|Leg Length||Little giant|
Jan 13, 2002 12:43 PM
|I have been advised that there may be a solution to discomfort being felt in lower back by having offset crank arms made. However, the builder requires an accurate measurement of both legs. Has anyone out there been this route before or can suggest the most accurate method of measuring both my legs ?|
|re: Leg Length||Akirasho|
Jan 13, 2002 1:33 PM
|... never had it done, but a sports physiologist or sports med arthropod would be a good bet.
You'd need someone who was skilled at locating (relative to what and why you're measuring) and measuring from morphological landmarks (not always easy even on some skinny folks).
Remain In Light.
|Are you sure it's leg length???||PdxMark|
Jan 13, 2002 5:19 PM
|Maybe the bike needs to be fitted to you - with something far less exotic than offset cranks...
I bought a bike based on size measurements made by a very good Serotta fitter (turned out I didn't get a Serotta). I rode the bike a bit after it arrived and noticed some lower back pain - but didn't think much of it. As part of my original fitting, I was finally able to get an appointment for a follow-up fitting on the new bike.
In the follow-up fitting I was told that the bike as it arrived fit perfectly (according to the fitter), except that the handlebars needed to be raised 1 cm. Once I did that, all back pain disappeared. (I think I never mentioned the lower back pain, since I hadn't thought much of it...)
Moral of the story - a bike that fit me in every regard except a 1 cm offset in handlebar height was causing aches. I made the adjustment and the aches were gone. I'm now thoroughly convinced of the magic a good bike fitter can do.
Jan 13, 2002 8:57 PM
|Legs have been measured already and are different.....was just wondering if I could get it down to a mm measurement ??|
|Forget the offset cranks unless your legs are seriously. . .||allervite|
Jan 14, 2002 1:12 PM
|out of wack. Everyone's legs are a little different in length, but usually not enought to matter. Try shimming your cleats before you fork out the serious bucks on custom cranks.|
|simple and accurate way||peloton|
Jan 13, 2002 9:24 PM
|Measure from the bottom of the foot to the navel. Repeat for both legs. This works well and is pretty accurate in determining leg length descreptancy.
It's a good thing to deal with. Lower back pain can definitly be caused by a difference in leg length.