From October 2026, Spanish cities will be able to let bicycles travel in both directions on single lane one way streets with a 30 kmh speed limit. The reform marks a major shift in urban mobility rules and cyclist safety.
Big change is coming for cyclists in Spain. On 1 October 2026, city councils will get the green light to let bikes travel both ways on one way streets with a 30 kmh speed limit. Cars will still have to stick to the old direction. This update is tucked into the latest Reglamento General de Circulación. It breaks with decades of car-first thinking in Spanish cities.
Until now, cyclists faced the same one way rules as drivers. It didn't matter if the street was wide enough or traffic was light. The new law, Real Decreto 518/2026, finally draws a line between bikes and cars. Many narrow residential streets can handle two way bike traffic without new lanes or big changes. Several Spanish and international sources confirm: the rule only covers single lane urban roads with a 30 km/h limit or less. Local councils must put up special signs before bikes can go both ways.
The reform does not automatically make all eligible one way streets two way for bikes—municipalities must first install new signs, so implementation will vary city by city.
Each city council will pick which streets qualify. Only single lane roads with a 30 kmh limit or less are in play. The change starts only after the new signs go up. No sign, no change. So, the rollout will be slow and uneven. Some cities will move fast. Others will wait. El Periódico and other top Spanish outlets say the reform gives local governments room to decide, not a blanket rule for the whole country.
The law goes further than just letting bikes go both ways. Cyclists will also be allowed to filter forward between stopped cars on either side if it is safer. For drivers outside cities, the rules get tougher. Motorists must now change lanes fully when passing cyclists, keep at least 1.5 meters away, and slow down by at least 20 kmh. Breaking these rules can mean a 200 euro fine and losing license points. Several independent sources confirm these stricter rules are meant to keep cyclists safer on rural and interurban roads.
This is part of a bigger push to protect people on the road and update traffic law for city life. The focus is shifting. Less about cars and highways. More about people and city streets. This trend has already sparked debate in other parts of Spanish traffic law. For example, as reported earlier, the DGT has refused to ease up on fines for not using the V16 beacon. The government is sticking to strict standards even as it updates the law.
The Spanish Directorate-General for Traffic (DGT) and national media emphasize that the reform is primarily about improving the safety of vulnerable road users, not just about allowing bikes to go against traffic. The package also encourages cyclists to ride in the center of the lane in cities for better visibility, and several cities like Pamplona have already begun evaluating how to implement the new rules locally.
One thing stands out. The reform is practical. Local councils get to set the rules street by street. There is no one size fits all. Cities are being pushed to rethink how space is shared. The real test? How fast councils put up the new signs. And whether drivers and cyclists get used to the new way of moving around. This is rare. Spanish traffic law is finally catching up with real life in the city. People, not just cars, are moving to the center of transport policy.
