BMC 557 Burris American Rail Replacement Motor Mount Clamp, SINGLE CLAMP

Sold Individually, Steel Clamp

Two Hole Aluminum Motor Mount Clamp

Narrow Style American Rail

BMC557

What is the difference between International and American Rail?
The distance center to center between the two engine rails.
International Measures 3 5/8" and American Measures 3".

Almost all race karts are International whether they are made in the US or not.