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This guide is for drivers whose ribs ache after a long session and for anyone planning to race at FIA or international level. It covers our four picks at different budgets and what a rib protector does. It also covers where one is compulsory and how to get the size right.
Our karting rib protector picks at every budget
The low and mid picks state no approval. They are foam and flexible-shell protectors for drivers whose main complaint is a seat that bites. The high and pro picks are approved to FIA 8870-2018, which is the standard you need for CIK-FIA and international racing, and further up you pay for a hard shell and then for a thinner design.
Low · Top budget pick
OMP Kart Rib Vest
Pros
- Three layers of multi-density foam
- Laser-cut vent holes
- Quick to put on and take off
Cons
- No FIA approval
- Foam only, no hard shell
| Approval | None stated |
|---|---|
| Construction | Triple-layer multi-density foam |
| Sizes | XS to XL |
If your ribs ache after a long hire session, start here. Three layers of foam spread the load from the seat and wheel, and the vent holes stop it becoming a sauna.
There's no shell and no approval. It's comfort protection, not race protection.
Mid · Top flexible-shell pick
Sparco Pro Shell
Pros
- Flexible outer shell spreads impacts
- Reduces vibration through the seat
- 3D mesh lining
Cons
- No FIA approval
- Three sizes (S to L)
| Approval | None stated |
|---|---|
| Shell | Flexible, S.I. Tech |
| Lining | 3D mesh |
| Sizes | S to L |
A flexible shell over the ribs takes this a step beyond foam. Sparco says it spreads impact energy and cuts the vibration coming through the seat.
Still no approval, so it's for regular drivers and club racing where one isn't required.
High · Top value FIA pick
OMP KS-1 Pro
Pros
- FIA 8870-2018 approved
- Covers ribs, back and chest
- Regular and wide sizes, with auto-adjusting fit
Cons
- A 10 mm insert kit for slimmer drivers costs extra
| Approval | FIA 8870-2018 |
|---|---|
| Shell | Polycarbonate |
| Padding | Rubber impact-absorbing layer |
| Sizes | S to XL, plus M to XL wide |
OMP developed this with racing teams, and it meets FIA 8870-2018, the standard you need for CIK-FIA events. A polycarbonate shell covers ribs, back and chest.
The wide sizes and auto-adjusting fit make it easier to get right than most hard protectors.
Pro · Thinnest FIA rib protector
Tillett P1 Defender
Pros
- Thin enough not to change your seat size
- Integrated chest protector and extra rear protection
- Cadet sizes available
Cons
- The most expensive protector here
| Approval | FIA 8870-2018 |
|---|---|
| Coverage | Ribs, self-forming chest protector, rear |
| Sizes | Cadet to M, each in plus and minus fits |
Tillett says this is the thinnest FIA 8870-2018 protector on the market, so you don't need a bigger seat to fit it. FIA 8870-2018 is mandatory at all CIK-FIA karting events.
Cadet sizes make it one of the few FIA protectors on our list that fits young racers.
Prices are from Demon Tweeks on 3 Nov 2026 and include VAT. A range means the price varies by size: child sizes are VAT-free. If you buy through these links we may earn a commission. It doesn't change the price you pay.
Compare them side by side
The table shows the approval and price of our four picks and two more protectors worth a look.
| Product | Approval | Price | Our pick for / notes |
|---|---|---|---|
| OMP Kart Rib Vest | None stated | £64.69 | Top budget pick |
| Sparco Pro Shell | None stated | £103.31 | Top flexible-shell pick |
| OMP KS-1 Pro | FIA 8870-2018 | £339.13 | Top value FIA pick |
| Tillett P1 Defender | FIA 8870-2018 | £563.99 | Thinnest FIA rib protector |
| Alpinestars Bionic Rib Support | None stated | £108.33 to £154.99 | Fibreglass core with EVA foam, in youth and adult sizes. |
| Alpinestars AK-1 | FIA 8870-2018 | £304.58 to £365.50 | Carbon-fibre shell. Youth and XXS/XS sizes only, so a junior option. |
Prices are from Demon Tweeks on 3 Nov 2026 and include VAT. A range means the price varies by size: child sizes are VAT-free. If you buy through these links we may earn a commission. It doesn't change the price you pay.
How we chose
We have not lab-tested or track-tested these rib protectors, and we don't give scores. We picked by approval first, because that decides what you can actually race in. Then we looked at fit and size range (including child sizes), then ventilation and weight where the maker states them, and then price. We read every spec from the product page at Demon Tweeks on 3 November 2026. Prices move, so check before you buy.
How to choose the right rib protector
What does a rib protector do?
A kart seat holds you close to the frame, and the sides of the seat press against your ribs through cornering and contact. Do that for a long session in a seat that's a bit too snug and your ribs will tell you about it the next day. A rib protector is a padded or shaped vest worn under the suit to spread those loads. Motorsport UK's beginner guidance describes it as not mandatory but something that will save you some post-race aches and pains.
The FIA calls the item karting body protection. It is covered by FIA Standard 8870-2018.
Do hire tracks lend rib protectors?
Across the 86 venues in our data that record their kit, no venue lists a rib protector among the items supplied, and one lists a neck brace. A hire session does not normally include one. If you want one, you bring your own, and the track's own terms apply.
Check an individual venue on its track page before bringing extra equipment.
Is a rib protector compulsory?
- Motorsport UK. The beginner guidance calls it not mandatory. The competitor clothing rules in the National Competition Rules 2026 (Chapter 18 Appendix 7) that we read do not list a rib protector. We have not confirmed whether an individual club or series requires one, so check the supplementary regulations for the event you plan to enter.
- CIK-FIA and FIA. The CIK-FIA technical regulations say the driver must wear karting body protection. They make protection to FIA 8870-2018, in the correct size for the driver's height or up to one size lower, mandatory at FIA Karting Championships, Cups, Trophies and all international karting competitions.
When is a rib protector worth buying?
A rib protector is worth considering once you do regular long sessions or race, particularly if you have had sore ribs after hire sessions. If you plan to race at FIA or international level it is mandatory, so buy to FIA 8870-2018. If owner-driver racing is next, start with our guide to owner-driver classes.
What size rib protector do you need?
FIA 8870-2018 is the standard name to look for. The sizing wording in the CIK-FIA regulations tells you something about fit: the protector should match your height or be one size down. It should not be larger.
A protector that is too big can shift under the suit and defeat the point. Try it with your usual base layer and the suit you intend to race in, seated in a kart if you can. Check that you can breathe, turn and reach the wheel. Follow the manufacturer's care instructions, and replace it if the padding cracks or compresses permanently or after a heavy impact.
Sources
- Motorsport UK, Get Started: Karting (getstarted.motorsportuk.org/karting/).
- Motorsport UK, National Competition Rules 2026 (Edition 5), Chapter 18 Appendix 7.
- CIK-FIA Technical Regulations 2026 (v1.2), Article 7 and Article 7.5 (fiakarting.com).
- kart365 venue data (
kit_provided), read 2026-11-03.