fit me better. Now I want a
    custom frame built to fit me properly without such "black
    smith" approaches that are really a compromise for a
    touring bicycle.

    Advice on crank length for touring?

    Thanks in advance.

    Ken Winnipeg, Canada

  3. Quoted message said:

    From: Ken Pisichko

    Quoted message said:

    Advice on crank length for touring?

    Here's one item to look at:

    tinyurl.com2djka

    Crank length is personal, not just by leg length. Preference
    doesn't necessarily match proportion. Since power gain/loss
    seems slight for different lengths, you are free to ride
    what you like. Cool, huh?

    Quoted message said:

    At the age of 56 I want good parts, but want to consider
    used but good parts instead of the latest gizmos.

    Brifters are past the gizmo stage (just an opinion). Campy
    brifters are rebuildable, Shimano not. I'd buy new there (at
    least) so I could put my own scratches on the levers <g>.
    Your preference for the system you like, both work great.

    Hands-on shifting on a loaded touring bike-- sounds good
    here. --TP

  4. Ken Pisichko said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    Quoted message said:

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't be
    using this bike for racing nor for credit-card type
    touring.

    Quoted message said:

    If it matters, my inseam on my pants is 36". I ride (in
    the city for commuting only) my 30 year old Peugeot 10
    fine with it's stock cranks,

    Your old Peugeot probably has 170mm cranks. You'd probably
    do better with 175mm. In the old days long cranks could
    cause a pedal to hit the ground when pedaling through a
    turn. That may still be an issue if you're not using
    clipless pedals.

    I think 177.5 mm is only available from Campagnolo and only
    on some models. Dura Ace has an 180 mm, but 175 mm is
    largest available in Ultegra and below IIRC.

    The longer cranks give more leverage and make it *slightly*
    easier to turn a given gear. But your feet will travel in a
    larger circle, and it may be harder to spin a fast cadence.

    My inseam is 35.5" and I've used 170, 172.5, and 175 mm
    cranks. I prefer the 175, but it's not a huge difference.

    If you're going with a triple crankset, you might be better
    off with Ultegra than Dura Ace (read some of the previous
    threads on Dura Ace triples).

    I'd stay away from used components unless they were were
    removed from the bike at the time of puchase (e.g., customer
    wanted to upgrade a brand new bike).

    Art Harris

  5. On Wed, 07 Apr 2004 21:17:19 -0500, Ken Pisichko <[email hidden]> may

    have said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    I notice a LOT of Dura-ace and Ultegra gear available on
    e-bay. It seems that when gear is couple of years old then
    the mind starts wandering and the "latest gear" is
    considered buy some to be (2 years later) dated/obsolete so
    they sell it and purchase the latest gizmos. At the age of
    56 I want good parts, but want to consider used but good
    parts instead of the latest gizmos.

    What length of a crank should I consider for a
    touring bicycle?

    Solely my opinion: 180mm

    Good luck finding them on eBay, though. I've been hunting
    for a set for a friend whose height and inseam are the same
    as yours for several months with no scores in the price
    range he wants to achieve.

    --
    My email address is antispammed; pull WEEDS if replying via e-mail.
    Typoes are not a bug, they're a feature.
    Words processed in a facility that contains nuts.

  6. Ken Pisichko asked

    Quoted message said:


    Quoted message said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    Quoted message said:

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't be
    using this bike for racing nor for credit-card type
    touring.

    Quoted message said:

    If it matters, my inseam on my pants is 36". I ride (in
    the city for commuting only) my 30 year old Peugeot 10
    fine with it's stock cranks,



    Art Harris replied:

    Quoted message said:


    Your old Peugeot probably has 170mm cranks. You'd probably
    do better with 175mm.

    There's no evidence that there's any advantage to longer
    cranks, but for a person your height, there's likely no harm
    in going to 175s.

    Quoted message said:

    The longer cranks give more leverage and make it
    *slightly* easier to turn a given gear.

