Removable horizontal for harness?

[DeepBlue68]

If you're asking about which is better (cage mount right behind the driver's shoulders, or mounting on the floor right behind the driver's seat), the cage mount is undoubtedly better. I'm not sure how many of them do it, but a lot of racing bodies dictate the range of acceptable angles that the belt creates as it leaves the driver's seat. IIRC, the last one I saw said it had to be between 15* up and 30* down (when looking from the side). If the belt leaves the seat and goes immediately down (i.e. a floor mount), in the event of a front/rear collision, the force of the driver being propelled forward will cause the belts to cinch downward on his/her shoulders, which can crush the vertebrae in your spine.

Now, having said that, I think that a lot of racing bodies would also say that mounting the harnesses to a bar that is removable isn't that much of an improvement because you're relying on the shear strength of the pins in the bar connection, not the strength of the whole cage and its welds. Which is why those syle cages aren't approved by most sanctioning bodies I think. IMO though, a harness connection to a removable bar right behind the driver's shoulders is still better than a floor connection.