
The facts.
| Brand | Just1 |
|---|---|
| Model | J-GPR |
| Shell material | 3K carbon fibre |
| Certification | UNECE 22-06 |
| Weight | 1,550 g +/- 50 g (size M) |
| Colour / graphic | Marco Melandri Replica, gloss finish |
| Retention system | Double-D-ring |
| Ventilation | 5 intake / 6 exhaust ports |
| Part number | 6030160151014 |
DescriptionThe whole story▼
The Just1 J-GPR in the Marco Melandri Replica livery is a full-face racing helmet built around a genuine 3K carbon fibre shell — one of the most demanding materials in the sport — and engineered for riders who refuse to compromise between track performance and road refinement. Every curve of this striking replica graphic is laid over a shell that has been constructed using Just1's proprietary S.D.C. (Sequential Density Construction) system, where multiple materials of differing densities work together to absorb and redirect both linear and rotational impact forces. The result is a helmet that wears the name of a MotoGP champion and backs it up with the engineering to match.
Key Features
- 3K carbon fibre shell available in 4 shell sizes paired with 4 EPP/EPS liner sizes for a genuinely precise, anatomical fit
- S.D.C. (Sequential Density Construction) multi-density impact system addresses both linear and rotational crash forces
- J.1.E.R. emergency cheek-pad removal system allows first responders to extract the helmet safely without risk of secondary injury
- PROTX2 antimicrobial technology woven into the interior fabric keeps the liner fresh across long riding seasons
- Comprehensive ventilation circuit with 5 intake and 6 exhaust ports, plus an integrated, ventilated chin guard lined with EPS
- Anti-fog Pinlock visor included as standard, with a dark tinted visor also in the box — ready for sun or shade
- Hydration-system ready: the shell is prepared for a CamelBak-style drinking tube
Construction and Materials
Four distinct shell sizes mean the J-GPR is never simply scaled up or down from a single mould. Each size is engineered independently, so the carbon fibre maintains its optimum thickness and structural integrity regardless of whether you wear an XS or an XXL. The gloss finish on the Marco Melandri Replica graphic is applied with the same attention to detail as the underlying safety architecture — this is a display-quality livery on a race-certified shell.
The interior is equally considered. A removable and fully washable liner retains its shape and antimicrobial properties through repeated washing cycles. A new liner-retention net keeps the padding precisely located so comfort does not degrade over time. The double-D-ring retention system is the benchmark fastener choice for track use: simple, secure, and independently verifiable at a glance.
Ventilation and Comfort
Eleven vents in total — five intakes channelling fresh air directly across the crown and forehead, six exhausts drawing heat away from the back of the shell — create a through-flow circuit that keeps concentration sharp on long summer sessions. The integrated rear spoiler contributes aerodynamic stability at speed, while the EPS-lined chin section adds protection where many helmets remain thin. For riders who push hard in warm conditions, the CamelBak preparation allows hydration without removing the helmet.
Fitment and Compatibility
The Just1 J-GPR is a universal full-face helmet suitable for all motorcycles. Select your size using the guide below: measure approximately 1 cm above the ears around the widest point 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
| Feature | Detail |
|---|---|
| Shell material | 3K carbon fibre |
| Certification | UNECE 22-06 |
| Weight | 1,550 g +/- 50 g (size M) |
| Colour / graphic | Marco Melandri Replica, gloss finish |
| Retention system | Double-D-ring |
| Anti-fog visor | Yes (Pinlock included) |
| Removable interior | Yes, washable |
| Ventilation | 5 intake / 6 exhaust ports |
| Part number | 6030160151014 |
What's includedEverything in the box▼
- 1x Just1 J-GPR helmet
- 1x clear visor
- 1x Pinlock insert
- 1x dark tinted visor
- 1x nose cover
- 1x premium helmet bag
FitmentBy head size — not by bike▼
Rated. Certified. Lit.
“Scored 81 of 100 for racing riding. It is strongest on safety equipment and gives up most on aero & stability — every point traces back to a documented fact and its source.”
— the Inter-Pace crewApproved to ECE 22.06.
Carries a rotational-impact system.
Reviewers rate the airflow highly.
Stable enough at speed.
1,420 g — mid-weight for this class.
Quieter than most.
Comfortable on long stints.
A full-face helmet, built for racing.
Mid-range bracket in the racing field.
440 € — Mid-range. Hover the bar for each range. Value is scored against the racing field, not in the abstract.
