Interstate seats

[Big Rick]

I was wondering if a set of the Ultimate king Big Boy seats from a Standard would fit on my Interstate? or would there be a gap between the seat and fuel tank? and if there is a gap, how much of a gap is there...is it very noticeable?
  Thanks
    Big Rick

[Lyle Laun]

Rick:
Yes they will fit but the front of the drivers seat will be a bit tight against the bigger Interstate gas tank. I run a King Big Boy from a standard on my Interstate.

Lyle.

[Big Rick]

ok cool, thanks for your answer....does the passenger seat mount the same was as on a standard?

[Willow]

The passenger seats are the same.

To be more specific on the difference in saddles, the nose of the Standard saddle will be wrinkled against the fuel tank.  The Interstate's but is taller at the rear.  The Standard slopes more quickly from the rear. 

[franco6]

When I tried the big boy on th I/S it was tight and when i sat on it the lock piece broke off .
Ultimate replaced the whole pan for free! so now I have one with back rest for sale lol