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09-07-2010, 02:44 PM | #1 |
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Join Date: May 2010
Location: Northern California
Posts: 765
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wheel 'trueness'
I am grading the wheels(19") that I have, and am wondering what defect is repairable and which is not. Bent spokes I can handle, if it spins like an egg, forget it, but what about 'wobble' the other direction(looking from the side)? So far, three out of twelve are keepers and need very little help. Is that about right percentage-wise, or am I being too 'picky'?
Thanks,Bruce. |
09-07-2010, 03:28 PM | #2 |
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Location: Santee, California
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Re: wheel 'trueness'
You may be too picky. You should be able to correct any wobble 1/4" or less. I say this from the experience I had with my 21" wheels. I used the heat shrink method of pulling it into alignment by heat shrinking the spokes.
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09-07-2010, 06:28 PM | #3 |
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Re: wheel 'trueness'
I find about the same ratio of 1 good wheel and 3 bad wheels as I find them at swap meets. Many of the wheels that aren't within 1/8" for runout and wobble can be fixed. Dave G. made a nice wheel straightener and lets guys use it. He also demonstrated how to heat shrink the stretched spoke by using a propane torch and wet rag. Dave reports very good success using this method.
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09-07-2010, 07:08 PM | #4 |
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Re: wheel 'trueness'
Thanks Tom. I can find a Dave B,C,D and H, but no G. Do you know what his 'handle' is?
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09-07-2010, 07:31 PM | #5 | |
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Location: Mpls, MN
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Re: wheel 'trueness'
Quote:
Dave is the last entry and has a link to his site. This is DAVE in MN. Dave lives just south of Jordan, MN. |
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09-07-2010, 08:45 PM | #6 | |
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Location: Reseda, Calif.
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Re: wheel 'trueness'
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Quote:
http://durableperformance.net/Do_it_...2.4.09.web.pdf |
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09-07-2010, 08:53 PM | #7 |
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Location: Wilmington, NC
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Re: wheel 'trueness'
Thanks. That was a great document to read. I may have to try that on some old wheels that I have.
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09-07-2010, 11:15 PM | #8 |
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Join Date: May 2010
Location: Santee, California
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Re: wheel 'trueness'
The document above was the reference I used when I did mine. Worked amazingly well.
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09-07-2010, 11:27 PM | #9 |
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Location: Calgary, Alberta, Canada
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Re: wheel 'trueness'
Dave's spoke heat shrink method works really well. It's just like truing a bicyle wheel which I had a lot of practice with being a mountain biker at one point. You have to take your time but you can easily move the rim in an 1/8" and often a bit more. Here are some pictures of my setup.
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09-08-2010, 12:16 AM | #10 |
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Location: Northern California
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Re: wheel 'trueness'
EXACTLY the information I was looking for. Very much appreciated! If anyone bumps into Dave/MN buy him a beer on my tab.
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09-06-2013, 12:46 PM | #11 |
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Join Date: Jun 2013
Location: KY
Posts: 81
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Re: wheel 'trueness'
Can you take a 1/4 " wobble out of a 21" rim by mechanical means rather than heat? I would rather not ruin the paint.
If heat is the only way, do you have to remove the tire and tube? |
09-06-2013, 10:15 PM | #12 | |
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Location: Eastern Tennessee
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Re: wheel 'trueness'
Quote:
To answer your questions, No ....and Yes . |
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09-07-2013, 09:48 AM | #13 |
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Location: Jordan, MN
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Re: wheel 'trueness'
I wrote the pictured article for a Club seminar and keep it on my website for others to study...but let's give credit where it is due...Brent Terry gave me the idea to use the spoke shrinking method. He is a proponent for using this process for a lot of other corrections also. Sheet metal, frames, wheels and only he knows what else.
Dave in MN www.durableperformance.net Look on the Do it Yourself page for the link...it works great...and yes you have to take the tire, tube and band off...because it gets pretty hot. |
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