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Crank length advice/help requested.

Started by Ken Pisichko · · Last activity · 18 posts · 2,304 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:

    http://tinyurl.com/2djka

    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: http://sheldonbrown.com/gain

    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
    http://harriscyclery.com
    Hard-to-find parts shipped Worldwide
    http://captainbike.com http://sheldonbrown.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: http://sheldonbrown.com/gain

    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] http://www.sfu.ca/~rcousine/wiredcola/
    President, Fabrizio Mazzoleni Fan Club

  8. ....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

  9. "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.

  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.

    http://www.sheldonbrown.com/harris/cranks.html#11074

    _ 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.

    http://www.yellowjersey.org/cranx.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

    http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=42317&item=3671222639&rd=1

    _ Booker C. Bense

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

    In article <[email hidden]>,

    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.

    http://www.yellowjersey.org/cranx.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

    http://www.peterwhitecycles.com/carmina.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]>
    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] http://www.sfu.ca/~rcousine/wiredcola/
    President, Fabrizio Mazzoleni Fan Club

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