Indi Seat
Bead seats offer greater safety and comfort for the driver then many of the alternatives. Essentially a bag full of foam beads is placed in the cockpit or on the seat. A resin mix is added to the bag and the driver sits on the bag. The resin hardens and forces all of the beads together forming a hard seat which is moulded to the individual drivers body.
These Indi seats are used a lot in professional motorsport. They are commonly used in single seater racing and most of these cars don't have a fitted seat but just the bare tub. They are also used in endurance racing where there are multiple drivers. A large race seat will be fitted and the Indi seat will be used as an insert to make it more comfortable for each driver.
Indi seats are available in a variety of sizes. These include:
- GT (20ltr)
- 25ltr
- 30ltr
- 40ltr
- 50ltr (the most common size in modern single seaters)
- 70ltr
The 70ltr size is for small drivers in a big cockpit whilst the 25ltr is for a big driver in a small cockpit. Most Formula Student teams will use a 40 or 50 ltr size seat.