London to Brighton (and back) question

Been offered a place on this weekend's L2B ride - stepping in for someone who can't do it.
To make it worthwhile I'm going to do the return trip too, does anyone know if the A27 has a cycle path / cycle lane along the entire section to Lewes?
Obviously cycling back against the flow of riders coming from London is a no-go and this looks like the next most obvious way to get out of Brighton.
Thanks
To make it worthwhile I'm going to do the return trip too, does anyone know if the A27 has a cycle path / cycle lane along the entire section to Lewes?
Obviously cycling back against the flow of riders coming from London is a no-go and this looks like the next most obvious way to get out of Brighton.
Thanks
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Posts
Alternatively, you could do a variation of the Hyde Park to Hove ride to get back. https://maps.google.co.uk/maps/ms?msid= ... 1c3c&msa=0
Rob
spesh allez