Alloy specs question 8G-2 vs 29G-4

[DamoC43]

Hi all,
I'm looking to replace x2 front alloys for C43 Part number A2054015400 7.5 x 19'' except on certain adverts the part description is followed by code 8G-2 and on others 29G-4 or 28G-10. The rest of the spec is identical in terms of part number, diameter, width, etc. Anyone know what this code means / it's relevance. Google isn't returning anything useful. Is it to do with finish perhaps as some are gloss black others matt + some have silver rims edge?

Thanks

 

[DamoC43]

Hi all,
I'm looking to replace x2 front alloys for C43 Part number A2054015400 7.5 x 19'' except on certain adverts the part description is followed by code 8G-2 and on others 29G-4 or 28G-10. The rest of the spec is identical in terms of part number, diameter, width, etc. Anyone know what this code means / it's relevance. Google isn't returning anything useful. Is it to do with finish perhaps as some are gloss black others matt + some have silver rims edge?

Thanks

Turns out it is related to the finish, see below table

Code	Finish
8G-2	High-gloss black
29G-4	Matte black
28G-10	Matte black and silver