Hi all,

I'm relatively new to cycling and have been riding my Mango Single Speed to work in London.

A few months after purchasing my bike, Someone tried to steal my saddle (the mind fathoms!) and ever since, the saddle kept coming loose no matter what and slipping backwards and rattling around, I continued to tighten it and a couple of months back my seat post connector snapped at the top, resulting in my saddle falling off into the road and leaving me being a bit sore!

I brought a new seat post (single bolt like my old one) and have used it a couple of times and my saddle still keeps coming loose! From what I can see my saddle isn't damaged but it just seems weird it's still happening! Could it be the actual saddle?

I've tightened it as best as I can, I sit back on it and hear a click and it's gone again so I must be doing something wrong!

Would anyone have any recommendations as it's getting bloody frustrating now!
Is there any kind of sealant I should try, double bolt seatpost?

Many thanks for any help in advance