Tom Anderson wrote:

I have a cycling friend from Cambridge who occasionally comes down on
the train. We generally meet out the back, Cheney Road, i think it's
called. From there, you get out onto Pancras Road; we normally head
south, and then fight our way along Euston Road, but if Midland Road
was available, we could go north, under the railway on Pancras Road,
and then south into town along Midland Road. It adds a couple of
hundred metres of distance, but takes off a couple of hundred metres
of riding on the Euston Road, so it's a win in my book!

I often take my bike into town and cycle between KX and the Baker
Street/Marylebone area. The best way that I've found is out of the suburban
station at KX, up past St, P and under the Midland main line, then up to
Mornington Crescent, across and through the estate to join Parkway at the
west end and then down and around Regent's Park, either to Great Portland
Street or into Baker Street itself, then down the marked cycle route through
Marylebone. It's not a bad ride and the roads are quite well maintained and
you can achieve a good speed - certainly much better than tackling Euston
Road and Marylebone Road and all the stop-start for lights, buses etc. It
depends where you want to go, though.