n+1=4

Then there are my girlfriend's 4 bikes.

Which are:

1. Pale Blue Bobbin Playbike with a basket
   
2. Knackkered old Raleigh Traveller that I intend to do up
   
3. Green F-frame Moulton Midi
   
4. Purple F-frame Moulton Midi, because I love these bikes so much I fancied another one
   
   

Not bad considering I only learnt to ride a bike last year ;-)