Occasionally I've done a Salter Road loop in Rotherhithe. There's the odd light around Decathlon (Surrey Quays rd has far less traffic than Lower Road towards Surrey Quays Overground, and less angry driving) but the Salter Road section is pretty good. Haven't done it since they remodelled the roundabout at the tunnel entrance though, but outside of peak hours I'd imagine it's fine.
Occasionally I've done a Salter Road loop in Rotherhithe. There's the odd light around Decathlon (Surrey Quays rd has far less traffic than Lower Road towards Surrey Quays Overground, and less angry driving) but the Salter Road section is pretty good. Haven't done it since they remodelled the roundabout at the tunnel entrance though, but outside of peak hours I'd imagine it's fine.