Originally Posted by
rsbob
Have thought, with no direct proof, that the increased size of the wheels, cage and additional chain would create more aero drag, thus negating the marginal gain.
Then you get to spend even more money for the additional blingy aero fairing. And for yet
another paltry $200, you can get a "UFO Factory optimized" 12 speed chain.
https://ceramicspeed.com/products/os...mano-9250-8150