    Yes, but if you want easier pedaling there's no reason to
    stay in a "given gear." Selecting cranks on the basis of
    gearing is a mistake, you should select the gearing based on
    the cranks that you find most comfortable biomechanically.

    There is no known disadvantage to short cranks, but long
    cranks are sometimes known to cause knee problems for
    certain riders.

    See: sheldonbrown.comgain

    Quoted message said:

    If you're going with a triple crankset, you might be
    better off with Ultegra than Dura Ace (read some of the
    previous threads on Dura Ace triples).

    Fer shure! You can't get proper touring gearing with Dura-
    Ace cranks, no way to put anything smaller than a 30 in
    front because it uses a unique bolt pattern.

    Sheldon "Ultegra Is Good" Brown +---------------------------------------------
    +
    | Admiration, n.: Our polite recognition | of another's
    | resemblance to ourselves. | --Ambrose Bierce, "The
    | Devil's Dictionary" |
    +---------------------------------------------+ 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

  7. In article <[email hidden]>,

    Sheldon Brown said:

    Ken Pisichko asked

    Quoted message said:


    Quoted message said:

    I am in the finance stage of putting together a
    touring bicycle. I am 6'4.5" and will eventually be
    about 220 lbs.

    Quoted message said:

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't
    be using this bike for racing nor for credit-card type
    touring.

    Quoted message said:

    There's no evidence that there's any advantage to longer
    cranks, but for a person your height, there's likely no
    harm in going to 175s.

    Quoted message said:

    The longer cranks give more leverage and make it
    *slightly* easier to turn a given gear.

    Yes, but if you want easier pedaling there's no reason to
    stay in a "given gear." Selecting cranks on the basis of
    gearing is a mistake, you should select the gearing based
    on the cranks that you find most comfortable
    biomechanically.

    There is no known disadvantage to short cranks, but long
    cranks are sometimes known to cause knee problems for
    certain riders.

    See: sheldonbrown.comgain

    I'm quite interested in crank lengths. I started out on
    170mm on my road bike like everyone else (5'6", my pants
    are 30" inseam), but ran into some achilles tendon issues
    that fought with long-standing knee issues. Some of you get
    the joke already: for the achilles tendon, dropping your
    seat slightly helps; for patellar tendonitis, raising it
    slightly helps.

    My solution was to shorten the cranks and move my cleats
    back on my shoe. The latter reduced ankle flex tendencies,
    which helps the tendons. The shorter cranks mean less knee
    flexing, which is good for the knees.

    I run 165mm cranks, and I do notice that sometimes there's a
    certain constrained feeling to my pedaling circle. Since
    this is better than not being able to ride because my ankle
    or knee is in pain, I accept it. I also get some benefit in
    racing from the shorter cranks: less pedal strike in
    corners, which means I can accelerate a bit sooner and more
    confidently.

    The punchline is that my mountain bike has 175mm cranks,
    mostly because I can't find suitable 165mm cranks at my
    usual cheap prices.

    As most of you know, mountain bike cranks tend to the long
    side. 180s are not unheard of, and 175 is pretty common. But
    my thinking is that if you can get the gearing right (I'm
    sure I can), short cranks will mean a little more obstacle
    clearance while pedaling.

    Though maybe that's a tech question for you: I want to
    shorten my cranks, and my BB is shot (cartridge BB with
    lateral play=dead BB). The rings are usable (5-bolt
    pattern), but I'll give them up if I can get a good deal.
    Any suggestions for a good replacement? About the only
    BB/crank I'm not very interested in is the Shimano pipe-
    spindle system (I think it will be squeezed out by the
    Hollowtech II setup in very short order). ISIS and square-
    taper would probably work okay for me.

    --
    Ryan Cousineau, [email hidden]
    sfu.cawiredcola President, Fabrizio
    Mazzoleni Fan Club

  8. "Ken Pisichko" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.

