And if they know how to get rid of 'the Brompton Squeak' please for the love of god speak up. I've tried greasing the rear triangle-spindle and the suspension block. No dice.
normally this is the little white top hat washer / clear cellophane washer interface within the suspension block assembly, and a dab of bearing grease should deal with it (just in case that wasn't the bit of the suspension block you've greased already)
And if they know how to get rid of 'the Brompton Squeak' please for the love of god speak up. I've tried greasing the rear triangle-spindle and the suspension block. No dice.