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@provenrad
BB-7700/BB-7710
Are you that lazy to google it?!
Dura-Ace Track Crankset (FC-7710)This is from Shimano’s top of the range racing group set, designed for the track.
The hollowtech hollow forged aluminium crank arms and the octalink splined bottom bracket make this aluminium chain set lightweight and stiff.
Weight is specified at 587g with 170mm crank arms and a 46T chain ring.
The chain rings come in 3/32” and 1/8”, in combinations between 46T & 54T and are seated on a 144mm pcd.
The crank set has an excellent anodized finish which is complemented throughout the whole Dura Ace track group set, and it’s nice to see little details like the Shimano stamped chain ring bolts.
This crank set looks very capable of withstanding any aggression or abuse unleashed on it, even by an 87kg powerhouse.
The crank arms come in a variety of lengths, 165mm, 167.5mm, 170mm, 172.5mm and 175mm and fits onto octalink splined bottom bracket, unit BB-7700/BB-7710.
Note: Chain rings not supplied.