rogster

For one, i didn't know that the Mach 2 weighs the same as dura-ace caliper.

https://www.bikesportmichigan.com/rev...veloDual.shtml

Here’s why: The Cervelo labeled “Mach 2” brakes used on the Cervelo Dual weigh 154 grams, the exact same weight for a Shimano Dura-Ace brake caliper. The brakes on the Dual weigh the same as Dura-Ace- to the gram. As for function, the brakes on the Cervelo Dual are actually a better choice than Shimano Dura-Ace on this bike. The Dura-Ace caliper is designed to work with the Shimano Dual Control SLR STI brake lever. That brake lever/shifter has a powerful return spring since it is a full size road brake lever and not an aerodynamic, lightweight brake lever. The Cervelo Mach 2 brake has a friction reducing spring bushing plate and a powerful return spring that works perfectly with the lightweight, spring-less Dia-Compe 188 brake levers. If you really take the time to actually look at the Cervelo Mach 2 brake you will learn it is actually a better choice than the Shimano calipers on this bike.

cjbruin

I wouldn't be surprised at all if this were true. I have them on my P2SL and I've never had a complaint. My LBS has a box full of them because people buy Cervelos and swap out the brakes without ever trying them. I have DA brakes on my roadie and I like them as well but I don't think there's anything wrong with the Mach 2's.