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Posted

Zipp VumaQuad crankset

Zipp shatters even its own benchmarks with the introduction of the new VumaQuad crankset. Actual weight on the complete assembly (ceramic bearing bottom bracket cups, 34/50T chainrings, hardware, and all) is just 560g, which betters the Zipp 300 crankset and 175 bottom bracket combo by almost 90g, Shimano Dura-Ace by almost 200g, and the newest Campagnolo Record Ultra-Torque by about 230g. Yikes.

Even so, Zipp claims a 33% stiffness advantage over its next-lightest competitor (and we're talking absolute values here, folks, not stiffness-to-weight ratio) courtesy of its carefully engineered carbon fiber design, 30mm-diameter aluminum spindle, and four-arm proprietary chainrings complete with hidden fourth-arm. Stance width is a slim 146mm.

All of this technology obviously comes at a hefty price, though, but based on our prior experience with the VumaQuad's predecessor we expect some high performance to go with it.

Price: US$1200 (complete crankset and bottom bracket with ceramic bearing upgrade)

http://www.cyclingnews.com/photos/2008/tech/newarrivals/01-31/Zipp_VumaQuad_full_set.jpg

 

 

 

taken from: cycling news.com

 

I wonder if this will trickel down to SRAM?

 
Posted

I agree, probably too expensive for even the most hardcore poser or weight weeny. I would suspect that there is a fourth bolt concealed behind the crank arm.

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