I can't lace and true the new rim and spokes I bought.
Could it be that the original drum brake that I matched to it is warped? And that's why I don't succeed?
Edit:
On the one hand, it is the beefy ribbed drum type, but on the other hand, it has been working hard and in hot conditions for 70 years...
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Wheel truing problem
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jwonder
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Re: Wheel lacing problem
The Barrington book has a great writeup on this, and if you have a wheel to copy form that helps greatly as well.
On the R 51/3 it should be very straightforward, I have done 3 of them and it was not a horrible problem. The trick is getting it started right and then making sure you have the over/under spokes correct.
Post pictures and maybe we can help more.
On the R 51/3 it should be very straightforward, I have done 3 of them and it was not a horrible problem. The trick is getting it started right and then making sure you have the over/under spokes correct.
Post pictures and maybe we can help more.
James Wonder
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York
Vice President, Vintage BMW Motorcycle Owners
2022 BMW Friend Of the Marque
Long Island, New York
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Micha
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Re: Wheel lacing problem
Evening James,
Do you want me to picture the spokes pattern?
Well they are correct. This is a spare wheel I have and the pattern matches the wheels I have now on my bike.
If you mean for me to photograph something else in the wheel - please update and I will try to upload quality pictures.
I will be there tomorrow and take them.
Thanks for your help
(If I'm at a dead end, I'll have no choice but to take the wheel/spokes apart and check the drum itself for trueness, a move I obviously try to avoid
. A lot of work...)
Do you want me to picture the spokes pattern?
Well they are correct. This is a spare wheel I have and the pattern matches the wheels I have now on my bike.
If you mean for me to photograph something else in the wheel - please update and I will try to upload quality pictures.
I will be there tomorrow and take them.
Thanks for your help
(If I'm at a dead end, I'll have no choice but to take the wheel/spokes apart and check the drum itself for trueness, a move I obviously try to avoid
. A lot of work...)Michael Steinmann
R51/3 1952
Engine Nr. 529466
R51/3 1952
Engine Nr. 529466
Re: Wheel lacing problem
What exactly is the problem? And why do you think it is the hub? Usually it is the rim that is problematic.
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Jim D 5112
- Posts: 200
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Re: Wheel lacing problem
Are you having a problem lacing the wheel or truing it after it is laced. They are two different operations. You must first have it laced properly before you can begin to true it.
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Micha
- Posts: 768
- Joined: Fri Oct 12, 2007 2:24 am
- Location: Israel
- Has thanked: 11 times
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Re: Wheel lacing problem
I apologize for the lack of clarity in my question and will try to rephrase:
I loosened and retightened the spokes 5 times because I could not true it. Balancing a simple wheel like this is not rocket science (done it before on my BSA M20 with outfit, 3 wheels). Although you need to know what you are doing, it is not too complicated. I manage to balance it in the up and down scale, but not in its side to side play. Since the rim is new and so are the spokes and nipples, I'm starting to think about the drum, which as I said is the original one. Heavy and beefy but it is still a 70-year-old part (on my BSA M20 I also had a new brake drum).
Thank you all again for your help, every input will be great because it is no longer possible to find someone here in Israel who knows the art of wheel balancing.
I loosened and retightened the spokes 5 times because I could not true it. Balancing a simple wheel like this is not rocket science (done it before on my BSA M20 with outfit, 3 wheels). Although you need to know what you are doing, it is not too complicated. I manage to balance it in the up and down scale, but not in its side to side play. Since the rim is new and so are the spokes and nipples, I'm starting to think about the drum, which as I said is the original one. Heavy and beefy but it is still a 70-year-old part (on my BSA M20 I also had a new brake drum).
Thank you all again for your help, every input will be great because it is no longer possible to find someone here in Israel who knows the art of wheel balancing.
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Michael Steinmann
R51/3 1952
Engine Nr. 529466
R51/3 1952
Engine Nr. 529466
Re: Wheel truing problem
New is rarely better. Last year I rebuild my R 25 wheels with one old and one new rim. The old one was a doddle. Very easy to true. The new one was much harder.
Where do you have problems? Around the weld you will never get it true. There will always be a hump. And maybe you are too hard on yourself? Everything within a mm or so is fine. I don’t remember exactly but it certainly wasn’t perfect. No problem while riding.
Where do you have problems? Around the weld you will never get it true. There will always be a hump. And maybe you are too hard on yourself? Everything within a mm or so is fine. I don’t remember exactly but it certainly wasn’t perfect. No problem while riding.
