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How do you know when your "Q factor" is right?

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How do you know when your "Q factor" is right?

Old 12-21-05, 01:21 AM
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mooncake
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How do you know when your "Q factor" is right?

Bought some Speedplay X-5s tonight and I'm kind of having a problem dialing in the lateral cleat position .

How should you feel fit-ise when you have your Q factor is correct? Is it better to have your feet too close together rather than too wide?
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Old 12-21-05, 01:52 AM
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I adjusted the Q factor so that my ankle won't hit the crank even with 9 degree of float.
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Old 12-21-05, 05:01 AM
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How should you feel fit-ise when you have your Q factor is correct?
When there is a perfectly straight line from your thigh, right through your knee, and into your feet. The guy who fitted me used a laser for this.
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Old 12-21-05, 02:37 PM
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Originally Posted by EURO
When there is a perfectly straight line from your thigh, right through your knee, and into your feet. The guy who fitted me used a laser for this.
used a laser for this
Is this something you can buy at Home Depot?
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Old 12-21-05, 03:27 PM
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Originally Posted by EURO
When there is a perfectly straight line from your thigh, right through your knee, and into your feet. The guy who fitted me used a laser for this.
use sharks with frickin' laser beams on their heads.

Seriously, you don't need a laser to do this, a plumb line will work. While straughtis a good place to start, it can vary depending on the rider's ergonomics and comfort.
 
Old 12-21-05, 03:51 PM
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I am not an expert in bike fit but don't think that cleat positioning is truly an adjustment of Q factor. Cranksets have different Q factors (distance between the outside surfaces of the cranks where the pedals are mounted). Some pedals are made with Q factor adjustments (you can adjust the "spindle length") but Speedplays do not offer that adjustment. I think that Q factor determines the alignment of the knee and the foot. Cleat adjustment, on the other hand (or foot, as it were), should establish the best contact point of the pedal with the foot.
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Old 12-21-05, 04:06 PM
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The majority of the accomplished riders I see tend to ride knees tilted in. Always wondered why.
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Old 12-21-05, 04:25 PM
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Is this something you can buy at Home Depot?
Yes. $29.99



Laser Level. Projects Line in Any Direction & Manually Levels For Vertical or Horizontal Applications. Easy Wall Mount System For Simple Adjustments & fine Tuning. Bullet Can Also Be Used For Floor Application.

• Projects line in any direction on walls
• Easy wall mount system
• Uses one pin for hands free convenience
• Can be used on the floor for layout assistance
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Old 12-21-05, 04:37 PM
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or you could tie a 1/2" nut to a piece of string...

my price .20p
buy it now
i accept paypal
order now for christmas delivery...
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Old 12-22-05, 07:57 PM
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Originally Posted by EURO
Yes. $29.99

So how the heck would you use this on a cleat placement application?
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Old 12-23-05, 02:05 AM
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Originally Posted by EURO
When there is a perfectly straight line from your thigh, right through your knee, and into your feet. The guy who fitted me used a laser for this.
I very often agree with you, but using a laser for that is very much giving a a big F about a persons anatomy. That's just stupid.

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Old 12-23-05, 02:28 AM
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I always try to get it so I am close to the cranks as possible.. When the back part of your shoes rubs on the cranks, you are too close.
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Old 12-23-05, 02:37 AM
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your q factors right on when its in the middle of p and r.
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Old 12-23-05, 04:26 AM
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It would be really cool if once, just once, Americans would act like they weren't all a bunch of thirteen year olds about the human body. What I mean to say is, it would be great if none of you prudes clicked on "Spam" for Lectron's post, and just act like an adult, but I know you will...(It'll probably be the same person who foamed at the mouth over Buycycling's "Sex Issue." )
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Old 12-23-05, 10:50 AM
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Originally Posted by pigmode
The majority of the accomplished riders I see tend to ride knees tilted in. Always wondered why.
It just looks that way, due to large leg muscles.

A straight line Q setting would not work for a woman.
 
Old 12-23-05, 10:53 AM
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Originally Posted by krispistoferson
It would be really cool if once, just once, Americans would act like they weren't all a bunch of thirteen year olds about the human body. What I mean to say is, it would be great if none of you prudes clicked on "Spam" for Lectron's post, and just act like an adult, but I know you will...(It'll probably be the same person who foamed at the mouth over Buycycling's "Sex Issue." )
That's the moral code, show all the dismembered soldiers of war (Heros) and graphic violence you want, even to kids, just don't show a nipple or Jebus will send you to heck.
 
Old 12-23-05, 11:13 AM
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My Q factor is all over the map as they vary greatly from my track frame to my mountain bike. Never really cared about it.....
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Old 09-04-15, 08:27 PM
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Originally Posted by EURO View Post
When there is a perfectly straight line from your thigh, right through your knee, and into your feet. The guy who fitted me used a laser for this.
What part of the thigh, knee and feet?
I am going to assume the center of knee and feet, but how do I find the center of my thigh?
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Old 09-04-15, 08:31 PM
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Q-factor is always right. Any information to the contrary is BS.
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Old 09-04-15, 08:52 PM
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zombie thread
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Old 09-04-15, 09:55 PM
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Those speedplays have way too much adjustments. I just dont have pedals. I just stick my big toe into the crankarm
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Old 09-04-15, 10:08 PM
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Originally Posted by r8dr_rider View Post
I just dont have pedals. I just stick my big toe into the crankarm
I tried this technique, but my big toes won't fit, and I lack the dexterity to use my pinkie toes. So I'm ovah heah using pedals like a commoner.
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Old 09-04-15, 10:26 PM
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Originally Posted by DrIsotope View Post
I tried this technique, but my big toes won't fit, and I lack the dexterity to use my pinkie toes. So I'm ovah heah using pedals like a commoner.
Pheasants! You probably use a saddle too dont you. No saddle here. I like that direct to bike feeling. plus no saddle, pedals or handle bars means less weight. Yeah i just stick my finger in the stem and turn when needed. No brakes like those fixe kids and i manually change my gears by moving the rear derailleur by hand.
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Old 09-05-15, 04:45 AM
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Originally Posted by r8dr_rider View Post
Pheasants! You probably use a saddle too dont you. No saddle here. I like that direct to bike feeling. plus no saddle, pedals or handle bars means less weight. Yeah i just stick my finger in the stem and turn when needed. No brakes like those fixe kids and i manually change my gears by moving the rear derailleur by hand.
Pheasants?

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Old 09-05-15, 08:04 AM
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Originally Posted by rpenmanparker View Post
Pheasants?

Lmao! IPAs and auto correct doesnt mix well
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