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05-19-2004, 06:14 PM
| #51 (permalink) |
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Posts: n/a
| Re: Crank arm length question In article <[Only registered and activated users can see links. ]>, Chris Neary <[Only registered and activated users can see links. ] > wrote: > >>My Levi's are a 32 inch inseam and I run 175's on my mountain bike and > >>tandem, and 172.5's on my road bike. > > > >Mountain bikes have very different requirements for crank length. I > >don't know anything about tandems. > > Mountain bikes, tandems, and time trial bikes tend to have slightly longer > cranks since cadence on these bikes is usually lower but torque is somewhat > higher. Why do mountain bikes run long cranks? Torque can be adjusted with lower gearing to make the gain ratio <http://www.sheldonbrown.com/gain.html> come out the same, and pedal strikes are a huge problem for mountain bikes even on straight stretches. I intend to put this theory to the test as soon as I find some 165 mm cranks that fit within my budget. -- Ryan Cousineau, [Only registered and activated users can see links. ] [Only registered and activated users can see links. ] President, Fabrizio Mazzoleni Fan Club |
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05-20-2004, 05:28 AM
| #52 (permalink) |
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Posts: n/a
| Re: Crank arm length question I wrote: >>Of course, having said that, I don't remember if my inseam was 30 >>inches when I measured that way.  On Wed, 19 May 2004 23:50:51 GMT, Chris Neary <diabloridr@comcast.net > wrote: >I answered the question as I did since the original poster only supplied his >pants inseam. What size pants do you wear? Inseam 30, or 29 if I can find it, but my pants don't relate particularly well to my actual physical inseam. It seems the only choices in pants are to have the belt up around your neck, or to have the crotch near your knees (and the legs way too long) (like that silly urban style seen among today's youths). If I created a new line of jeans, they'd be made at least partially out of coolmax, and the belt-to-crotch height would be very short, allowing guys with aerobellies to be comfortable both at the waist AND at the crotch. Then, my inseam would probably be 30 or maybe even a little more, without having to struggle with the damned hem...and I wouldn't have to alternate between looking like an old fart and looking like a young fool. -- Rick Onanian |
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05-20-2004, 05:28 AM
| #53 (permalink) |
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Posts: n/a
| Re: Crank arm length question I wrote: >>Of course, having said that, I don't remember if my inseam was 30 >>inches when I measured that way. On Wed, 19 May 2004 23:50:51 GMT, Chris Neary <diabloridr@comcast.net > wrote: >I answered the question as I did since the original poster only supplied his >pants inseam. What size pants do you wear? Inseam 30, or 29 if I can find it, but my pants don't relate particularly well to my actual physical inseam. It seems the only choices in pants are to have the belt up around your neck, or to have the crotch near your knees (and the legs way too long) (like that silly urban style seen among today's youths). If I created a new line of jeans, they'd be made at least partially out of coolmax, and the belt-to-crotch height would be very short, allowing guys with aerobellies to be comfortable both at the waist AND at the crotch. Then, my inseam would probably be 30 or maybe even a little more, without having to struggle with the damned hem...and I wouldn't have to alternate between looking like an old fart and looking like a young fool. -- Rick Onanian |
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05-20-2004, 05:28 AM
| #54 (permalink) |
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Posts: n/a
| Re: Crank arm length question I wrote: >>Of course, having said that, I don't remember if my inseam was 30 >>inches when I measured that way. On Wed, 19 May 2004 23:50:51 GMT, Chris Neary <diabloridr@comcast.net > wrote: >I answered the question as I did since the original poster only supplied his >pants inseam. What size pants do you wear? Inseam 30, or 29 if I can find it, but my pants don't relate particularly well to my actual physical inseam. It seems the only choices in pants are to have the belt up around your neck, or to have the crotch near your knees (and the legs way too long) (like that silly urban style seen among today's youths). If I created a new line of jeans, they'd be made at least partially out of coolmax, and the belt-to-crotch height would be very short, allowing guys with aerobellies to be comfortable both at the waist AND at the crotch. Then, my inseam would probably be 30 or maybe even a little more, without having to struggle with the damned hem...and I wouldn't have to alternate between looking like an old fart and looking like a young fool. -- Rick Onanian |
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05-20-2004, 05:28 AM
| #55 (permalink) |
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Posts: n/a
| Re: Crank arm length question I wrote: >>Of course, having said that, I don't remember if my inseam was 30 >>inches when I measured that way. On Wed, 19 May 2004 23:50:51 GMT, Chris Neary <diabloridr@comcast.net > wrote: >I answered the question as I did since the original poster only supplied his >pants inseam. What size pants do you wear? Inseam 30, or 29 if I can find it, but my pants don't relate particularly well to my actual physical inseam. It seems the only choices in pants are to have the belt up around your neck, or to have the crotch near your knees (and the legs way too long) (like that silly urban style seen among today's youths). If I created a new line of jeans, they'd be made at least partially out of coolmax, and the belt-to-crotch height would be very short, allowing guys with aerobellies to be comfortable both at the waist AND at the crotch. Then, my inseam would probably be 30 or maybe even a little more, without having to struggle with the damned hem...and I wouldn't have to alternate between looking like an old fart and looking like a young fool. -- Rick Onanian |