    Advice on crank length for touring?

    I'm 6'10"/235. I do touring, club riding, mountain biking,
    and errand running with 175 mm cranks on all my (5) bikes.
    Just go with 175's, they're the largest common size,
    anything larger isn't worth the hassle of scrounging it up,
    you'd likely not even tell the difference with 180's.
    Touring would be the last place I'd expect crank length to
    matter, and only then to the extent that a too-long crank
    might make your knees a little more sore after a long day. I
    wouldn't worry about it.

  9. ...I'd stay away from used components unless they were were
    removed from the

    Quoted message said:

    bike at the time of puchase (e.g., customer wanted to
    upgrade a brand new bike).

    Art Harris

    I agree with Art. Be careful about "used" parts. You may be
    setting yourself up for purchasing junk. I have seen people
    list parts as "excellent condition", but in reality, they
    were ready for the trash.

    I often sell components on line, but only those that
    are: NIB (new in box), NOS (new on shelf - no box), Take-
    Off (taken off a new bike), or Like New (maybe a few
    test rides - less than 10 miles total). I have sold
    dozens of components over the last decade, and never had
    an unhappy customer.

    Rocketman58

  10. -----BEGIN PGP SIGNED MESSAGE-----

    In article <[email hidden]>,

    Ryan Cousineau said:


    Though maybe that's a tech question for you: I want to
    shorten my cranks, and my BB is shot (cartridge BB with
    lateral play=dead BB). The rings are usable (5-bolt
    pattern), but I'll give them up if I can get a good deal.
    Any suggestions for a good replacement? About the only
    BB/crank I'm not very interested in is the Shimano pipe-
    spindle system (I think it will be squeezed out by the
    Hollowtech II setup in very short order). ISIS and square-
    taper would probably work okay for me.

    _ There's any number of 110/74 165mm cranks out there. You
    can get Sugino's with chainrings for less than $100.

    sheldonbrown.comcranks.html

    _ You can get older square taper Deore XT cranks in 165mm
    on Ebay and swap spiders pretty easily. The spiders are
    mighty pricy though for some sizes. Jonesbikes had a few
    for sale recently.

    _ The TA Camina is an expensive if very pretty solution and
    can be used with just about any chainring in existance.

    yellowjersey.orgcranx.html

    _ I'm particularly intrigued by the thought of a 94mm
    double,
    32/48 or 50 would be pretty useful, or at least
    entertaining.

    _ Race Face makes 165mm cranks as well if you want something
    beefier. Here's a deal

    cgi.ebay.comeBayISAPI.dll
    7&item=3671222639&rd=1

    _ Booker C. Bense

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  11. -----BEGIN PGP SIGNED MESSAGE-----

    In article <[email hidden]>, <bbense+rec.bi-

    Quoted message said:

    -----BEGIN PGP SIGNED MESSAGE-----

    Quoted message said:


    _ The TA Camina is an expensive if very pretty solution and
    can be used with just about any chainring in existance.

    yellowjersey.orgcranx.html

    _ I'm particularly intrigued by the thought of a 94mm
    double,
    32/48 or 50 would be pretty useful, or at least
    entertaining.

    _ Whoops, pasted the wrong URL

    peterwhitecycles.comcarmina.asp

    _ Booker C. Bense

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  12. Thanks to all who took the time to answer this question. As
    I still have lots of time to do the bike, I can look for
    parts - 175 mm or maybe 177.5mm crank length if I can find.
    Thanks for the heads up on Dura-Ace and difficulty in
    finding a suitable triple chain ring for that crank set
    Also, I might borrow a bike with each crank length to try
    out and then decide if finding a 177.5 mm is worth the time,
    effort, and cost.

    Although it was not part of my original post I do have a
    fused right ankle, but I have also concluded that riding
    with a leg brace due to a fused ankle is not going to make
    much of a difference either in the pleasure factor of
    riding. I will definitely have S&S couplers on the bike
    frame, but that is another story - as is case hardened chain
    and two locks for bike "security".