J-GPR vs —
Compare the grid.
| Shoei X-SPR PRO FIM90 | Shoei X-SPR PRO FIM 290 | AGV Pista GP R387 | Suomy S1-XR GP86 | Arai RX-7V FIM84 | Arai RX-7V FIM 284 | Shark Aeron GP FIM 284 | Nexx X.R3R Pro FIM Evo83 | Airoh GP 800 FIM82 | Alpinestars Supertech R1081 | Just1 J-GPR81 | LS2 FF805 Thunder GP Pro81 | MT-Helmets KRE 2 PLUS FIM Racing #281 | KYT KX-180 | Nolan X-804 RS Ultra80 | Nexx X.R3R79 | MT-Helmets KRE+ S78 | Shark Aeron GP FIM 178 | Airoh GP 800 ECE only77 | Arai RX-7V ECE only75 | LS2 FF805 Thunder GP Aero75 | MT-Helmets KRE 2 PLUS74 | Shark Aeron74 | AGV Pista GP RR S67 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Inter-Pace Rating | 90/100 | 90/100 | 87/100 | 86/100 | 84/100 | 84/100 | 84/100 | 83/100 | 82/100 | 81/100 | 81/100 | 81/100 | 81/100 | 80/100 | 80/100 | 79/100 | 78/100 | 78/100 | 77/100 | 75/100 | 75/100 | 74/100 | 74/100 | 67/100 |
| Level | Benchmark | Benchmark | Benchmark | Benchmark | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Recommended | Solid |
| Price | 799,00 € | 949,00 € | In store | 579,47 € | 759,20 € | 919,95 € | 779,99 € | 630,79 € | 639,20 € | 999,00 € | $1,028.00 | 679,15 € | 629,96 € | 519,35 € | 527,99 € | 509,00 € | 359,96 € | 965,99 € | 431,20 € | 879,20 € | 509,15 € | 449,96 € | 671,99 € | 1099,00 € |
| Weight | 1,45 kg | 1,45 kg | 0,0 kg | 1,4 kg | 1,568 kg | 1,568 kg | 1,48 kg | 1,35 kg | 1,435 kg | 1,54 kg | 1,42 kg | 1,341 kg | 1,25 kg | 1,45 kg | 1,42 kg | 1,35 kg | 1,7 kg | 1,48 kg | 1,435 kg | 1,568 kg | 1,341 kg | 1,3 kg | 1,41 kg | 1,5 kg |
| ECE 22.06 | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ |
| FIM racing | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | ✓ | ✓ | ✓ | — | — | ✓ | ✓ | — | — | — | — | — | — |
| Pinlock incl. | ✓ | ✓ | ✓ | ✓ | ✓ | ✓ | — | ✓ | ✓ | ✓ | ✓ | ✓ | — | ✓ | ✓ | ✓ | ✓ | — | ✓ | ✓ | ✓ | — | ✓ | ✓ |
| Shell | AIM+ fibre matrix | AIM+ fibre matrix | Carbon fibre with Sphera outer layer (1,600+ microspheres, polycarbonate skin) | Tricarboco (carbon, fibreglass, aramid) | PB-SNC2 fibreglass composite | PB-SNC2 fibreglass composite | Carbon-aramid composite (COVA structure, 80% carbon / 20% aramid) | X-PRO carbon fibre composite | HPC carbon | Carbon multi-composite | 3K carbon | Carbon 9K (100 % carbon fibre) | Full carbon (MT-ULCS) | Tricomposite (carbon, fibreglass, aramid) | Ultra Carbon | X-PRO carbon (>60 % carbon fibre) | Carbon fibre | Carbon-aramid composite (COVA structure, 80% carbon / 20% aramid) | HPC carbon | PB-SNC2 fibreglass composite | Carbon 6K (100 % carbon fibre) | TRIC tricomposite (MT-ULCS) | COVA carbon and aramid (80 % / 20 %) | 100% carbon fibre |
| Ventilation | 10/10 | 10/10 | 9/10 | 9/10 | 10/10 | 10/10 | 10/10 | 9/10 | 10/10 | 9/10 | 9/10 | 9/10 | 3/10 | 8/10 | 9/10 | 9/10 | 9/10 | 10/10 | 10/10 | 10/10 | 9/10 | 3/10 | 10/10 | 6/10 |
| Comfort | 10/10 | 10/10 | 10/10 | 9/10 | 9/10 | 9/10 | 10/10 | 9/10 | 8/10 | 8/10 | 9/10 | 8/10 | 7/10 | 8/10 | 9/10 | 9/10 | 9/10 | 3/10 | 8/10 | 9/10 | 8/10 | 7/10 | 9/10 | 9/10 |
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Our team is happy to help. Use the contact button below and we’ll personally help you choose the right gear or part.
Measure your head circumference about one centimetre above your eyebrows and compare it with the size chart on this page. Between sizes? Choose the smaller one — the padding beds in with use.
Yes — it’s tested and approved to the current ECE 22.06 standard and road-legal across the EU.
Most of our touring and sport helmets are Pinlock-ready and many include the insert. Check the ‘What’s in the box’ section on this page for this model.
Yes — the cheek pads are channelled so the arms of your glasses slide in comfortably.
Take out the washable lining and hand-wash it in lukewarm water. Clean the shell and visor with a soft cloth and water only — never solvents.
Our team will personally help you choose the right gear or part — around 24h for a reply.