I recently flew from London to Johannesburg with Iberia Airlines. I only found out at the airport that they have now changed their baggage allowance to two bags of 23kg each (46kg). I'm not sure of any other airline with such a flexible allowance.

This is for journeys to destinations outside of Europe. If I'd known I could now be riding my bike along the coast of Cape Town. But hopefully someone else can benefit from such a generous offer.

p.s. they're a very unreliable airline though and my own flight was delayed 7 hours, but they are recommended if rude flight attendants are your thing or you like the challenge of straining at a tv five rows in front to watch a film out in the cinemas, 5 years ago.