Paddle sand tires run at c. 10psi would have made a huge difference on those dunes. Where's Joanna? Her lightweight Honda would probably have outdone all of your heavy KTMs.
U can't have it all 🤣, life is not always about easy, we drove arround 2000 km on that trip, I wouldn"t change to lighter bike. Joanna is preparing for her trip 👍
