The stock wheel offset of a Mazda Protege5 is determined by several factors, including the year and model generation, as well as any possible upgrades or modifications made to the vehicle's suspension system.

To determine your specific stock wheel offset:

1. Check your owner's manual for detailed specifications on your particular vehicle.

2. If you cannot find this information in your manual, consult with a professional mechanic or auto body shop who is familiar with Mazda vehicles and their respective models.

3. You can also contact the manufacturer directly via phone call during business hours to inquire about any available technical documents that may contain this specific data.

Additionally, it's worth noting that wheel offset refers specifically to how far away from center (toward front or rear) a tire sits within its mounting hub when viewed from above looking down upon ground plane where tires meet road surface before being secured by means such as lug nuts bolts etcetera depending on make model year etc...

Mazda protege 5 2002 wheel base