Does the RegioSwinger (Class 612) make you motion sick?
The RegioSwinger took full-size tilt to slow, winding country lines, which makes it a different proposition from a Pendolino: up to 8 degrees of lean, deployed not on a fast mainline but on the twisting regional routes where curves come continuously. Germany still runs them on unelectrified hill lines, and for two decades Croatia's Zagreb to Split ICN made the class famous with tourists crossing the Dinaric mountains.
Germany, formerly Croatia · Tilting DMU, up to 8 degrees
Status, September 2026
Route change, September 2026: the Zagreb to Split ICN's final RegioSwinger run was reported in August 2026 by a dated enthusiast account; Croatian Railways service on the route continues with other stock. Treat the Croatian chapter as closed.
Key facts
- The RegioSwinger is a tilting DMU with a maximum tilt of 8 degrees, introduced on Croatia's Zagreb to Split ICN in 2004.
- The final Zagreb to Split ICN RegioSwinger run was reported in August 2026.
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Why the RegioSwinger (Class 612) feels the way it does
Tilt: Active
A tilting diesel multiple unit with up to 8 degrees of tilt, built to speed up winding, unelectrified regional lines.
On a mainline, tilt fires through a curve and rests on the straights. On the winding lines the Class 612 was built for, there is barely a straight: the tilt works near-constantly, and the motion dose per hour is high even though the speeds are modest. That is exactly the environment where riders report tilt fatigue, an accumulating queasiness rather than a single bad moment. The Croatian ICN run to Split compressed the effect into a five-hour mountain crossing, which is why it shows up in travel forums far more than most regional German diagrams.
Where it runs
- Deutsche Bahnfast regional services on curving unelectrified lines
- Hrvatske Zeljeznice (Croatian Railways)Zagreb to Split ICN from 2004; final RegioSwinger ICN run reported in August 2026
What the research says about tilting trains
Tilting-train motion sickness has a real, peer-reviewed literature: studies report more sickness on tilting than on comparable non-tilting trains, and point at carriage roll, the level of tilt compensation and the timing of each tilt against the curve as the variables that matter.
Riding the RegioSwinger (Class 612)? Set it up first
Stop Motion Sickness Now
A winding line is a bad place to go looking for an app. Put it on your phone before you board: Dizzout is a drug-free app that plays precisely calibrated audio through any headphones you already own, wired or Bluetooth, with relief in about 90 seconds. Free to try.
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What helps on board
- On lines where the 612 tilts near-constantly there is no safe screen window: keep your eyes up and on the landscape for the whole winding stretch.
- Use station stops as resets. A minute of still platform air between winding sections drains an accumulating queasiness.
- Ride cool and lightly fed; on a unit that leans through curve after curve, heat and a heavy meal are the two cheapest problems to remove.
- Have a rescue in your pocket: a sound therapy session through any headphones is drug-free, with relief in about 90 seconds.
Where to sit is its own question, answered properly in where to sit on a train for motion sickness. And for why trains set people off at all, from sway to reading to tilting stock, see the train motion sickness guide.
Frequently asked questions
Why does a slow regional train tilt at all?
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Because tilt buys the most time where lines wind the most, and Germany's unelectrified hill routes wind continuously. Up to 8 degrees of tilt lets the Class 612 hold a schedule that conventional stock cannot, at the cost of near-constant tilt motion for the passengers.
Was the Zagreb to Split ICN rough?
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It was a five-hour tilting crossing of mountain country, and the near-continuous curves meant the tilt worked most of the way. Rider accounts vary from delighted to queasy, which is the tilting-train pattern everywhere. The RegioSwinger chapter of that service was reported to have ended in August 2026.
Does DB still run tilting Class 612s?
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Yes, on fast regional services over curving unelectrified lines, where the class's tilt still earns its schedule. It is one of the few places in Germany where an everyday train still actively tilts.
Other trains and lines
Sources & further reading
Your next question, probably
Details on this page reflect published operator, heritage and engineering information as of September 2026; services, fleets and tilt settings change, so check with the operator before you travel. Train, route and operator names are trademarks of their respective owners; Dizzout is not affiliated with or endorsed by them. Motion sickness sensitivity varies from person to person; this page is informational and not medical advice.