Recumbent - Rans Stratus seat cushion

I have about 400 miles on my new Rans. The seat is great except for one big problem - the rubber cushion now slides forward just a little causing my backside to contact the frame tubing. The only solution I have found is to place another cushion (from a chair) on top and ride on that combo. Are there any replacement cushions or seat frames that would work better?
Gerald

call Rans, it isn't supposed to do that. I bought a used one and it doesn't do that.

geraldlanc... I am glad you wrote in. I just bought a Stratus and tonight on my ride I too noticed my ''back side'' feeling something hard... so I too may have to give RANS a call.. I live within one hour of Hays KS so maybe even make another visit and let them see what is happening.

I hd the problem of a hard 'ridge' on the back of the seat pan. After trying a few things I took my Dremel tool and cut off the 'fantail' of the seat pan. Now it tilts up much more, too. I like a more upright seat with more tilt up in the front of the seat. It went from being an extremely uncomfortable seat to the most comfortable one I've ridden in.
I put an aftermarket RANS seat on my previous Burley (the thick padded one) and thinking back I had the same problem and fixed it basically the same way. A great comfortable seat once you get it fixed and tilted up OK>

I have a Rans Stratus, with just over 9,000 miles on it. I have not had this problem. I'm wondering if the problem is with the cover, and not the foam itself. My cover (which is worn at the front all the way through now, and has one rip on the left side), is tied down very tightly to the seat. Could this be the problem, that the cover is not tight enough?

John

After another examination I notice that the foam is moving forward so may somehow "fix" the foam in the further back position by glueing it on the bottom. I need to examine even more.

RANS seats had that problem for a while. The seat pan was mounted too far forward on the seat frame. Cut the lip off the pan in back. I don't think there's a reason for the lip to be there in the first place.