Team DSM and Team Jumbo Visma will start Paris-Roubaix this Sunday using different tire pressure adjustment systems.

According to WielerFlits, both teams will be at the start line this year using their own unique tire pressure adjustment systems. This will be the first time that adjustable tire pressure systems will be used in a World Tour race.

WielerFlits also reports that 2022 Paris-Roubaix winner Dylan Van Baarle has been testing the Gravaa KAPS system during training and could theoretically use it on Sunday.

Jumbo-Visma has not yet finalized its lineup and has not revealed which riders will use the Gravaa system. A decision could be made after the final scouting of the Paris-Roubaix cobblestones on Thursday.

Team DSM has been testing the Scope Atmoz "management system" for over a year. The team's riders were initially confirmed to use the system before last year's race, but ultimately stuck with the stock Dura-Ace wheelset. Then, despite claims that it would debut at the Tour de France, the use of this technology was again frozen.

Jumbo-Visma is also testing its own adjustable inflation system, the KAPS system from Grabber, as Eduardo Affini's Cervelo team bike was spotted with the system at the Dwar door Hlaanderen It was revealed that Affini ultimately ended up retiring.

The system uses Bluetooth and handlebar-mounted controls to allow riders to lower or raise tire pressure on the fly.

Gravaa has published some of the Paris-Roubaix air pressure test results on its website, and it is clear that the race terrain played an important role in the development of the system. On cobblestone sections, lowering tire pressure could result in significant wattage savings.

These savings could be of great benefit to teams if they have a reliable air pressure adjustment system that does not increase extra aerodynamic drag and does not affect puncture resistance.

It would be unsettling for the teams to have to lower the air pressure and then not be able to raise it again, and it would be problematic to race with underinflated tires on smoother surfaces. Perhaps both teams are ready to eliminate potential niggles and gain an edge in this year's race.

It is unclear which riders on both teams will use this system, but Cycling News journalists will report directly to Team Ricercane and any discoveries made during the race.

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