152mm Triple Crankset - source needed
04-08-09, 12:22 AM
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152mm Triple Crankset - source needed
Looking to find a 152mm triple for my son's 24" mountain bike. It has a double now and he is riding harder.
I know SR Suntour makes one, because it is used on the Specialized Hotrock. But I can't seem to find a place that sells it. His current bike has a square taper BB. Anyone know a source
I know SR Suntour makes one, because it is used on the Specialized Hotrock. But I can't seem to find a place that sells it. His current bike has a square taper BB. Anyone know a source
04-08-09, 01:07 AM
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I believe Profile Racing offers a pretty wide variety of crank arm lengths, might see what they've got...
04-28-09, 09:54 PM
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I went to a local used bike place and found a triple from an old Trek. Turns out that Suntour makes one, but it is only available in Europe! Go figure. Now a new Bottom Bracket...
04-28-09, 11:18 PM
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04-30-09, 07:22 PM
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Do you know if they will work on a bike other than MTB? I am looking into shortened cranks because I cannot bend my right knee more than 60 degrees, and currently have to do all my pedaling with my left leg. If I could get the cranks short enough I might be able to pedal a full 360 degrees with my right leg.
The smaller rings are rarely a problem because you can really spin shorties when you need to.
If both legs are the same length, you need the same length cranks. Several people have asked for a specific length recommended by an Orthopedic Dr. or a Physical Therapist.
Another method is to use boards to add height to a step, to see how much higher you can place your limited foot above your good one, without tilting your pelvis. 1/2 this distance is crank length.
05-04-09, 10:45 AM
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Very few of those shortened IsoFlows end up on mountain bikes. Most go on recumbents, but quite a few go to riders of non-'bents with range of motion issues. I recently sold a 95mm set to a guy who is fit, but has very restricted motion in one knee. Despite this he is able to be competitive in Brevets.
The smaller rings are rarely a problem because you can really spin shorties when you need to.
If both legs are the same length, you need the same length cranks. Several people have asked for a specific length recommended by an Orthopedic Dr. or a Physical Therapist.
Another method is to use boards to add height to a step, to see how much higher you can place your limited foot above your good one, without tilting your pelvis. 1/2 this distance is crank length.
The smaller rings are rarely a problem because you can really spin shorties when you need to.
If both legs are the same length, you need the same length cranks. Several people have asked for a specific length recommended by an Orthopedic Dr. or a Physical Therapist.
Another method is to use boards to add height to a step, to see how much higher you can place your limited foot above your good one, without tilting your pelvis. 1/2 this distance is crank length.
05-04-09, 01:45 PM
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TA still makes cranks down to 155mm, if that would work for you.
