Originally Posted by
bike_boy
I guess your saying you do not have an external threaded BB.
Isn't a Quarq pm mounted in spider of crank?
I have an external threaded BB on the current bike, but might not on the new one. And yes, the Quarq unit is mounted in the spider.
I have a 2011 Trek Madone w/BB90. I had my SRAM RED Compact Crank (BCD 110) from my old bike (which used a GXP external BB) re-installed to the Madone using required a BB90 BB kit. I chose the Enduro one with hybrid ceramic bearings.
This is good to hear, as it is exactly what I'm considering. I have a SRAM RED S975 (S975=Quarq) GXP standard crank on my bike, and one of the bikes I'm considering is the Madone. I had heard of the Enduro adapters, as Cervelo also references them (for their BBright BB). I just haven't been able to find the right one online. I'm trying to make sure there are no surprises when I pull the N+1 trigger, and want to be knowledgeable before I even start talking to the LBS. I'm currently considering the Madone, the Tarmac, and Cervelo Rx, and I'm fortunate that we have an LBS carrying all three, and that LBS has a relationship (spelled d-i-s-c-o-u-n-t) with my coach.