    The points raised regarding buying used versus take-off at
    original sale versus NOS are well taken. Thank you to
    everyone once again :-)

    Ken Winnipeg, Canada

  13. Ken Pisichko <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    I am in the finance stage of putting together a touring
    bicycle. I am 6'4.5" and will eventually be about 220 lbs.


    <snip>

    Quoted message said:

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't be
    using this bike for racing nor for credit-card type
    touring.


    <snip>

    Quoted message said:

    Advice on crank length for touring?

    Ken-

    I'm your size (6-foot-4, 220 pounds, 36" inseam) but I'm a
    little younger (40). I recently switched a couple bikes from
    180mm cranks to 175mm and barely noticed the difference. I
    have one bike (a single-speed beater) with 170mm, but I only
    use it for coffee-shop runs, so that's hardly a good model.

    I'd say that you'll be comfortable with 175mm cranks. Loaded
    touring is more about being comfortable day-to-day. If
    you're going to be climbing lots of mountains and don't mind
    pedaling slowly (something I *don't* like), you might like
    180mm cranks.

    Jeff

  14. Your suggestion adds some credence to my idea of trying out
    a couple of bikes with the two different crank lengths. yes,
    my idea of touring is comfort and seeing the beauty in aa
    non-traumatic manner. The other cutting edge stuff is for
    the younger crowd and guys like Lance Armstrong :-) I
    learned a long time ago that there is a place and style for
    us alll and at my age i want to keep in that "touring"
    place. The racers/competitive types always pass me. So do
    the local bicycle "cops". Thanks again.

    Jeff Wills said:

    Ken Pisichko <[email hidden]> wrote in message
    news:<[email hidden]>...

    Quoted message said:

    I am in the finance stage of putting together a
    touring bicycle. I am 6'4.5" and will eventually be
    about 220 lbs.


    <snip>

    Quoted message said:

    What length of a crank should I consider for a touring
    bicycle? The bicycle will have custom front and rear
    racks/pannier frames, but that just means that I won't
    be using this bike for racing nor for credit-card type
    touring.


    <snip>

    Quoted message said:

    Advice on crank length for touring?

    Ken-

    I'm your size (6-foot-4, 220 pounds, 36" inseam) but I'm a
    little younger (40). I recently switched a couple bikes
    from 180mm cranks to 175mm and barely noticed the
    difference. I have one bike (a single-speed beater) with
    170mm, but I only use it for coffee-shop runs, so that's
    hardly a good model.

    I'd say that you'll be comfortable with 175mm cranks.
    Loaded touring is more about being comfortable day-to-day.
    If you're going to be climbing lots of mountains and don't
    mind pedaling slowly (something I *don't* like), you might
    like 180mm cranks.

    Jeff

  15. Harris said:

    Your old Peugeot probably has 170mm cranks. You'd probably
    do better with 175mm. In the old days long cranks could
    cause a pedal to hit the ground when pedaling through a
    turn. That may still be an issue if you're not using
    clipless pedals.

    Every time I get on my Peugeot I notice the bent piece of
    stamping on one of the original all-metal pedals. Stupid me
    - I was in a hurry to go drinking one night after an evening
    graduate school class and jumped on the bike and proceeded
    to pedal down a short driveway and turn on to the deserted
    street at the same time. Bum over tea kettle I went! Tore
    some skin off my arm, but could still use it fine to lift a
    couple of glasses later. No helmet in those foolish days :-(

  16. On Thu, 08 Apr 2004 10:23:41 -0700, Ryan Cousineau <[email hidden]>
    wrote:

    <big snip>

    Quoted message said:

    I'm quite interested in crank lengths. I started out on
    170mm on my road bike like everyone else (5'6", my pants
    are 30" inseam), but ran into some achilles tendon issues
    that fought with long-standing knee issues. Some of you get
    the joke already: for the achilles tendon, dropping your
    seat slightly helps; for patellar tendonitis, raising it
    slightly helps.

