In excellent condition, includes two ceramic bearing sets. Super light, very strong and lowest Q factor (146mm) on market. Chain rings are 53/39 and 9 or 10 speed compatible. BCD 110mm.

570 grams including bottom bracket. BB Thread -Italian (70), English (68), BB30 (compatible)

As reviews say:

Once again, Zipp has pushed the high performance envelope. The VumaQuad Carbon crankset sets new standards of efficiency while ruling the roost as the lightest crankset on the market. Every detail of this crankset sets new benchmarks. A revolutionary new bonding system encases 2 separate lugs in the carbon to produce arms that are 3 times stronger then previous models. The 4-arm x 110mm bolt circle fits BOTH standard 53 x 39 rings as well as compact 50 x 34 and the rings are at least 14% stiffer than any 5-arm x 130mm ring on the market!

The outboard bottom bracket bearings encircle Zipp's massive 30mm spindle, the largest and stiffest on the market. The bearings are Grade 2 Ceramic, the roundest and smoothest bearings available.

The result is a crankset that sets a whole new standard in performance - a full 33% stiffer than the next lightest crankset on the market, while exceeding the new 20% tougher 2007 CEN crankset fatigue test standards!