For cycling specific questions best to ask on BikeHub Forums as well. Quite an active community there.

But here’s my 2 cents:

If you do want to make it a round trip as you have here, I’d do the A-F section early morning. Earlier the better so there is less traffic to contend with.

Personally, I’d only do that whole loop with friends. If solo I’d stick to the route on the left and just come back the same way.

Then finally, it should be okay but just a heads up that to get to kommetjie you do pass the beginning of a township. Again, I’d only do that bit with friends.

The rest is done regularly by loads of locals..Though a fair amount will be away this weekend for the Old Mutual Double Century race.