I recently debated between Di2 and mechanical. I ended up with mechanical since it was more affordable for me. Also I’m not an electronic kinda guy anyway. I’ve tried it and it’s nice but I don’t want a bike I need to plug in.
to each their own. The Roubaix is a great bike. You can’t go wrong with either model. Warning: You will love the Future and After shock and will probably not ride your other bikes for any distance over 15 miles.