Stiff is Just the Beginning

SL145

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 polished aluminum faceplate.

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 100mm to 130mm. /- 12.5 degree angle and 31.8mm clamp.

Weight (100mm) 135g
Sizes 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 39mm
“Fuori i muscoli!” by Alessandro Turci, Ciclismo  February 2009

The Italian magazine, Ciclismo, reviews Zipp's 808, SLC2, SL145, Tangente Tire, VumaQuad and 88/188 hub.

Download the PDF

The Racing Post  December 2008

It's a shame that I let the perception of the safety of carbon bars and stem keep me from purchasing them earlier. Now that I've ridden with them, I wish I had acquired them a long time ago.

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Stem Specs [pdf]  

Download a pdf of our stem specs from the 2009 Zipp Catalog.