Dura ace BB-7700 vs. BB-7710
Which is the better BB?
I have recently bought a used Track SRM and want to fit Dura Ace Track BB's to both my bikes so I can swap it between the two.
The first bike is a Planet X Track frameset I've just had delivered and about to build up. I plan on using this bike indoors only and primarily for my A races such as States and Nationals, so I'll wire it up to have the PCV under the seat to keep the commissaires happy.
My existing bike is a 2008 Fuji Track pro, which I plan now on relegating to club racing outdoors and for training duty indoors and out. I'll wire it up to have the PCV on the bars.
Given I have already bought one of each BB model, which should I fit to the Planet X leaving the other for the Fuji. Noting also that I am a 75kg Enduro rider in case that sways the decision?