Rode to Limbe but ride back to Douala (70km) took 12 hours and ended with last 15km on 21 inch front tire tube in my rear tire. Out of rear tubes and rear tire probably now useless also. Spent another day trying to find these without any success. Some friends were looking also in Yaounde, but also nothing. So kind of stuck in a not so nice city, seems like I have to make expensive order from Europe. A lot of time in Africa it really feels it is not worth the struggle, countless hours and days go with having to solve trivial problems, often without much success.