Like New Zipp 300 Carbon Crank 175mm with FSA Platinum Pro TI MegaQuad
Bottom Bracket.

This crank is in like new condition, it has been used twice. I need 172.5's

$575.00 + shipping

Thanks,

Tim

..

Specs

1.. 175mm arms,
2.. 53/39 chainrings
3.. Chainwheel listed at 420 grams with chainrings and hardware (as listed
on the case) WeightWeenies listed at 471 grams
4.. 144m Q Factor
5.. Includes FSA Titanium Bottom bracket for a 68mm english shell. Listed
at 189 grams on WeightWeenies
6.. This is the lightest crank on the market. The total listed weights
would be 660 grams, complete. Significantly lighter than Dura Ace or Campy
7.. The heart of the Zipp 300 crankset is a revolutionary bonding process
which allows the carbon fiber to bond to the aluminum with a strength
similar to that which it bonds to itself. This process is so specialized and
sensitive that it is thus far available only in the US, and only from 3
aerospace suppliers. While certainly not inexpensive, this process does
increase bond strength by more than 3X when compared to traditionally
employed methods, meaning that the Zipp crank can utilize two intricately
forged and machined aluminum lugs only where they are needed and does not
require a heavy internal aluminum spine to hold the crank together. This
bonding process allows the Zipp 300 to use more than 200 grams less aluminum
than other designs, allowing designers to utilize nearly 80 grams of
additional carbon fiber in order to increase strength and stiffness
resulting in a crank that is truly supreme in terms of stiffness and
durability.

Searching for an alloy that is as strong as 7074, but with significantly
higher fatigue properties, Zipp discovered 2XXX aluminum from Alcoa. This
aluminum was developed as a replacement for 2024 in military aircraft, and
allows for the further removal of weight do to its significantly higher
fatigue strength. In fact, Zipp 300 cranksets have achieved more than 3.5
million cycles at 1500N (300 lbs) without a crack initiation or failure in
the bondline.
8.. Product reviews:
Cyclingnews.com August 2006
Pezcyclingnews.com April 2006