Compatibility of tyres with wheelset
Per the technical specifications page for your bicycle:


  MAXIMUM TYRE DIMENSION (ETRTO)   70 mm


70 mm is 2.75 inches, so a 2.60 tyre should fit.

Tyre sizes are notoriously imprecise, but a 2.60 should be significantly smaller than a 2.75.

You can be as certain as you can be that it will fit, especially as you're sticking with not only the same manufacturer but the same model.

The impact of a larger tyre?  A "softer" ride - you'll be better able to absorb bumps and roll over smaller obstacles, at the likely cost of some precision in control and perhaps a slightly increased rolling resistance.