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What are double butted spokes?

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Drosentreter

I live for the CABE
Maybe this is a dumb question, but what are double butted spokes and what’s the difference between them and other spokes? Is it like brake lines where the double flair is stronger than the single flair?(the double is the only legal flair in the US for that reason)
 
Here ya go....
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FAQ: Are Double-butted Spokes Stronger?

The two main terms describing the strength and durability of a material are its ultimate tensile strength and modulus of elasticity.

The Ultimate Tensile Strength shows how much force a material can withstand before breaking.

The Modus of Elasticity indicates how much force a material can withstand before deforming.

If the ultimate tensile strength and the modus of elasticity of the materials used for the production of straight gauge and double-butted spokes are identical or close to each other, straight gauge spokes will be stronger thanks to their greater cross-sectional area.


For example, a 1.8mm double-butted spoke is 19% thinner than a 2mm straight gauge one.

All things being equal, a thicker spoke is a stronger one.

The more aggressive the butting, the greater the strength discrepancy becomes.

However, there’s a catch.

Spokes rarely if ever break in the middle. In most cases, the failure occurs near the ends (the J-bend is the most likely to snap) unless there’s external damage.

And since double-butted spokes are known to mitigate some of the stress by flexing, they may end up being more durable in the long term and thus appear stronger while actually being weaker when it comes to total loading.

Or in simpler terms, straight gauge spokes offer the highest possible strength whereas double-butted spokes have an edge when it comes to longevity.

Summary: What You Need To Know

  1. Straight gauge wheels are stiffer laterally and can sustain more total stress than double-butted models. This makes them better for heavier individuals, heavily loaded bikes and bike disciplines involving contact and rotations (e.g., freeriding, BMX, dirt jumping).
2. The downsides of straight gauge spokes are that they’re heavier, do not flex a lot and thus the ends fatigue faster.

3. Double-butted spokes make for a more compliant wheel and mitigate some of the stress by spreading it across neighboring spokes.

4. Double-butted spokes are lighter, arguably more durable and more aerodynamic as well.

5. Straight gauge spokes are better suited for budget builds whereas double-butted spokes are more performance-oriented.
 

FAQ: Are Double-butted Spokes Stronger?

The two main terms describing the strength and durability of a material are its ultimate tensile strength and modulus of elasticity.

The Ultimate Tensile Strength shows how much force a material can withstand before breaking.

The Modus of Elasticity indicates how much force a material can withstand before deforming.

If the ultimate tensile strength and the modus of elasticity of the materials used for the production of straight gauge and double-butted spokes are identical or close to each other, straight gauge spokes will be stronger thanks to their greater cross-sectional area.


For example, a 1.8mm double-butted spoke is 19% thinner than a 2mm straight gauge one.

All things being equal, a thicker spoke is a stronger one.

The more aggressive the butting, the greater the strength discrepancy becomes.

However, there’s a catch.

Spokes rarely if ever break in the middle. In most cases, the failure occurs near the ends (the J-bend is the most likely to snap) unless there’s external damage.

And since double-butted spokes are known to mitigate some of the stress by flexing, they may end up being more durable in the long term and thus appear stronger while actually being weaker when it comes to total loading.

Or in simpler terms, straight gauge spokes offer the highest possible strength whereas double-butted spokes have an edge when it comes to longevity.

Summary: What You Need To Know

  1. Straight gauge wheels are stiffer laterally and can sustain more total stress than double-butted models. This makes them better for heavier individuals, heavily loaded bikes and bike disciplines involving contact and rotations (e.g., freeriding, BMX, dirt jumping).
2. The downsides of straight gauge spokes are that they’re heavier, do not flex a lot and thus the ends fatigue faster.

3. Double-butted spokes make for a more compliant wheel and mitigate some of the stress by spreading it across neighboring spokes.

4. Double-butted spokes are lighter, arguably more durable and more aerodynamic as well.

5. Straight gauge spokes are better suited for budget builds whereas double-butted spokes are more performance-oriented.
Just the answer I was looking for!!!!! Thank you!!!!!
 
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