BMW Spied Developing Middleweight Adventure Bike to Bridge F 450 GS and F 900 GS

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Spy photos reveal BMW is developing a new middleweight adventure motorcycle to fill the gap between the F 450 GS and F 900 GS. The prototype uses an F 900 GS-style steel bridge frame with spoked wheels, 21-inch front and 18-inch rear, and what appears to be a reworked F 450 GS-derived engine in the 600cc range. It would rival the Yamaha Tenere 700 and KTM 690 Adventure, with a possible 2028 market launch.