Try the fold on the Gocycle! Or should I say assembly!The commute is too long, hilly and unsafe to do riding the whole way. There might be also some off-road, so I think the Gocycle might be a good option.
Very expensive though, so I've found a Gocycle G1 on eBay and I'm trying to get it. It weights 16.2kg and has 20" mag wheels. Let's see if I get it. Otherwise I'll reconsider Brompton or similar.
KudosDave