38 votes
Accepted

What is a taco?

To taco a wheel means you've bent it so badly its a write-off and cannot be salvaged through truing. This is significantly worse than going out of true, because the rim will be creased or torn, ...
Criggie's user avatar
  • 124k
26 votes
Accepted

What are the risks associated with truing wheels without the aid of a truing stand?

A truing stand is a tool to speed-up the process. Using one does not stop the operator from doing it wrong. A good technique can work well enough using a finger pressing lightly on the rim and ...
Criggie's user avatar
  • 124k
17 votes
Accepted

When is a bike rim beyond repair?

Imagine a theoretical new bare rim made to perfect tolerances with perfect uniformity of materials and construction. Without spokes, it is perfectly round and flat. Add spokes and tension them all the ...
Nathan Knutson's user avatar
16 votes

When is a bike rim beyond repair?

One general consensus is that if your wheel has suffered damage enough to break three spokes in the same event then the rim may have suffered enough damaged to write it off. You should clean the rim, ...
Criggie's user avatar
  • 124k
14 votes
Accepted

Should an amateur attempt truing a wheel

If your question is, "Can an amateur successfully true a wheel on their first try?", the answer is "Yes". A quick search on the internet reveals plenty of videos explaining the process. Some things ...
Lachlan's user avatar
  • 358
11 votes
Accepted

Pinging sound on new radial front wheel

I think you have found the answer to your question, about the cause and meaning of the pinging. I would suggest however that to assert the wheel invariable needs re-truing (at that answer does) is ...
DavidW's user avatar
  • 5,188
11 votes
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Is there a difference between truing a bike wheel and balancing it?

balancing a wheel: making sure there's some weight symmetry trueing a wheel: making sure that the geometry of the wheel described a (near) perfect circle. This includes the radial and lateral ...
Rеnаud's user avatar
  • 20.3k
10 votes

Is this tire properly fitted on the rim?

It looks to me that your tire is not properly centered on the rim. Probably neither the rim nor the tire are faulty, but they require more effort to center the tire. The first thing you should check ...
mathieu van rijswick's user avatar
10 votes

Problems with spoke threads, and stressing the wheel

There is one major cause of this problem and it is putting a 1.8mm aka 15ga spoke in a 2.0mm/14ga nipple. This mismatch will screw together and hold under some tension, but then slip. It is easy to ...
Nathan Knutson's user avatar
10 votes
Accepted

How can I keep from rounding my spoke nuts?

The main thing going wrong is the wheel keeps breaking spokes and needing repeat attention. The life cycle of a wheel with a good initial build quality and good components is spokes virtually never ...
Nathan Knutson's user avatar
10 votes
Accepted

Should rear wheel be trued without cassette?

The rear wheel can be trued both with or without the cassette installed. When building a new wheel, the cassette will always be removed. Otherwise, you could not get the spokes into the hub. The ...
Burki's user avatar
  • 1,510
9 votes
Accepted

Is this tire properly fitted on the rim?

I'll answer all your questions in order. 1) "Will this tire wobble wear down the bearings faster, or other components?" -Nope, this wobble will do pretty much nothing to the rim. If anything, you ...
yollooool's user avatar
  • 1,033
9 votes
Accepted

How dangerous is a very out-of-true disc brake wheel?

Another danger of riding an out-of-true wheel is cornering. When on the straight, the wheel may be "round" while wobbling from side to side. But when leaning into a corner, the bike is no longer ...
Criggie's user avatar
  • 124k
8 votes

New Park Tool truing stand doesn't seem to be calibrated, calibration seems off out of box

The 2.2 is not for directly measuring dish, a shop will use a proper dish measuring tool(for time and repeatability) and there are techniques for the home gamer that lacks a dish tool that involve ...
Max Power's user avatar
  • 547
8 votes
Accepted

Danger of adjusting spokes on the road

Unfortunately there's not many aspects to truing wheels this question doesn't touch. Also unfortunately, figuring out what's going on with a given heavily used wheel with issues and then making it as ...
Nathan Knutson's user avatar
8 votes
Accepted

Freeing stiff nipples?

