I have a 2016 Haibike sduro Cross SL. I love riding it, but even with a grade, it is geared so low that I can't pedal any faster than about 29 mph. I would like to put a 2 x 10 front derailleur and second chain ring on it. Do you know where I can find what parts I need? I also have a 2017 Xduro 6.5 that is 2 x 10 already. Would my SL use the same derailleur and chainring? Would I need to change the hub?