Notitur July 2, 2026
Travel Industry Intelligence
Railways & TransportPublished July 2, 20261 min read

Talgo and Renfe settle differences with 15 variable-gauge Avril trains

JSBy Joan SanzCurated and edited by Joan Sanz. · July 2, 2026 · Follow on LinkedIn
Voice reading · ~1 min

Talgo and Renfe have reached an agreement that puts an end to years of tensions over the S106 project. The solution: 15 Avril trains will be configured with variable gauge, a modification that allows them to run on both high-speed and conventional tracks. According to Hosteltur, the deal was sealed in Rivabellosa and unlocks one of the most contentious projects in the rail sector.

What does this mean for travelers? More flexibility. A train that can connect cities without transfers, using the same infrastructure. Operationally, Renfe gains a more efficient corridor and Talgo proves that its variable-gauge technology is a real asset, not a promise. The travel market benefits: more connections, less downtime, and an offer that competes head-on with air travel over medium distances.

My take: This agreement was overdue. We've been hearing "S106 problems" for years like a mantra, and in the end the solution was technical, not political. Kudos to Talgo for standing by its product. Kudos to Renfe for needing versatile rolling stock to optimize routes. Hopefully they hit the tracks soon.

Quick questions

What changes with variable gauge on the Avril?
The trains can smoothly run on both high-speed and conventional tracks by adjusting the wheel gauge while moving.
How many trains are modified in this agreement?
It's **15 Avril S106 trains** that will be configured with variable gauge, as per the deal between Talgo and Renfe.
Does this benefit long-distance travelers?
Yes, because it enables more direct routes without transfers, improving connectivity between cities and making rail more competitive against air travel.

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