Dunlop have renewed their partnership with the FIM ahead of the 100th anniversary edition of the International Six Days Enduro (ISDE), returning to the historic event with the Geomax Challenge in place to reward participants who choose to run Dunlop rubber.

The tyre giant will serve as an official partner of the competition, which is set to welcome around 500 riders from 30 nations to Portugal's Alentejo region between October 12-17.

Alongside its event backing, Dunlop will continue to run the Geomax Challenge, rewarding riders competing in the Club Team Award category who choose to race on the firm's Geomax EN92.

Every entrant will receive a Dunlop rider kit and challenge sticker, with the top three finishers recognised during the official ISDE podium ceremony on the final day of the action.

The overall winner will also bag a Dunlop Sparco seat and VIP MXGP pass, while second place nets a Dunlop paddock tent and third takes home an Ogio backpack. Second through to fifth place riders also get MXGP standard passes.

Dunlop is encouraging competitors to pre-order Geomax EN92 tyres and mousses before September 15 to secure discounted prices, with on-site fitting and support provided throughout the event by Spanish service partner Neumáticos Motoval. Stock available in the paddock during the race is expected to be limited.

The latest Geomax EN92 builds on the outgoing and proven EN91, which helped French rider Romain Dagna claim the 2025 Youth Enduro World Championship, while Max Ahlin secured the 2024 Junior EnduroGP title using the same tyre.

"We're thrilled to renew our long-standing partnership with the FIM by bringing the Dunlop Geomax Challenge back for the 100th edition of the iconic 6DAYS in Portugal," said Dunlop Motorcycle Europe Marketing Manager Roberto Finetti.

"The Geomax Challenge is designed to spotlight rider talent and elevate competition, offering a premium platform for both club and amateur riders. The 6DAYS is one of the few global events where amateurs line up alongside professional riders and we're proud to support them all."

FIM Marketing and Digital Director Fabio Muner added: "The Dunlop Geomax Challenge is a forward-thinking initiative that recognises the achievements of club team riders and is entirely in keeping with the inclusivity ethos of the FIM 6DAYS."

Photo credit: Dunlop