I agree with Daniel’s comment, I’ve had success with using vice grips to hold spokes myself. Be careful not to use excessive force to prevent crushing the spoke. It may help to add a small “flag” made ...
MaplePanda's user avatar
  • 15.6k
8 votes

Is it safe to ride on wheels with rusted spoke eyelets?

Yes, the rust is not a safety issue. It's fine. They're not replaceable in any kind of practical sense. Double eyelets or sockets such as those pictured are formed to match a specific distance between ...
Nathan Knutson's user avatar
8 votes
Accepted

Is a spoke tensiometer useful for determining that a wheel is on its way to becoming out-of-true?

There are several diagnostic uses I use a tensiometer for fairly regularly: One is to get a sense of how good the tension balance and tension level on a wheel is as a way of evaluating if it needs ...
Nathan Knutson's user avatar
8 votes
Accepted

Should I complain at the LBS about a new dead-on true wheel with unequal spoke tension?

You may well be worrying about nothing. A spoked bicycle wheel is a fantastically strong structure. Modern box-section rims and modern steel/stainless spokes are astonishingly reliable when compared ...
Noise's user avatar
  • 13.9k
7 votes
Accepted

How do I true a trailer wheel?

I would skip using the truing stand and just true the wheel on the trailer. You can generally clamp a strip of something to the frame to act as an indicator (have it stick out and just brush the rim, ...
Daniel R Hicks's user avatar
7 votes
Accepted

Is a factory-made wheel being 3.5 mm out of dish a problem?

Taking what you've said: you've been using it for years, it's probably fine left unaltered. How does it look in the fork? is that 3.5mm obvious? is the tyre closer to one side than the other? The ...
Noise's user avatar
  • 13.9k
6 votes
Accepted

How tell if spokes too tight without tensionometer

Roger Musson's book "Professional Guide to Wheel Building" simply states that: "The best place to start when judging the correct tension is to examine a similar wheel you know to be good and reliable ...
user1049697's user avatar
  • 4,218
6 votes

Danger of adjusting spokes on the road

For a normal wheel with 32 or more spokes and a metal rim, I'd say you are pretty safe. Even if one or two spokes ended up breaking, there is enough redundancy to avoid catastrophic failure. Myself I'...
jpa's user avatar
  • 1,857
6 votes
Accepted

Correct spoke tension for DT Swiss EX 471 26" 32h rim paired with Wheelsmith DB 14 spokes

I believe DT has a blanket recommendation of 1200Nm for all their rims, or 122 kg-f. You could email them to corroborate but that number should be safe. Use the tensiometer chart for the thin section ...
Nathan Knutson's user avatar
6 votes

Does bicycle rim wear affect wheel truing?

Wear will only vary around the circumference in rather odd cases, e.g. a significantly out of true wheel with brakes that don't self centre, damage, or local contamination reducing friction. The two ...
Chris H's user avatar
  • 59k
6 votes

Should I complain at the LBS about a new dead-on true wheel with unequal spoke tension?

As mentioned by @JoeK, how much you spent, and what you told the shop the wheel will be used for will play a big factor in deciding if the wheel is fit for purpose. If you told them it was a to keep a ...
mattnz's user avatar
  • 50.5k
5 votes

New Park Tool truing stand doesn't seem to be calibrated, calibration seems off out of box

The Park centering tool is just a symmetric piece of metal that fits into the truing stand. If you have a true wheel you can use that just as well. If you are concerned about the dish of the wheel, ...
itfuwub's user avatar
  • 374
5 votes
Accepted

What does the truing "release tension" step do?

This subject can be confusing to learn about because people use terminology to mean different things, and some of the physical techniques involved are working to help achieve a couple different goals ...
Nathan Knutson's user avatar
5 votes

Back wheel is "wobbling"

There are a few things that could be described as a 'wobbly' wheel. Hold the rear wheel off the ground, grab the tire at the 12 o'clock and 9 o'clock (from the chain side of the bike), try to move ...
Argenti Apparatus's user avatar
5 votes

When is a bike rim beyond repair?

First, make sure the rim doesn’t have any obvious damage. Check for cracks, especially along the brake surface, under the rim tape and around the spoke holes. If there is no damage then I’d try to ...
Michael's user avatar
  • 27.4k

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