Jim Anderson
2010-06-09
FS: Dura-Ace 7900 (172.5 / 53x39) Crankset
$300.00
Slightly used for about 15 rides. No BB. Clean.
Chainrings: 39 x 53
Weight: 725 g. (with bb)
Dura Ace 7900 Bottom Bracket sold separately
The perfect platform for a crank intended to be used at the highest echelon
of competition. Combined with a hollow outer chainring the crankset is 20%
stiffer for optimal power transfer while still saving 15 grams. Other
changes include redesigned chainring teeth for better contact and power
transfer. Improved bottom bracket seals further reduce contamination and
friction.
http://bike.shimano.com/publish/content/global_cycle/en/us/index/products/ro
ad/di2.html#/site/product/detail/FC-7900