maps and so on
Hi guys
Thank you for answering.
As i had been riding and crossing Africa before GPS , so with maps and compass , i have some personal idea about the matter .
I sue the same link also
So , for regular conditions, mostly doing the same routes than others,evene a gps is unnecessary . 
But, in other conditions, it might be different . Like the road is closed, or it is impossible to take it . But you have a relatively good track . case 1
case 2 , no track but a localisation of the goal
Like in hiking with no map . or not accurate enough . both I had known also .
but of course , compass and mas are always usable .
I left recently the know-it-all club , no more invitations either
end of flood
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