Hello as mention in another thread i have some minor problems with my RD2 messenger and got tired of it (45mm chanline vs. my 42.8 according to sheldonbrown).

At the same time I'm looking for something smaller teeth wise and something that looks a bit like this: LINK! or LINK!.

Any suggestions, or can somebody identify what is in the pictures?

I'm a newb so any advice is welcome

Those look like Profile BMX cranks: https://www.profileracing.com/products_cranks.php

You will need a BMX chain wheel (AKA: sprocket): https://www.profileracing.com/products_sprock.php

More: https://www.danscomp.com/products.php...ow=CHAINWHEELS

Oh i have formulated myself pretty bad it's the chainring I'm interested in, in the two pictures

As for the drivetrain I have a Phil BB (113mm'ish, was on my frame when i got it so I'm not 100% sure of the size. EDIT: I'm 90% sure it's a BRS10S "68mm - Campagnolo Specific 110.5mm") and a Phil 120mm fixed/fixed rear hub. Just so you know what the crankset and chainring has to coop with

My only worries are that i make the same mistake again as i did with my RD2. A perfect chainline is priority no.1.