Good Morning

I wonder if I could get advice from someone who has rented bikes in South Africa. I plan to do a self-guided trip with a friend next August. We plan to rent in Cape Town for a trip that will take us up the West Coast and into Namibia. I have done a similar trip when I lived there. In fact I grew up there and will be visiting many familiar haunts. I owned a bike on my last trip and have not dealt with any specific rental outfits.

Has anyone had any good (or bad) dealings with rental companies to help me narrow my search? Names I have investigated are Dualsport Africa, Africa4Adventure, Dualsport Adventures, Dualsport tours, GS Africa, Cape Bike Rentals and Karoo rentals.

Any advice appreciated.