You can read more about it and see pics here:I don’t know what an M chain looks like tbh, I’m new to bmw, if you have a pic of it I can let you know. The exhaust is def stock and will be swapped out soon.
Lubricating your chain was yesterday. Maintenance-free like the shaft drive for the first time.
Long story short I recently crashed my S 1000 RR, totaled it, and just put a deposit down on a new 2021 model. I'm trying to figure out if the stock exhaust will be replaced by the Akrapovic exhaust, and if it will come with the new M chain. Before I knew that my 2020 model would be totaled by State Farm, I saw the parts list for items to be replaced, and the stock muffler was now being replaced with the Akrapovic exhaust, hence why I'm wondering what else is different. While you may have a 2021 model, it was probably actually manufactured at the beginning of this year or in the fall of last year.
The one that I ordered is actually being built and will not be available for 6 to 8 weeks, so besides being anxious, and having a broken wrist, I'm just trying to figure out what's different between the 2020 model in 2021.