He chuckled and leaned forward, reaching down to move her feet up to the pegs and then position her hands over the bars properly. With one foot still on the ground the other rest on the lip of the peg outside her own foot Kylo Ren leaned forward to hold the bars as well.
"You'll be fine," he said as he revved the engine for a test before picking up his foot. They set off at a slow pace, he basically driving but allowing Heather to toy with the drive if she wished. If he so recalled...she really liked the speeder.