Galder fails to roll a single success as he tries to get the speeder out of the bike's way. The biker in turn fails as well, though, so nothing happens!
You catch a glimpse of the rider as he zips by... a Togruta quick-drawing a two-barreled pistol while keeping the bike under control with the other hand.
You shoot off with Sankra in close pursuit. He doesn't open fire; he knows he's going to need to keep his bike under control to give chase.
After three turns of rolling... you are aggravated to find that he is having no problem keeping up with you, matching you each time. Unless you go for more difficult obstacles, he will stay on top of you.
It will be two successes to pass.
Another three rounds of rolling and it is actually Galder that messes up. He manages to ram your speeder from behind when you only narrowly avoid a cargo crane.
He is the better pilot here. You can opt for more dangerous maneuvers but you risk losing control or crashing.
Snap rolls four successes, setting a high difficulty for Galder to meet. In return, Galder rolls one success. Uh oh.
Snap Sankra actually succeeds in damaging one of the speeder's engines via collision, leaving Galder pulling away in a crippled vehicle. It goes careening for the crash site and sets down hard before smashing into a wall. Galder is thrown clear for 15 damage.
Snap Sankra is not planning on getting off his ride. He is coming around to make a pass at you.