Like Glepore said the one provided are fine.
I have decided to size up from 110cm back to 120cm and will be trying out another bar instead
the bars provided are actually the one thing that, in the case of my kid's bike at least, had a couple of slight differences from the actual Rapide cockpit. the first and obvious difference being the lack of dimples on the bar top but the more noticeable difference (to me) was the drops of the bars have a slightly altered bend.
there's a slight gradual slope to the end caps on the Tan Tan bar vs what feels to be a more flat section on the Rapide. visually it's very minimal from a distance and you can only really notice it when the bikes are side by side, or in my case, muscle memory from chewing the stem on the real thing.
p.s. i had no problem with the transition cap rubbing on my kid's frame. it definitely a snug fit between the back of it and the top of the top tube but had no rub. not sure if we got lucky of if they had made some manufacturing adjustments? it's an easy fix regardless.