Which transverse handlebars for 156?

Hi, I’m ordering crossbars. However, there would be a small consultation. I found several offers in the internet at the car share shop, among others from Mapco. I see however once a queler handlebar as such a smaller triangle for about 50€ where is located at the top left. 49027 handlebars, wheel suspension from MAPCO Features Installation location: top left, handlebar type: crossbar, material: aluminum Below is also one that is longer and costs about 70€ and with which is not standing at the top left or at the bottom left but only left: 49028 handlebars, wheel suspension by MAPCO Features Installation location: front axle left, handlebar type: crossbars What’s the difference? mfg