I have a Shimano Altus 8-speed on my hybrid/commuter bike. I have to put in a new cassette and a new chain as well and looking at the teeth of the largest chainring cog in the front, it looks like the teeth are pretty worn as well.
I expected the chainrings to be replaceable individually but was puzzled to see that they are one solid unit. It kind of looks like a chainset but the pedal part seems so be attached by a screw and does not appear to be part of the chainring-set.
The largest cog has 48 teeth and has 4 extra holes to attach a chain protector.
Does anyone know the name of the part and a supplier in the UK?
Would it be advisable to invest in a chainset where I can replace individual cogs? What would be a possible part combination?