We went this hard segment in May 2025, definitely don't recommend. Even with Mountainbike you would need to carry your bike. The path has been completely destroyed due to the tree cutting + lots of nasty small bugs when clearing through the very narrow bushes.
Hard segment over rocky trails, through clear-felled area, partly very wet.
For mountain bikes and cyclocross but with luggage, I had to walk long parts and to carry the bike over some fallen trees, etc. Nature reserve so pay respect to nature, animals and hikers.