Near the end of this episode Roseanne's leather jacket features the patch/logo from her previous employer "Chicken Devine"
First appearance of Dan & Roseanne's childhood Friend, Norbert. (Ziggy)
Ziggy's full name is Norbert Walsh.
Dan's biker nickname from high school was Yor.
The opening scene of the Connor home indicates it's winter with snow on the ground. You normally wouldn't ride a motorcycle on a snowy street.