Grom 2025 vs Z400 2023

If straight-line speed is your priority, the Z400 takes the lead. With 35 HP more than the Grom, it offers a more spirited ride that will be noticeable on highway overtakes or track days. When it comes to agility, the Grom has a clear advantage. Weighing in 65kg less than the Z400, it will feel significantly easier to handle in low-speed traffic, parking maneuvers, and twisty corners. Riders with a shorter inseam should lean towards the Grom. Its seat height is 24mm lower than the Z400, making it much easier to flat-foot at stoplights and increasing confidence during stops. Bottom Line: While both are capable, the z400 offers a superior power-to-weight ratio, making it the more exciting machine for experienced riders.