C 600/650 drivetrain sprockets change tutorial?

[Putnam]

I 've just changed the chain rail from first to second on my 2016 C 650 Sport (41000 km).
I know that a chain/sprockets replacement will take place in several years ahead, but I wanted to know what the procedure is.
My local workshops in Greece quoted a very high labor cost, mentioning that the front sprocket is difficult to access and that a lot of parts need to be removed.
Rear sprocket is easy to change, chain too, but front?

Does anyone have a video/picture tutorial?

Thanks.

 

[justscootin]

I changed the rear sprocket last year when I replaced my chain after stage 4. The new rear sprocket I immediately started on stage 2 which leads me to believe the sprocket is a fraction smaller than the original. The only reason I replaced the sprocket was I had to remove it to replace the bearings at 92000km. I then ran the old chain for another 10000km to wear out the burrs. Then at 102000km I replace the chain

As for the front sprocket I did not replace for the reason you stated the work involved was to much. If the front sprocket really needs replacement the manual would not show how to do do the job by pulling the new chain through with the old chain. That's what I did