Silly me, not posting a picture of my Mango. Here is a picture of Mango130 in front of Velomobile.nl; where I purchased it secondhand.
I skimmed a wooden pole today on my way to work. Luckily no obvious damage, not even scratches to the bodywork. It sounded horrobly loud though, I even felt the bike getting a knock. Come to think of it, I need to check the location where the suspention leg is held in place to the bodywork. The knock I heard & felt must have been the hub axle (since not even a scratch on the body). The picture below is a schematic, not exact the Mango's suspention, but good enough to illustrate my point of interest. The ellipse is the connection which I definatly need to check. It's likely the one taking the most abuse... I should make a habit of checking it more regulary; here in Belgium the roads are not always as forgiving as Mango130 would want them to be.