What is the widest seat you can put in a 914 and still be able to use the hand brake?

If you get a little creative and don't mind fabricating something to put on the seat rails... even drilling the seat rails, you can probably fit about a 19" (give or take an inch) seat on a teener. I ended up getting my seats from Hunsaker racing... and I ended up making a fairly simple bracket from scratch to mount them. They look nice... If you'd like some pictures, let me know. I should be able to get some taken soon.

Carlos