Parking outside at house in SE5 London.. advice needed

Looking at getting a Triumph Speed Twin 900.

We live in a quiet close which has many bicycles locked up outside, which is unusual for London.

We have plenty of space outside to to chain a motorcycle to either a u bar or a lamp post.

Just wondering what peoples thoughts are on having a speed twin locked up in these conditions?

There is almost zero motorcycles locked up in the Peckham area 😅

How do people get around locking up a bike in London keen to hear thoughts!!!