The 27-year-old actress looked biker chic in a Grey body hugging tee atop a green tank, black skinny jeans and black ankle boots.
Her hair, styled sleek straight with a middle parting, was secured under a hairband. She wore no jewelry, no makeup.
Hrithik, 37, appeared relaxed, which he shouldn't have since he was sans a helmet, as he sat back and let Katrina take charge of the venerable 150cc bike.
Hrithik, brand ambassador of Hero Honda Bikes, happily sat as pillion rider, probably deferring to a clause in his Hero Honda endorsement deal that forbids him from riding another bike brand.
Katrina looked a little pensive before the ride but once behind the wheel, she looked an easy rider.
Katrina, who learn't to ride a bike for her role in ZNMD, arrived at the venue a little ahead of time for a quick solo bike rehearsal and a pillion ride rehearsal with her hair stylist Hakim Alim.
She rehearsed without a helmet but for the final media event she put one on.
Hrithik looked hot showing his rippling muscles in a black body hugging black tee, blue jeans and Harley Davidson cap.
Katrina and Hrithik rode the bike on the scenic road for about 10 minutes with their security details and media persons hovering by their sides on cars, bikes and scooters.