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05-20-2004, 05:28 AM
| #56 (permalink) |
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Posts: n/a
| Re: Crank arm length question I wrote: >>Of course, having said that, I don't remember if my inseam was 30 >>inches when I measured that way. On Wed, 19 May 2004 23:50:51 GMT, Chris Neary <diabloridr@comcast.net > wrote: >I answered the question as I did since the original poster only supplied his >pants inseam. What size pants do you wear? Inseam 30, or 29 if I can find it, but my pants don't relate particularly well to my actual physical inseam. It seems the only choices in pants are to have the belt up around your neck, or to have the crotch near your knees (and the legs way too long) (like that silly urban style seen among today's youths). If I created a new line of jeans, they'd be made at least partially out of coolmax, and the belt-to-crotch height would be very short, allowing guys with aerobellies to be comfortable both at the waist AND at the crotch. Then, my inseam would probably be 30 or maybe even a little more, without having to struggle with the damned hem...and I wouldn't have to alternate between looking like an old fart and looking like a young fool. -- Rick Onanian |
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05-20-2004, 05:35 AM
| #57 (permalink) |
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Posts: n/a
| Re: Crank arm length question On Wed, 19 May 2004 18:14:06 -0700, Ryan Cousineau <[Only registered and activated users can see links. ]> wrote: >Why do mountain bikes run long cranks? Torque can be adjusted with lower >gearing to make the gain ratio <http://www.sheldonbrown.com/gain.html> >come out the same, and pedal strikes are a huge problem for mountain >bikes even on straight stretches. While pedal strikes are a big issue, a few millimeters won't help. Off roading includes very random quick bits of different grades and unexpected slowdowns from terrain. Gear choice is neither an art nor a science, and often it is a terrible time to change gears right when you need to. As a result, it's helpful to have whatever leverage you can available to shove a buttload of torque into whatever gear you happen to be in. This, of course, has been pulled entirely from the MYASS system: [Only registered and activated users can see links. ] -- Rick Onanian |
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05-20-2004, 05:35 AM
| #58 (permalink) |
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Posts: n/a
| Re: Crank arm length question On Wed, 19 May 2004 18:14:06 -0700, Ryan Cousineau <[Only registered and activated users can see links. ]> wrote: >Why do mountain bikes run long cranks? Torque can be adjusted with lower >gearing to make the gain ratio <http://www.sheldonbrown.com/gain.html> >come out the same, and pedal strikes are a huge problem for mountain >bikes even on straight stretches. While pedal strikes are a big issue, a few millimeters won't help. Off roading includes very random quick bits of different grades and unexpected slowdowns from terrain. Gear choice is neither an art nor a science, and often it is a terrible time to change gears right when you need to. As a result, it's helpful to have whatever leverage you can available to shove a buttload of torque into whatever gear you happen to be in. This, of course, has been pulled entirely from the MYASS system: [Only registered and activated users can see links. ] -- Rick Onanian |
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05-20-2004, 05:35 AM
| #59 (permalink) |
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Posts: n/a
| Re: Crank arm length question On Wed, 19 May 2004 18:14:06 -0700, Ryan Cousineau <[Only registered and activated users can see links. ]> wrote: >Why do mountain bikes run long cranks? Torque can be adjusted with lower >gearing to make the gain ratio <http://www.sheldonbrown.com/gain.html> >come out the same, and pedal strikes are a huge problem for mountain >bikes even on straight stretches. While pedal strikes are a big issue, a few millimeters won't help. Off roading includes very random quick bits of different grades and unexpected slowdowns from terrain. Gear choice is neither an art nor a science, and often it is a terrible time to change gears right when you need to. As a result, it's helpful to have whatever leverage you can available to shove a buttload of torque into whatever gear you happen to be in. This, of course, has been pulled entirely from the MYASS system: [Only registered and activated users can see links. ] -- Rick Onanian |
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05-20-2004, 05:35 AM
| #60 (permalink) |
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Posts: n/a
| Re: Crank arm length question On Wed, 19 May 2004 18:14:06 -0700, Ryan Cousineau <[Only registered and activated users can see links. ]> wrote: >Why do mountain bikes run long cranks? Torque can be adjusted with lower >gearing to make the gain ratio <http://www.sheldonbrown.com/gain.html> >come out the same, and pedal strikes are a huge problem for mountain >bikes even on straight stretches. While pedal strikes are a big issue, a few millimeters won't help. Off roading includes very random quick bits of different grades and unexpected slowdowns from terrain. Gear choice is neither an art nor a science, and often it is a terrible time to change gears right when you need to. As a result, it's helpful to have whatever leverage you can available to shove a buttload of torque into whatever gear you happen to be in. This, of course, has been pulled entirely from the MYASS system: [Only registered and activated users can see links. ] -- Rick Onanian |
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