I don't remember the brand that comes on a Motobecane fat tire bike, but I do know that it would take some extreme wear on the pads to even notice a slight difference in the lever travel. If you've adjusted the clearance on the pads properly, then the only thing it can be is air in the line or a low reservoir. Bleed them. Some great Utube vids on how to service and adjust them you might want to check out, maybe snuggled up to the nanny with a bowl of popcorn after you put the kid to bed. Good luck,