[alleroy]

As the title suggests, I am looking for a tiny and not expensive IEM in order to replace my Smabat NCO whose left driver has just died. I liked a lot both their sound signature (so the NCO2 are not an option from the reviews I have read) and especially the form factor, so I ask for suggestions for something similar and with maximum budget 100€.

 

[Poganin]

Well, Blon BL-03 has small shells. Even with replacement cable and better tips you should still be within your budget.

 

[Death_Block]

Sennheiser ie800. But not sure on used prices these days

 

[dunring]

I had the Soundmagic e80c and they were pretty well rounded, but the one thing was they're low profile enough to fit inside a helmet. I'd buy them again if I got another motorcycle. I just eq'd the treble down 2-3db and they were good.
I'm using the Venture Electronics VE Monk these days since on the ear is more comfortable.