The written limit is 20 kg. The real limit is whether you can lift your own case onto a rack above your head while the train waits for nobody.

Nobody weighs your bag. Security checks the contents, not the mass. A 26-inch case and a carry-on will pass without comment. A surfboard will not.
Storage: overhead racks sized for cabin bags, plus a luggage rack at the end of each carriage for large cases. There is no assistance and no lift. If you cannot lift your case to shoulder height, book first class (wider aisles) or travel with someone who can.
| Item | Rule |
|---|---|
| Power banks | Allowed up to 100 Wh (a 20,000 mAh bank is ~74 Wh). Must be labelled. |
| Aerosols | Up to 150 ml, and the container must be labelled. |
| Lighters, matches | Prohibited on high-speed trains. |
| Alcohol | Up to 2 bottles (1 L) sealed, 24–70% ABV. |
| Knives | Anything with a locking blade is confiscated. |
| Drone | Allowed on the train, but heavily restricted at attractions. |
One case you can lift and one backpack you can put under the seat. If your itinerary has four rail legs, a large hard case becomes a daily liability — every station involves stairs, escalators and a crowd. This is the single strongest argument for packing lighter than you think you need.
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