    My solution was to shorten the cranks and move my cleats
    back on my shoe. The latter reduced ankle flex tendencies,
    which helps the tendons. The shorter cranks mean less knee
    flexing, which is good for the knees.

    I run 165mm cranks, and I do notice that sometimes there's
    a certain constrained feeling to my pedaling circle. Since
    this is better than not being able to ride because my ankle
    or knee is in pain, I accept it. I also get some benefit in
    racing from the shorter cranks: less pedal strike in
    corners, which means I can accelerate a bit sooner and more
    confidently.

    This is interesting to me as I also use 165mm cranks on my
    'road' bike (I am only slightly taller). I bought the cranks
    because I desired the particular model at the time and I
    decided to see whether I could tolerate the length. I also
    notice the difference in the pedalling circle but I actually
    quite like it (as well as being able to pedal while
    cornering more often), I bet my knees prefer it and I aim to
    continue using this size in the future.

    Quoted message said:

    The punchline is that my mountain bike has 175mm cranks,
    mostly because I can't find suitable 165mm cranks at my
    usual cheap prices.

    I hear ya.

    Quoted message said:

    As most of you know, mountain bike cranks tend to the long
    side. 180s are not unheard of, and 175 is pretty common.
    But my thinking is that if you can get the gearing right
    (I'm sure I can), short cranks will mean a little more
    obstacle clearance while pedaling.

    I also have 175mm cranks on my mountain bike because, as you
    point out, this size is the most common and I usually buy
    used. Now that I spend most of my riding time on 165s, I
    have to admit that the 175s are not quite as comfortable for
    constant pedalling at high cadence. Since I spend less time
    on the MTB and when riding the local trails my pedalling is
    much more sporadic and I stand to pedal more often, it's not
    a big deal for me at this point.

  17. <[email hidden]>
    wrote in :"]news:[email hidden]:

    Quoted message said:


    _ There's any number of 110/74 165mm cranks out there. You
    can get Sugino's with chainrings for less than $100.


    I am sure Ryan is talking $20 cdn not $100US. By the by Ryan
    my son got a good set of Sugino 165's for $20 at the used
    bike shop on Main near 17th for his new fixie.

  18. In article <[email hidden]>,

    Mike Latondresse mikelat@no_spamshaw.ca said:

    <[email hidden]-
    d.edu> wrote in :"]news:[email hidden]:

    Quoted message said:


    _ There's any number of 110/74 165mm cranks out there.
    You can get Sugino's with chainrings for less than $100.


    I am sure Ryan is talking $20 cdn not $100US. By the by
    Ryan my son got a good set of Sugino 165's for $20 at the
    used bike shop on Main near 17th for his new fixie.

    D'oh! Those should have been mine!

    Heh. Actually, I have a set of Sakae CX 165s just sitting
    around right now waiting for a project. They're not that
    rare in road configurations (I have a couple sets of 110
    BCD, and Sugino 130 BCD on my race bike), though triples are
    a bit more desirable.

    I've been a bit constrained because I keep thinking I want
    to use my current rings, and the present crankset is a 94mm
    Compact (that's one thing I don't think I made clear
    earlier: this is for my mountain bike); I think it's Deore
    LX cranks. And the BB needs changing, so there's that. But
    of course I want something I can find in the bargain bin.

    I mean, if I had the cash, I wouldn't [censored]-foot around:
    Race Face Diabolus 165s with triple rings; lots of weight,
    but my sought-after 165mm length and that funky external-
    bearing "just-like-Shimano" design.

    It's all good,
    --
    Ryan Cousineau, [email hidden]
    sfu.cawiredcola President, Fabrizio
    Mazzoleni Fan Club

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