Super Hang-On
12 Achievements
1-2h
PS3
Eat My Dust
Pass 100 rival riders.
27.2%
How to unlock the Eat My Dust achievement in Super Hang-On - Definitive Guide
All other motorcycles on the tracks are considered rival riders. You just need to pass by 100 of them over time. It's cumulative over all races.
This is cumulative. Even though you start off with 7 other riders you pass a ton of them as you're driving. You should have this within a course or two depending on how well you're doing.