913 18 degree 200CC

The web site says that all of the the 913FD fairways are 200CC Head Volume . I compared the 15 and 18 and the 18 looks smaller.   Just wondering if that's true.

Thanks

I saw that it shows 180cc on the website.  The 13.5 and the 15 are around 180cc and the 18 is closer to 16cc and we will have that corrected.