I think the bearings in the rear wheel have gone on the Kaffenback, or something is going south anyway, so my usual 20+ miles of commuting is probably a bad idea, and is just terminal failure waiting to happen somewhere maximally inconvenient for work and home.
I'm a bit loathe to lock
Red up in the bike store at work, he looks too desirable, and even with three locks on him I'd still be worried.
That leaves Vince, the snow bike, who has 52" singlespeed gearing and studded tyres, so would be hard and noisy work to cycle over that distance.
It's easier to just jump on the Tram and Tube, and at least I can read my Kindle.