Wahoo Kickr Core black residue

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 :confused:
Thanks in advance

It could look like it just comes from your chain. If you are using wax this is not unusual.

Looks like normal spots that come from an oiled chain. Nothing to worry about. At least as long as no one in your household cares about you ruining that wooden floor. In that case make sure to have done “The Chores” :smiley: .

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