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I'd like to find out if anyone has tried measuring with a recumbent bike, and if so how that works out. I am scheduled to get a hip replacement in December and I understand for some period of time you are not supposed to bend your leg past a 90 degree angle. (I signed up before I knew that!)

My bike with drop handlebars is out; a "sit up straight" bike might pass muster (I welome opinions on that); I was thinking recumbent might be the best way to prevent over-bending.

My initial thought is that a lower eye level could diminish your ability to pick out the best line to ride, but I don't know by how much.
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Bob and I have had this discussion off line, but I'll post it here for the benefit of others.

Although I've been a recumbent rider for 20 years or so, I never measured with my recumbent. As a two-wheel bike recumbents tend to follow a somewhat crooked path, not good for measuring. And, a three-wheel recumbent, although tracking straighter, probably wouldn't get close enough to a curb to meet the 30 cm requirement.

I suspect that the wobble is due to balance although in all the time I've been riding, I don't really feel out of balance. It's not a huge wobble, but it must be noticeable enough that when riding on a road with traffic, cars tend to give me a wide berth. Perhaps they're afraid that I'll fall over in front of them.

There are different types of recumbents. Mine has under-seat steering and a short wheelbase (the crank is in front of the front wheel and the handle bars are beneath the seat). I suspect that a long wheelbase version or one with above-seat steering would wobble less. I also expect that viewing the counter could be a problem on either version.

Also, the action of your legs is very much the same as on an upright bike, but with the added stress of poor hill climbing capability.


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