The Corbeau Revolution X System 5 is the full-carbon standard-size version of the Revolution, built for drivers up to 34 inches at the waist who want the range-topping shell without the wider XL dimensions. System 5 means the shell is laid up in full carbon throughout, which makes it lighter and stiffer than the Kevlar-and-carbon System 3 and considerably more so than the GRP/Kevlar System 1. The practical gain is a seat that flexes less under lateral load and gives a more direct read of what the chassis is doing.
The standard shell accommodates waists up to 34 inches and drivers up to 6 foot 2. At the 34-inch crossover, the choice between standard and XL depends on whether weight is carried at the waist or the hips. For most drivers under 34 inches, the standard shell is the right fit. If there is any doubt, the XL Revolution System 5 at £20 more is the safer call rather than squeezing into a shell that is too narrow.
The Revolution X head protection is the characteristic feature of the range: the hoop wrap-around design maintains full peripheral vision while keeping the driver within the protection envelope. Mounting uses M10 12.9 high-tensile cap head bolts through the seat’s 10mm inserts at the side mount points. Five 3-inch harness slots, compatible with 4, 5, and 6-point harnesses. HANS and FHR compatible as standard. FIA 8855-1999 homologation, valid 5 years from purchase date. Built in the UK with a typical production time of 3 to 7 days. Part number SF350. The Revolution System 3 at £130 less is the starting point for drivers who want the same dimensions in a heavier but still competition-capable layup.
Have you written anything about this exact product?
Yes, we have covered this exact product: Corbeau Revolution Driver fit guide. That is first-hand coverage from our own builds and showroom, not brochure copy.
Will I fit in this seat?
The maker sizes this seat for drivers under 6ft in height with a 36in to 40in waist. Those are the paper numbers; how a seat actually feels to sit in and climb out of is a different question, and our showroom team sit in these seats every day, so call us with your height and waist and we will give you the honest answer.
Is it FIA approved, and for how long?
Yes, it carries FIA 8855-1999 homologation. Every FIA seat has a not-valid-after year printed on its homologation label, and that label date is what a scrutineer checks, so look at the label on the seat you receive and check it against your championship regulations. Buying new means you get the freshest label the maker currently produces.
What do I need to fit it to my car?
This is a side-mount seat: it hangs between side brackets, the motorsport-style stack with fine height and angle control. You will need the car-specific frame, and a sliding runner if you want fore-and-aft adjustment. Our guide on base mount versus side mount walks through the whole stack, and tell us your car and we will quote the full kit.
Does it work with harnesses and a HANS device?
The shell takes 6 point compatible. If you are planning the full seat, harness, and HANS setup, tell us the car and we will spec it end to end.
How do I know it will feel right, not just fit on paper?
Fair question, because makers publish widths and weights, never feel, and two seats with identical numbers can feel nothing alike in the car. We keep the ranges on display in the Nottingham showroom, you are welcome to come and sit in them, and if you cannot get to us, call and describe your build, as the team sit in these seats every day. Our head support measurements guide shows the kind of real-world data we collect.
