Just1 J-GPR full-face helmet in solid matte carbon finish
ECE
360° — drag me
1,550 g
02 · Data & docs

The facts.

Technical data
Part Number6030160901000
Shell Material3K carbon fibre
CertificationUNECE 22-06
Weight1,550 g +/- 50 g (size M)
ColourSolid Carbon, matte
Retention SystemDouble-D ring
Anti-Fog VisorYes (included)
Removable InteriorYes, washable
Hydration ReadyYes (Camelbak compatible)
DescriptionThe whole story

The Just1 J-GPR is engineered where the racetrack meets the road: a full-face helmet built around the proprietary S.D.C. (Sequential Density Construction) system, which layers materials of varying densities to absorb and dissipate both linear and rotational impact forces. Certified to UNECE 22-06 — the most demanding homologation standard currently in force — this matte solid carbon shell delivers race-grade protection in a clean, uncompromising finish.

Key Features

  • S.D.C. (Sequential Density Construction) multi-density impact management addresses both linear and rotational crash forces for superior head protection
  • UNECE 22-06 certified — meets the latest European safety regulation for road and competition use
  • Shell constructed from genuine 3K carbon fibre, available in 4 shell sizes with matched 4 EPP/EPS liner sizes for a precise, tailored fit
  • J.1.E.R. emergency cheek-pad removal system allows first responders to extract the helmet safely without risking neck injury
  • PROTX2 antimicrobial technology throughout the interior liner inhibits bacterial growth and odour
  • 5 intake and 6 exhaust vents plus an integrated ventilated back protector keep airflow moving at pace
  • Hydration-pack ready: internal routing prepared for a Camelbak-style reservoir

Construction and Comfort

Four distinct shell sizes — each paired with a dedicated EPP/EPS insert — mean the J-GPR avoids the common compromise of padding out a single shell to cover a wide head-circumference range. The result is a more uniform energy-absorbing structure around the entire skull. The removable and fully washable interior lining uses PROTX2 antimicrobial treatment to stay fresh through long track days. A redesigned liner-retention net keeps the padding precisely located even after repeated removal and refitting.

The EPS-lined chin bar adds an extra layer of protection at the front of the face, while the double-D ring retention system — the benchmark choice for serious riders and race regulations alike — delivers a secure, rattle-free fit every time. An anti-fog Pinlock visor is supplied as standard, eliminating the need for an aftermarket upgrade before you ride.

Ventilation and Aerodynamics

Eleven vents in total — five intakes and six exhausts — channel fresh air across the head and out through the integrated rear extractor. The ventilated back protector works in conjunction with this system to reduce buffeting and heat build-up at sustained road or track speeds.

Fitment and Sizing

To find your size, wrap a soft tape measure approximately 1 cm above the ears around the widest part of your head.

  • XS: 53–54 cm
  • S: 55–56 cm
  • M: 57–58 cm
  • L: 59–60 cm
  • XL: 61–62 cm
  • XXL: 63 cm

Specifications

Attribute Detail
Part Number 6030160901000
Shell Material 3K carbon fibre
Certification UNECE 22-06
Weight 1,550 g +/- 50 g (size M)
Colour Solid Carbon, matte
Retention System Double-D ring
Anti-Fog Visor Yes (included)
Removable Interior Yes, washable
Hydration Ready Yes (Camelbak compatible)
What's includedEverything in the box
  • 1x Just1 J-GPR helmet
  • 1x clear visor
  • 1x Pinlock insert
  • 1x dark visor
  • 1x nose cover
  • 1x premium helmet bag
FitmentBy head size — not by bike
04 · The Inter-Pace Rating

Rated. Certified. Lit.

All 85 points of the racing matrix were assessable
Rated in 2 categoriesRacing 81Sport 79
iP81/100RECOMMENDED Drag to spin
The Inter-Pace Rating
0/100
0507085100
RecommendedGreat value, no racing licence
P12 on our racing grid · 22 rivals in scrutineering · rated 2026-09-02
Entry 0–49 · Solid 50–69 · Recommended 70–84 · Benchmark 85–100
ECE 22.06 · EQRS · MIPS · DOUBLE-D · 11 VENTS · 1,420 G · PINLOCK · PEAK · 3K CARBON · ECE 22.06 · EQRS · MIPS · DOUBLE-D · 11 VENTS · 1,420 G · PINLOCK · PEAK · 3K CARBON ·

“Carbon, four shell sizes and eleven vents for 440 € is a lot of helmet. But the versions we stock carry ECE 22.06 only — Just1 lists FIM approval for the line, not for these — so check with your organiser before you enter anything timed.”

— the Inter-Pace crew
Homologation8/15
ECE 22.06 street homologation8/8
FIM FRHPhe racing homologation0/7

ECE 22.06 only — none of our J-GPR listings carries FIM.

