I was on the eurostar a few days ago. Believe it or not there was actually someone carrying a bike in the carriage. By the looks of it a Tokyobike with just the front wheel removed, so the forks and head tube were sticking out of the (perhaps 85cm?) medium-sized bag he was using. It looked like a bit of a struggle, but he got on the train and off the other side. So maybe you just need to be nice to the guards.
The audacity. Tokyobikes are the ones with smaller wheels, right? All the bike bags I'm looking at come in at at least 120cm in length, and that's removing both wheels.
I was on the eurostar a few days ago. Believe it or not there was actually someone carrying a bike in the carriage. By the looks of it a Tokyobike with just the front wheel removed, so the forks and head tube were sticking out of the (perhaps 85cm?) medium-sized bag he was using. It looked like a bit of a struggle, but he got on the train and off the other side. So maybe you just need to be nice to the guards.