Pillar TB-2015 triple-butted spokes are: 2.0mm|1.5mm|2.0mm.
They are thickest at the elbow and at the threaded section – where failures often occur. They are thinner in areas of lower stress.
This butting allows for maximum strength but lower overall weight.
Breaking Strength: 250 kgf
Fatigue: (180kgf , 10Hz): 150,000 Cycles
These spokes can be used with Alloy or Brass external nipples, or with internal alloy nipples or even special locking internal alloy nipples.
Upgrade your external nipples with Taper Grip (Alloy or Brass nipples), for added security.
For added strength, consider M-Power …or go all in and add BOTH!
You can choose to add a little security by adding washers: internal nipples on alloy rims, for internal nipples on carbon rims, or for external nipples on alloy or carbon rims.
Just add 1mm to your calculated spokes lengths.