I did Lyon > Paris > London 2 weeks ago. Got bike in bag for tgv then cycled to gare du nord and put full bike on Eurostar.
On the Lyon platform look out for signs that will tell you where to stand to get on your carriage. Means you can stand in the right spot and save time jumping the bike along the platform. Also, Eurodespatch office is far down the service platform at gare du nord and not clear where to find it with the improvement works happening. It's on the ground floor, far left and just keep walking.
I did Lyon > Paris > London 2 weeks ago. Got bike in bag for tgv then cycled to gare du nord and put full bike on Eurostar.
On the Lyon platform look out for signs that will tell you where to stand to get on your carriage. Means you can stand in the right spot and save time jumping the bike along the platform. Also, Eurodespatch office is far down the service platform at gare du nord and not clear where to find it with the improvement works happening. It's on the ground floor, far left and just keep walking.