Originally Posted by
strotter13
Hi,
I am new to this forum, and I am sorry if this is posted in the wrong place. I have a 2012 Trek 1.1. I am a runner at heart, but I use my bike to xtrain, and I ride it to work and various other places. I just purchased a Dura Ace 7701 Crankset, used, hoping that it will make the topspeed of my bike faster. I think the crank uses an octalink bottom bracket (im not positive), and I am curious what kind of bottom bracket I need to buy, that will fit my bike and this crank. Thanks for any help.
Does your bike still have the Vuelta Corsa crankset? If so everything I see on google points to it using a standard square taper bb. Which means the bb shell is most likely a standard 68mm english thread. Which means for your DA-7701 crankset you need an octalink v1 bb like the bb-6500 (ultegra) or bb-5500 (105). Stay away from the bb-7700 (Dura-Ace) since it is not a sealed type it will need maintenance.
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2014 Cannondale SuperSix EVO 2
2019 Salsa Warbird