Hi Sergsinger,
you may refer to part numbers if terms are unknown.
I guess you mean the parts
100-03 – upper front tube bearing – 6802Z
100-04 – lower front tube bearing – 6803Z
You did know that here are blind bearing pullers required to retract these?
More info here –>
STRIDA MK3 PART 100-03 / 100-04
389 – snubber bearing - WC87008Z
Very odd sized, Strida specific bearing.
More info here →
snubber bearing not turning anymore