I have narrowed down my search for a road bike to 2 bikes, one is a 2014 merida scultura carbon frame, 10 speed ultegra gearshifters at R15000 and the second one is a 2015 Merida aluminium frame, 105 gearshifters, 11speed R14000. Which one would you advise me to buy? I have been riding a mountain bike for 6months and never rode a road bike before.