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 Post subject: How true is true
PostPosted: Thu Mar 17, 2016 10:38 pm 
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Joined: Sun Mar 06, 2016 2:41 pm
Posts: 1
Hi, just got a pair of China wheels and as I was checking their trueness I realised that I have no idea how true they should be. Can you take a look at my videos below and estimate if it's bad or OK.

https://youtu.be/dOUhVKXh4gs - front radial
https://youtu.be/8gFR8JhhxR4 - rear radial
https://youtu.be/vM0amGGpuGQ - rear lateral right, horribly filmed
https://youtu.be/KQYTu-T7jRU - rear lateral left.

What do you think?

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 Post subject: Re: How true is true
PostPosted: Fri Mar 18, 2016 12:40 pm 
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in the industry

Joined: Sat May 12, 2012 7:25 pm
Posts: 2510
Location: Glermsford, Suffolk U.K
stick it in a truing jig and observe that way. better still one with dial guages and measure. Wobble can often look worse than it actually is when just spinning the wheel.

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 Post subject: Re: How true is true
PostPosted: Fri Mar 18, 2016 1:09 pm 
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Joined: Sun Mar 02, 2014 6:36 pm
Posts: 310
Location: NY USA
bm0p700f, I'm guessing you didn't click on the video links.

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Trek Madone 7.9 58cm 14.9lbs


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 Post subject: Re: How true is true
PostPosted: Fri Mar 18, 2016 1:55 pm 
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Joined: Mon Feb 19, 2007 3:44 am
Posts: 2015
Location: Canada
Doesn't look very good IMO.

You should take off the tires before checking the wheels though.
Also very important, the spokes tension should be even.


Louis :)


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 Post subject: Re: How true is true
PostPosted: Fri Mar 18, 2016 2:42 pm 
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Joined: Wed Jan 22, 2014 11:48 am
Posts: 1308
Just clicked on the 1st video, the tire isn't seated properly or has a hop, can be seen if you look at the sidewall near the brake track.


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 Post subject: Re: How true is true
PostPosted: Wed Mar 30, 2016 11:59 am 
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Joined: Mon Jul 07, 2014 8:15 am
Posts: 1067
Location: NorthEU
slippy wrote:
Hi, just got a pair of China wheels and as I was checking their trueness I realised that I have no idea how true they should be. Can you take a look at my videos below and estimate if it's bad or OK.

https://youtu.be/dOUhVKXh4gs - front radial
https://youtu.be/8gFR8JhhxR4 - rear radial
https://youtu.be/vM0amGGpuGQ - rear lateral right, horribly filmed
https://youtu.be/KQYTu-T7jRU - rear lateral left.

What do you think?

Sent from my SM-A300FU using Tapatalk


I've seen very expensive wheels (new) worse than this.

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 Post subject: Re: How true is true
PostPosted: Thu Mar 31, 2016 5:37 pm 
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Joined: Tue Aug 12, 2014 3:50 pm
Posts: 650
Location: FIN
I've seen way cheaper and perfectly true out from the box... . Those are not. Should see someone who will equalize tension and true it.

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I can be wrong, and have plenty of examples for that ;)


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 Post subject: Re: How true is true
PostPosted: Thu Apr 14, 2016 2:57 am 
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Joined: Mon Apr 04, 2016 2:09 am
Posts: 30
Marin wrote:
Just clicked on the 1st video, the tire isn't seated properly or has a hop, can be seen if you look at the sidewall near the brake track.


Good observation. The rim may not be out of true radially, as the tire is not centered correctly.

I made the mistake myself not to have my cheap carbons trued up first, then mount a tire. Well next time.


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