thanks Chris

To enter Senegal with a motorcycle, you don´t need a Carnet de Passage. At the border you can get a passavant by 5.000 XOF, validity only 5 days. You must renewal in St Louis or Dakar for 15 days more, but it´s better to do it in Dakar , paying 2.500 XOF.
Only CPD is required for vehicles (cars) more than 8 years old.

Possibly handy visa map graphic forwarded by a mate but don't know exactly when from or who to credit.
Plus, according to this detailed 2023 HUBB report, you can miss out Gabon (Cam > Congo Brazza) and miss out DRC (ferry Cabinda > Soyo).

PS; good off-HUBB link to a current West Coast run by HUBBer chrisallsop.

https://overlandershandbook.files.wo...023/10/jgc.jpg