Any way to tell crank alignment?
markhewitt1978
Posts: 7,614
I've fitted a Stages power meter and it's fine except that every ride I've done since I've ended up with what feels like a slightly pulled muscle in my lower back left hand side.
I was wondering if perhaps the cranks may be marginally out of alignment.
Is there any way to tell, other than by eye? It looks ok but want to rule out issues with it.
I was wondering if perhaps the cranks may be marginally out of alignment.
Is there any way to tell, other than by eye? It looks ok but want to rule out issues with it.
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Comments
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You are not pressing down on the left crank more due to your new meter - maybe subconsciously?0
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You are not pressing down on the left crank more due to your new meter - maybe subconsciously?
That's quite possible! Like I said I just wanted some way to verify that my install is correct.0 -
As far as i'm aware it's only by eye and I think even if you put it slightly out it would be obvious to your eye.0
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Providing the bb is installed correctly it's not possible to fit the crankset misaligned.0
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Providing the bb is installed correctly it's not possible to fit the crankset misaligned.
How is that? When I had the crank off it looked like I could put it back any old place I wanted?0 -
Maybe your cranks are special but most you can't get wrong now.Providing the bb is installed correctly it's not possible to fit the crankset misaligned.
How is that? When I had the crank off it looked like I could put it back any old place I wanted?
Some BMX multi spline ones you could. And the old square tapers you could get 90degrees out but can't think of any others that allow this as they have a different spline. Like your cassette."Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
6800 chainset. What actually stops me putting it on wrong?
Edit: different spline? Good to know. The reassurance I need!0 -
There is a big fat spline under the split in the ND crank.6800 chainset. What actually stops me putting it on wrong?
Edit: different spline? Good to know. The reassurance I need!"Do not follow where the path may lead, Go instead where there is no path, and Leave a Trail."
Parktools :?:SheldonBrown0 -
Your cleats are out of alignment, your seat is crooked or you have a functional misalignment yourself.
If it is a stages, have you got the right cranklength to match your chainset?0 -
Your cleats are out of alignment, your seat is crooked or you have a functional misalignment yourself.
But none of those things have changed between fitting the power meter.If it is a stages, have you got the right cranklength to match your chainset?
Yes, was 165 replaced with 165, and measured it.0 -
Looking at my bike I'm not entirely confident the wheel is aligned right.
The weekend before last the LBS changed my headset and the wheel looks like it's pointing to the left ever so slightly which would explain left back muscle strain.
Is there any way to measure that or just by eye?0 -
Is the wheel in the dropouts correctly? Loosen the quick release and make sure the wheel is in the dropsouts fully before tightening.0
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Looking at my bike I'm not entirely confident the wheel is aligned right.
The weekend before last the LBS changed my headset and the wheel looks like it's pointing to the left ever so slightly which would explain left back muscle strain.
Is there any way to measure that or just by eye?
Haha, you sound paranoid now!
It's entirely possible that the stem isn't fixed quite straight and I guess if you're having to extend your reach with your left arm to get to the bars then it could explain the niggle.
As far as I know, there's no hard and fast way to measure it. I always just do it by eye and then end up paranoid and fiddle with it after every ride until something else distracts me from it a few weeks down the line.0
