Skip to main content
12 votes

Why would spoke tensions be uneven, despite equal thread engagement?

I can think of a few causes related to the parts and material: Manufacturing tolerance of the spokes. They are not exactly equal length. Manufacturing tolernace of the nipples. I assume they are ...
Art Gertner's user avatar
  • 2,732
8 votes
Accepted

Can two consecutive spokes be connected on the same side of the hub flange?

No, never, not even in any of the more offbeat patterns I've ever seen. You'll need to take a step back and think through what's needed to correct the mistake. There is at least one other spoke out of ...
Nathan Knutson's user avatar
8 votes

Why are straightpull spokes not "interlaced"?

I think straight-pull spokes don't have a problem with negative loads the same way j-bend spokes do. For j-bend spokes, any push-force incurred by rim flex would force a non-interlaced spoke into ...
leftaroundabout's user avatar
6 votes

Analog of "pitch circle" for straight-pull hubs?

It's still pitch circle or flange diameter. (Flange diameter is the term used in some places, even though it's confusing and basically wrong. It's wrong because it's also the same term used to ...
Nathan Knutson's user avatar
6 votes
Accepted

Stability of home made wheel

I need a new wheel to support more weight (136kg combined for bike, freight and rider) Totally doable. I used to weigh 110 kg, and rode on a 20 kg e-bike. I could carry more than 6 kg cargo. The ...
juhist's user avatar
  • 19.1k
6 votes

Stability of home made wheel

The first question is whether it's a front or back wheel. Assuming the latter there's no reason to limit yourself to 32 spokes. I'd go for 36, and indeed have for similar loads (front and rear, but ...
Chris H's user avatar
  • 59.7k
6 votes

Is replacing single spokes by a different spoke type harmful?

Intuitively, it seems like different spokes might respond differently to identical tensions and cause a wheel to be more "volatile", so to speak. So, a wheel with straight-gauge spokes with ...
Andrew's user avatar
  • 958
5 votes
Accepted

Is replacing single spokes by a different spoke type harmful?

"Conventional" spoke is a term that can use more specificity. What matters for the purpose of having a wheel that you're less likely to be stranded with is whether it's built with a hub and ...
Nathan Knutson's user avatar
5 votes

20 inch wheels and spoke tension measurement tool

Personally I don't measure spoke tension with anything more complex than tapping the spoke with the spoke key, and squeezing adjacent pairs while de-stressing/relieving tension. I have built two 20&...
Criggie's user avatar
  • 125k
5 votes

Mavic Helium clincher wheels: Replacement Spokes

I think that the Helium was one of the first pre-built wheels. By now, it seems that most of the industry has moved to selling complete wheels, whereas in the day of the Helium, you'd probably talk to ...
Weiwen Ng's user avatar
  • 32.6k
5 votes

Why would spoke tensions be uneven, despite equal thread engagement?

Manufacturing tolerances is my best guess. The rim is not a perfect theoretical circle, its wall's thickness is not perfectly even all the way around, spoke holes are not drilled perfectly identical, ...
Robert's user avatar
  • 2,069
5 votes
Accepted

Correct way of centering rear wheel with differential spoke lengths

No, there are different sequences to get to the end result and they all work. Literally bringing the DS spokes to final/full tension first works badly in practice. The reason is that the tension on ...
Nathan Knutson's user avatar
4 votes
Accepted

Keep incorrect lacing (spoke heads in/out) or reseat spokes on hub flange?

For most hubs and situations, the answer to this is no, don't rebuild it if there are no issues occurring. "Double grooving" a hub shell creates a lot of unnecessary stress risers and they'...
Nathan Knutson's user avatar
4 votes

Wheel centred in frame but dished 8mm to non drive side, why is this happening?

Let's talk about the wheel alone first. If you measured the distance to the stack of coins to be 8mm, then the wheel is out of dish by 4mm, i.e 4mm away from the center line. In other words, you would ...
Robert's user avatar
  • 2,069
3 votes

Hub FTF and Offset

The offset can be positive or negative, depending on which flange is closer to the centre of the hub. In the formula you've quoted, a positive offset indicates that the right flange is closer to the ...
Will Vousden's user avatar
  • 3,981
3 votes

Mavic Helium clincher wheels: Replacement Spokes

With the old Helium, the rim is not so unusual in that there's a relatively standard nipple in a double eyelet. If you remove a spoke identical to the one you wish to replace, you can compare the ...
Noise's user avatar
  • 14.2k
3 votes

Help finding diameter for WTB ST i30

I am lacing an ST i30 TCS2.0 29" rim. I phoned WTB to confirm, and customer service asked what model I had; TCS or TCS2.0. I have the TCS2.0 version, and he stated that according to his ...
woofer2609's user avatar
2 votes
Accepted

Transitioning old bike to be indoor and stationary

Your bike appears to have a solid axle with acorn-style wheel nuts on the rear. The trainer you've linked seems to come with its own QR skewer, which is intended to fit into the trainer's retention ...
Criggie's user avatar
  • 125k
2 votes

Looking to understand the math behind spoke length calculation. Help?

Not giving the mathematics, just what I think are the required steps and using previous answered illustrations. 1st step. Calculate the spoke length facing the wheel from the side, so I would think ...
MindDBike's user avatar
  • 616
2 votes

20 inch wheels and spoke tension measurement tool

It's a challenge. Most tensiometers are bad about it. If what you're working with or building is on the ebike or street/dirt/park side of things, most of those rims are constrained by your ability to ...
Nathan Knutson's user avatar
2 votes

Is replacing single spokes by a different spoke type harmful?

Since all spokes are made from only one type of material (steel), the only thing that matters here is cross section. A steel wire with a certain cross section has a certain spring constant. If you ...
juhist's user avatar
  • 19.1k
1 vote

Analog of "pitch circle" for straight-pull hubs?

Thanks to the pointer to DT Swiss given by Nathan Knutson, I found what I was looking for. Drawing in their spoke calculator, screenshotted below, shows the additional parameter which straightpull ...
Konstantin Shemyak's user avatar

Only top scored, non community-wiki answers of a minimum length are eligible