New-Old-Stock Campagnolo Centaur Double Crankarm Set (175 mm)...Century Gray Finish
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Product Description:

Listing Update...I've been getting some questions concerning the vintage of the Centaur parts in this Century (anodized) gray finish. Based on shop catalog research, it appears the Century gray finish was introduced in 2004 and was still available through 2006.  As most folks probably already know, 2007 was the year Campagnolo began it's crankset migration to the Ultra Torque design and this also appears to signify the end of the Century gray finish.

This offering is for a new-old-stock Campagnolo (Campy) Centaur double crankarm set that is 175 mm in length and has a 135 mm bolt circle diameter (BCD). They are made from a forged aluminum alloy, so they should be fairly strong and their finish is a nice anodized gray. These crankarm sets were made during Campy's 10-speed era, but it's really their chainrings that determine drivetrain compatibility (so please see notes below concerning their drivetrain adaptability). Please also note the Centaur crankarms are the first (or entry-level) model that Campy considers among it's higher-end offerings. This is not to say the Centaur groupset is on par with Chorus or Record, because it's not...but Campy did see fit to equip the Centaur crankset with Ultra-Drive rings (as standard), which are generally reserved for Campy's better quality crankset offerings.

Other specs worth noting include the English threaded bolt-holes for 9/16" pedal spindles and the square-tapered holes for a bottom bracket with an ISO tapered spindle and a total (spindle) length of 111 mm. 

The other interesting specification that is probably not as widely known concerns the thickness of the chainring mounting arms. More specifically, because we noted 9-speed and 10-speed Ultra-Drive chainrings do not measure the same thickness at the bolt holes, we believed Campy deliberately maintained the same thickness of their higher-end crankarms...at the chainring mounting points...to allow for chainring variances to achieve the desired spacing for a 9-speed drivetrain vs. a 10-speed drivetrain. Sure enough, caliper measurements confirmed there is very little difference between higher-end Campy 9-speed and 10-speed crankarms (at these chainring mounting points). Additionally, we have been told the same holds true for Campy's higher-end 7/8-speed crankarms...meaning their thickness at the chainring mounting points is relatively consistent with the aforementioned 9/10-speed crankarms. Now this is not necessarily that big of a deal, as spacers are available to push chainrings farther apart to achieve appropriate spacing for nearly any drivetrain. As a result, even Ultra Drive 10-speed chainrings may be fitted to a 7/8/9-speed drivetrain with appropriate spacers inserted/installed to accommodate the wider chain that is generally used with these older drivetrains. Please also note when installing spacers, the most common practice on a double crankarm is to insert them between the large chainring and the crankarm.

As for condition, these crankarm sets were bulk-packed, so expect some light shopwear that appears more noticeable...probably due to the contrast between the anodized gray finish and the silver markings from scratches/scuffs. We believe their overall appearance is still nice, but upon close inspection we do note some light scratches/scuffs on most of these offerings. Listing Update...I only have one of these crankarm sets left in stock (in this size). I can also confirm we have begun updated the pictures to reflect this last crankarm set (and it's in fairly nice overall condition).

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