I was a motorcycle courier in the 80s. In those days £450 net of the radio charge (£45 p/w) was a goodish week. £350 was OK and anything over £500 was wonderful.
Fuel was about £50 a week, the bike was anything from £500 to £2500 and leathers, helmet, gloves, boots, waterproofs and similar malarkey.
The top box and courier bag were free.
In those days, £450 was a lot of money and I got a mortgage on the back of it. I paid tax (sod all, but I declared and used an accountant).
My then sweetiepie (still a friend today) was a bicycle courier working out of Mayfair and rarely broke £180 a week. She loved it, but it was physically shattering. As soon as she had enough moolah for a van, she kept the bike for pleasure. Not a fixie...
I wouldn't mind one of my kids doing it now as a student earner in London. I just don't think there's the work and the money probably isn't as good in real terms as it was.
You used to see a couple of cycle couriers at every red light on Oxford Street, Shaftsbury Avenue, Fleet Street, Bank, in and around Covent Garden.... How many do you see today?
Likewise motorcycle couriers.... Six or so at every light on Marylebone Road or Cromwell Road.
Bloody Internet! Bloody email!