Lightweight pram for 4 month old?

[Maria101]

I've got a Bugaboo, but live in London and am finding it a bit too big and bulky (especially because there are outside stairs leading up to our 3rd floor flat). Can anybody recommend a very light, transportable pram that would suit a four month old baby? I hear that Maclarens are good, but are they suitable for under six months? I can't face another rainy day struggling with a heavy pram up our outside stairs!

Maclaren quest

I use one at work (nanny) and is fine for bumping up and down steps, regularly at tube stations and a friends house who is on the 6th floor with no lift!

and charge used it from 3m with no problems but it says from 4m

Yep, a Quest is a good bet. YOu won't even have to bump it, it's light enough to pick the whole thing up and lift it up the stairs, even with the baby strapped in.