Richmond Park to Chichester Cycle Route

How about a cycling route that takes you from London, through the Surrey and Sussex hills, with the South Downs waiting for you,as you approach historic Chichester.
This is an excellent route for a two day trip into the hills, using Chichester as an overnight halt.

Ditchling Beacon

It is possible to find country lane road cycling routes in Sussex and London. The classic Ditchling Beacon road cycling climb is an example, cycling from Balcombe to Brighton.