After years of not being able to find a seat back brace that can actually do it's job in a crash, we decided to build our own. No split collars welded together, no formed flimsy sheet metal. This seat back brace is a high quality product designed to help protect the driver in a crash. The main unit is designed at 3" width to keep the seat belts in the proper position for the holes in the race seat. You don't want your belts too close together and most race seat all use 3" between the seat belt holes. The MiataCage seat back brace also comes with 2 collars that get used on the outside edge of the seat belts to keep them from moving in an impact. If they move around then that can cause slack in the belt which can then hurt the driver.
The seat back brace is designed so that it can be used right side up, or upside down to give flexibility on the angle of the 1" tube. As an option we have been using rod ends bolted through the 1" tube that then get run to the shoulders instead of directly to the center of the back. These rod ends can be put on either side of the seat back brace, so in situations where there is not a lot of room, you can put the rod ends on the back side to give you a better angle to the shoulder attachments.
The seat back bace is super strong and at only 1.5lbs it is light for its size. The Seat back brace comes complete with the following:
- Seat Back Brace
- (2) Seat Belt Retainment Collars
- (1) 14" x 1" x .095 Steel Tube
- (1) 4" x 6" Steel Plate
Take a look at some of the images on this page or different examples of mounting.
Crash Photos - We have decided to include some crash photos a SMer sent us from a few years ago that show what can happen to split collar style seat back braces that get welded together. Also take a good look at the seat and how it got deformed. Not only did the collars shear at the weld, but they also moved on the seat brace tube.
There are many arguments about what type of seat is better and how they absorb energy. Whichever side of the argument you are on I think you can see that mounting a seat properly so that it does not come loose from its upper or lower mounts is a good thing. Keeping the driver in the seat with the seat belts in their proper position will help make the chances of injury less since the safety products will be performing as designed if they stay in their original mounted positions. Most people only look at the seat back brace as helping in the event of a rear colission when in fact it will help in all types of accidents as it will keep the seat mounted securely in position.
* Some of the images shown are utilizing a rapid prototype plastic part. The finished part is Aluminum and will be anodized Black.