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Zipp SL 145 Stem





The SL145 stem is a perfect example of the determination that our engineers display when faced with a challenge. It requires 50 sections of hand-wrapped carbon cloth, titanium bolts sourced from the same Italian producer used by Ducati’s MotoGP racing program, and a stainless steel insert within the anodized blackface plate.

The SL145 was not easy to design and it’s not easy to produce. But the result is the stiffest, strongest all-carbon stem available – as verified by EFBe Laboratory. The SL145 is a rock-solid connection from bars to bike that weighs just 135g (100mm). It’s available in lengths from 80mm to 130mm. /- 12.5 degree angle and 31.8mm clamp.


Weight (100mm) 135g
Sizes 80,100, 110, 120, 130
Clamp Diameter 31.8mm
Angle +/- 12.5
Steer tube diameter 1 1/8 inch with 1 inch reducer shim
Stack height 40mm
Clamp width 47mm
Clamp torque 6Nm

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