Just1 J-STR Demonic Axel Bassani Replica 2025 Helmet
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Size chart JUST1 J-STR/PGR/PGRF
| Size | Head circumference (cm) | Head circumference (inch) |
|---|---|---|
| XS | 53–54 cm | 20.9–21.3 in |
| S | 55–56 cm | 21.7–22.0 in |
| M | 57–58 cm | 22.4–22.8 in |
| L | 59–60 cm | 23.2–23.6 in |
| XL | 61–62 cm | 24.0–24.4 in |
| XXL | 63–64 cm | 24.8–25.2 in |
How to measure your helmet size correctly: To find the right helmet size, measure your head circumference with a flexible tape measure.
It is important that the tape measure runs around the widest part of the head – only then will you get a correct result.
Place the tape measure at the front, about 1–2 cm above the eyebrows, and run it along the sides above the ears.
At the back, the tape must run over the largest part of the back of the head (not too low on the neck). The tape may run slightly at an angle – what matters is that it sits all the way around the largest points of the head.
Make sure the tape measure sits snugly but does not dig in. Measure 2–3 times for the most accurate result. You can then compare the measured value in centimetres (cm) with our size chart.
Tips for an accurate result
- Keep hair flat (e.g. do not measure over a voluminous hairstyle)
- Keep the tape horizontal, i.e. along the largest circumference
- Do not measure too loosely
- For values between two sizes:
→ usually choose the larger size (depending on helmet model / fit)
Important note on fit
The right helmet should fit firmly without causing uncomfortable pressure points.
A new helmet may feel a little tighter at first, as the inner lining adapts slightly over time.
- Worldwide shipping
- Genuine parts & verified quality
- Personal email support
- 14-day returns — in stock ships within 24h
Shipping & Returns
We ship with DHL and FedEx — express on request. If an item is in stock, express delivery can often go out within 1 business day. Standard delivery takes about 2–5 business days domestically and usually around a week worldwide. Please check the available shipping options and delivery times in your cart, as we offer several carriers depending on the country.
Returns must be registered in advance by email and are possible in line with our cancellation policy (14-day return request + 14-day return window after approval). Please note: unregistered returns are not accepted. You'll find all details on conditions, exceptions and refunds in our cancellation policy.
Payment & Security
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The Just1 J-STR Demonic Axel Bassani Replica 2025 is built to the same uncompromising standard as the WSBK paddock demands. An ABS outer shell moulded in two shell sizes, a dual-density EPS liner and triple certification — ECE 22.06, DOT and CCC — underpin a helmet that treats serious safety as non-negotiable. Wrapped in Axel Bassani's signature dark demonic graphics and race-sharp colour palette, this is a helmet that earns its place on road or track through material quality first and visual drama second.
Key Features
- ABS outer shell produced in two shell sizes for a precise, proportionate fit across the full size run
- Dual-size EPS inner shell for optimised impact absorption tuned to each shell volume
- Triple-certified: ECE 22.06, DOT and CCC — meets the current European road-legal standard
- J.I.E.R. Emergency Cheek Pads Removal System allows first responders to remove cheek pads rapidly without moving the rider's head
- Double-D ring retention system — the gold standard in motorsport for positive, rattle-free closure
- Protx2 antibacterial, quick-drying interior liner that fully removes and machine washes
- Scratch-resistant visor with a wide field of view; optional tinted and mirrored visors available separately
Construction and Material Quality
The J-STR shell is constructed from a high-grade ABS compound and offered in two distinct shell sizes rather than one shell stretched across the entire range — a choice that reflects genuine engineering discipline. The result is a helmet that sits correctly on the head at every size, keeps the centre of gravity where it belongs and avoids the bulbous appearance common in single-shell designs. The ergonomically contoured interior padding complements the EPS geometry and channels airflow through optimised ventilation passages to keep the rider comfortable on longer, faster roads.
Interior Comfort and Hygiene
Just1's Protx2 lining technology uses an antibacterial treatment woven into the fabric itself, not applied as a surface coating, so it remains effective wash after wash. The full interior — cheek pads, crown padding and moisture-wicking crown liner — detaches completely and is washable, keeping the helmet fresh across a full season of hard use. The ergonomic cheek pad geometry supports a firm, locked-in fit without creating pressure points during extended rides.
The Axel Bassani Replica Design
Axel Bassani competes at the highest level of the Superbike World Championship, and the Demonic replica translates his personal lid artwork directly into a production helmet. Aggressive line work, deep dark demon graphics and Bassani's characteristic colour blocking combine to create one of the most visually distinctive helmets in the J-STR range. Whether filtering through city traffic or pressing on through mountain passes, the graphics demand attention in a way that generic colour-matched designs cannot.
Fitment and Compatibility
The Just1 J-STR Demonic Axel Bassani Replica 2025 is designed for adult riders and is available in sizes XS through XXL. Use the head circumference guide below to select your correct shell size.
Specifications
| Size | Head Circumference (cm) | Head Circumference (in) |
|---|---|---|
| XS | 53–54 | 20.9 – 21.3 |
| S | 55–56 | 21.7 – 22.1 |
| M | 57–58 | 22.4 – 22.8 |
| L | 59–60 | 23.2 – 23.6 |
| XL | 61–62 | 24.0 – 24.4 |
| XXL | 63 | 24.8 – 25.2 |
How to Measure Your Helmet Size
- Wrap a soft tape measure around your head, passing over the ears and approximately 1.5 cm above the eyebrows
- Take the measurement at the largest point of the head
- Repeat the measurement to confirm accuracy
- The helmet should feel firm and snug — never loose or uncomfortable
- If the helmet rotates easily on your head, size down
| Brand | Just1 |
|---|---|
| Model | J-STR Demonic Axel Bassani Replica 2025 |
| Type | Full-face helmet |
| Outer shell material | ABS — 2 shell sizes |
| Inner liner | Dual-size EPS |
| Interior lining | Protx2 antibacterial, removable and washable |
| Certifications | ECE 22.06, DOT, CCC |
| Retention system | Double-D ring |
| Part number | 6030390171005 |
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JUST1 J-STR Demonic Axel Bassani Replica 2025 helmet
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Nose cover
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Helmet bag
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// Just1
Just1 J-STR Demonic Axel Bassani Replica 2025 Helmet
Tech specs
- Brand
- Just1
- Model
- J-STR Demonic Axel Bassani Replica 2025
- Type
- Full-face helmet
- Outer shell material
- ABS — 2 shell sizes
- Inner liner
- Dual-size EPS
- Interior lining
- Protx2 antibacterial, removable and washable
- Certifications
- ECE 22.06, DOT, CCC
- Retention system
- Double-D ring
- Part number
- 6030390171005
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
Shipping & delivery
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