Bachmann Trains - Snap-Fit E-Z TRACK 8 PC. E-Z TRACK TALL PIER SET - NICKEL SILVER Rail With Grey Roadbed - N Scale

Q: What is the clearance all those piers in inches

3.125 inches of vertical clearance under the tallest pier.

Q: Can a kato train run on a Buchmann ez track?

Same scale Kato trains can run on ez track. Kato, n scale on Bachmann n scale or Kato HO scale on Bachmann HO. They are compatible

Q: Is track curved or straight?

You are asking about track. NO track is included with this box of Piers. It has piers only to have an elevated track.Track that you should already have or need to purchase separately. And yes, you can use curved or straight track with the PIER system