Mega Man X7 Walkthrough

Central Circuit: Ride Boarski
This stage doesn't really need a walkthrough. It's just a Ride Chaser course in which you need to collect the bombs. After all bombs are gotten, you'll face Ride Boarski.

Palace Road: Bulldozer Mechaniloid Crushwheeler
During this stage, Crushweeler will be chasing you, so it's your primary threat.