Safety equipment10/10
Multi-density EPS liner2/2
EQRS emergency release system2/2
double-d closure2/2
4 shell sizes2/2
Rotational-impact system (MIPS or equivalent)2/2

Sequential Density Construction, double-D, four shells.

Ventilation9/10
11 vent ports3/3
Vents operable with gloves on2/2
Airflow in independent reviews4/5

Eleven ports move real air for the money.

Aero & stability3/6
Stability at speed in reviews3/6

Adequate; no spoiler or tunnel work documented.

Weight3/5
1,420 g measured3/5

1,420 g of 3K carbon — light for the price.

Wind noise4/5
Wind noise at motorway speed4/5

Quieter than most in this field.

Interior comfort7/8
Fully removable lining2/2
Washable lining1/1
Comfort in independent reviews4/5

Better padding than 440 € usually buys.

Fit range4/4
6 sizes2/2
4 shell sizes across the range2/2

Four shell sizes across six helmet sizes.

Character5/5
full-face — built for racing3/3
3K carbon2/2

A proper race shape in carbon, at half the money.

Price positioning10/10
Delivered quality against its price in this class10/10
440 € — Mid-range

The strongest price-to-kit ratio on this page.

Certification
ECE 22.06 street homologation
DOT FMVSS 218
Price-class
EntryBasic₩608,000Mid-rangePremiumHigh classHigh-endFlagship

440 € — Mid-range. Hover the bar for each range. Value is scored against the racing field, not in the abstract.

Safety & tests
SHARP impact ratingawaiting · not counted
CERTIMOOV protocolawaiting · not counted
Crew scrutineering
How this rating is made: crew scrutineering, cross-checked against Just1 official store XtremeHelmets Just1 official store Just1 official FIM Tests count only when a result exists — never a penalty
The race-helmet gridmint = this helmet
90/100 P1 Shoei X-SPR PRO FIMBenchmark · gap —
89/100 P2 Shoei X-SPR PRO FIM 2Benchmark · gap −1
87/100 P3 Shark Aeron GP FIM 2Benchmark · gap −3
86/100 P4 Suomy S1-XR GPBenchmark · gap −4
85/100 P5 MT-Helmets KRE 2 PLUS FIM Racing #2Benchmark · gap −5
84/100 P6 Arai RX-7V FIMRecommended · gap −6
84/100 P7 Shark Aeron GP FIMRecommended · gap −6
83/100 P8 Arai RX-7V FIM 2Recommended · gap −7
82/100 P9 Airoh GP 800 FIMRecommended · gap −8
82/100 P10 NHK Helmet GP-R TechRecommended · gap −8
81/100 P11 Alpinestars Supertech R10Recommended · gap −9
81/100 P12 Just1 J-GPRRecommended · gap −9You’re viewing
81/100 P13 LS2 FF805 Thunder FIMRecommended · gap −9
81/100 P14 Nexx X.R3R Pro FIM EvoRecommended · gap −9
80/100 P15 KYT KX-1Recommended · gap −10
Radar · head to head

J-GPR vs

J-GPR · 81 · 0
Full comparison — Matrix · Radar · Duel — lives on slide 05.
05 · Compare

Compare the grid.

J-GPR81/100Recommended
VS
0/100
Pick your challenger — every bar re-fights instantly
How these ratings are made: Inter-Pace crew scrutineering, cross-checked against Just1 official store XtremeHelmets Just1 official store Just1 official FIM SHARP / CERTIMOOV count only when results exist.
06 · Complete the look

Head to toe.

Auto-matched to this helmet's sector — Racing
Head to toeAuto-filled from the Racing sector
01HEADDone — the reason you’re here
Just1 J-GPR Helmet Solid Carbon Matte
₩608,000On your head
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05PROTECTIONOptional — chest & spine
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07 · Support

Questions, one topic at a time.

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How long does delivery take?

We’re based in Germany. Standard delivery goes by DHL and national postal services and takes about 2–5 days within Germany, 1–2 weeks within the EU and 2–6 weeks outside the EU. Need it sooner? Express delivery reaches most of the world within a few days — just choose it at checkout where available.

How much does shipping cost?

Your exact shipping cost is calculated by destination and weight and shown at checkout before you pay — no hidden fees. Express delivery is selectable at checkout where available.

Do you ship to my country?

Yes, we ship to over 130 countries. Prices, taxes and delivery times for your destination are calculated automatically at checkout.

Will I have to pay customs or import duties?

Within the EU, no — our prices already include all duties and EU VAT. For deliveries outside the EU (e.g. Switzerland, the UK or the USA), your order may be subject to import duties and taxes set by your country. These are collected by the carrier when your parcel arrives, aren’t included in our prices, and are outside our control.

How can I track my order?

As soon as your parcel ships we email you a tracking link, so you can follow it all the way to your door.

What if an item is out of stock?

On out-of-stock items you can request a delivery time or leave your email to be notified the moment it returns — just use the notification box on the product.

Didn’t find your answer?

Our team will personally help you choose the right gear or part — around 24h for a reply.