If it isn't stiffness, what else..?
The size of bb shell may explain it. Cervelo's bbrigh is just bigger in every dimension.

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Cervelo R5 VWD 5637g/12.43lb
Cannyon Ultimate slx 5592g/12.33lb
Pronghorn XC SW Race 8284g/18.26lb

Have you had any issues with the kozak soul top cap? I'm about to order 1 but wanted to make sure that there weren't any issues with the first. Any issues with it fitting standard expander plugs?

It's absolutely fine, trouble free top cup.
Previously, it served me well on my mtb bike.

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Cervelo R5 VWD 5637g/12.43lb
Cannyon Ultimate slx 5592g/12.33lb
Pronghorn XC SW Race 8284g/18.26lb

New addition, 162g. I'm curious how my bottom will react after almost 3 years on 67g saddle

http://www.flickr.com/photos/90178027@N ... /lightbox/

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Cervelo R5 VWD 5637g/12.43lb
Cannyon Ultimate slx 5592g/12.33lb
Pronghorn XC SW Race 8284g/18.26lb

Hi Krzychu, fantastic bike, but I preffer your Canyon

What's wrong with Smud saddle? Wasn't comfortable for you?

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www.facebook.com/IronMonIKE
http://ironmonike.blogspot.com Nicholas and Monicas blog

Hi, Smud's saddle is/was absolutely fine. Although 67g is still kind of compromise, which was OK for me to accept over the quite long period I've been happily using it. Prologo is a consequence of this bike idea, durability, as much comfort as it's possible with the minimum weight. So in terms of the weight, 100g more or less it doesn't make any difference to me

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Cervelo R5 VWD 5637g/12.43lb
Cannyon Ultimate slx 5592g/12.33lb
Pronghorn XC SW Race 8284g/18.26lb

great looking bike, good weight too for a large frame.

may see you around surrey