Originally Posted by
Lt Stonez
XT M8000 1x11 10-42 or 2x11? Will you gain much more top speed with 2x11 contra 1x11? Am thinking of buying one of those for my sirrus/Roubaix flatbar but not shure who? Looking forword to hear more about your new flatbar road

The front is the Ultegra set-up that the bike came with, but now compact. The rear is the XT 8000, with the 10x42 cassette. First real ride tomorrow morning. I am sure I will lose ultimate top speed. But I am also sure that I will not spin out of gearing at a speed that I want to be riding on the flat. My Sirrus has front and rear XT, and I do not spin out with it.