Technical & Reference Section > Tech and Restoration

Chainring Top Hats

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pickle:
Ti softer?  i thought it was one of the hardest metals about?  ???

Dannywhac:
Yep - didn't really explain meself very well there....

The chromolly arms/spline are heat treated so hard as fook, Ti although it has really good strength and fatigue/elongation properties (better than steel) has a lower specific elasticity (it's more bendy than chromo/steel for a given weight of material) = bad combo mix on your gearing if your using a steel splined sprocket on a Ti axle cos all the force on the splined sprocket is concentrated in a thinner area than the large splined area of the crank arms.

Is that making more sense? Not explaining very well......  :D

oldtired:
  :daumenhoch: makes sense to me ,  was thinking the same thing ,  will stick to a bolted one i think

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