It was Emma. At first she didn't realize the charred, burning pile of metal was her second dirt bike but because her crush on Jesse was so strong she took it well after he revealed it.
"Here Jesse, use this one. It's identical. They will never know."
Jesse hopped on right away. "But I can't leave you here Emma"
She hopped on the back and gave his big belly a hug from behind, happy to be close to her dream man. "I'm ready for our race date Jesse. Let 'er rip!"