Hi guys,
Recently got a new bike and new Kickr Core with Zwift Cog.
I just did my first ride on it. Afterwards i spotted some black residue on the floor/cog. Is this normal?
The Kickr Core came with the Zwift Cog pre-installed. I only put in the 142mm thingy, for lack of better word, (not english native sorry), to put my thru axle through.I’m a big noob regarding bikes
Thanks in advance