Just1 J-STR Tactical Silver / Red Gloss Full-Face Helmet
Prices for Thailand exclude tax · Shipping calculated at checkout
Outside the EU — customs duties and import taxes may apply.
Questions? Just reach out — our team will help you right away.
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
Payment methods
Your payment information is processed securely. We do not store credit card details and have no access to your credit card information.
The Just1 J-STR in Tactical Silver / Red Gloss holds three international safety certifications — ECE 22.06, DOT and CCC — making it one of the most comprehensively approved helmets in its class. Built on an ABS outer shell produced in two shell sizes for a precise fit across the full size range, it delivers the kind of confidence-inspiring protection that daily riders and weekend sport riders demand equally.
Key Features
- Triple certification: ECE 22.06, DOT and CCC — meets the latest international road safety standards
- ABS outer shell in 2 shell sizes for optimal proportions and fit at every size
- Dual-density EPS inner shell in 2 sizes, engineered to manage impact energy effectively
- J.I.E.R. Emergency Cheek Pad Removal System — allows first responders to remove cheek pads quickly and safely after an incident
- Double-D ring fastening — race-proven and unconditionally secure
- Protx2 antibacterial, odour-resistant inner liner — fully removable and washable
- Wide Vision visor with scratch-resistant coating and Pinlock 70 preparation (Pinlock lens sold separately)
Protection You Can Trust
Safety leads the design of the J-STR from the ground up. The ECE 22.06 homologation represents the current highest standard for helmets sold on European roads, covering a wider range of impact angles and speeds than its predecessor. DOT certification satisfies North American federal safety requirements, and CCC approval covers the Chinese market — so whichever road you ride, this helmet carries recognised credentials. The double-D ring chin strap closure is the gold standard favoured by track regulations worldwide, and the J.I.E.R. emergency cheek pad system means that in the event of an accident, medical personnel can extract the rider from the helmet with minimal neck movement.
Comfort for the Long Haul
The interior of the J-STR is built around the Protx2 antimicrobial lining, which suppresses bacterial growth and controls odour on extended rides. The full lining is removable and machine washable, so the helmet stays fresh across the seasons. Effective ventilation channels support air circulation to keep your head cool in traffic and at speed, while the contoured padding holds the shell firmly without pressure points — a helmet that stays comfortable on a two-hour commute or a full day in the saddle.
Visor and Equipment
The Wide Vision visor provides an expansive field of view — critical for awareness in city traffic and on fast roads. The scratch-resistant coating helps the lens stay optically clear over time, and the Pinlock 70 pin system lets you fit an anti-fog insert when conditions demand it. A nose cover is included to reduce buffeting and interior turbulence at motorway speeds.
Tactical Silver / Red Gloss Finish
The high-gloss silver and red graphic is purpose-designed to turn heads without sacrificing readability at speed. The contrast between the metallic silver base and the red detailing gives the J-STR a dynamic, sport-touring presence that suits naked bikes and sportbikes equally well. Gloss lacquer over the graphic delivers depth and durability in equal measure.
Finding Your Size
Measure your head circumference with a tape measure placed just above the eyebrows and ears, passing over the widest part of the skull. Take the measurement twice and use the larger result. The helmet should feel firmly snug — it will loosen slightly as the liner beds in. If it moves on your head without moving the skin, size down.
| 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 |
Specifications
- Shell: ABS, 2 shell sizes
- EPS liner: 2 sizes
- Certifications: ECE 22.06, DOT, CCC
- Closure: Double-D ring
- Emergency system: J.I.E.R. Emergency Cheek Pad Removal
- Inner liner: Protx2 antibacterial, fully removable and washable
- Visor: Wide Vision, scratch-resistant, Pinlock 70 ready
- Colour: Tactical Silver / Red Gloss
- Included: Helmet, nose cover, helmet bag
| Brand | Just1 |
|---|---|
| Model | J-STR |
| Colour | Tactical Silver / Red Gloss |
| Shell material | ABS, 2 shell sizes |
| EPS liner | 2 sizes |
| Certifications | ECE 22.06, DOT, CCC |
| Closure | Double-D ring |
| Emergency system | J.I.E.R. Emergency Cheek Pad Removal System |
| Visor | Wide Vision, scratch-resistant, Pinlock 70 ready |
-
Just1 J-STR Tactical Silver / Red Gloss helmet
-
Nose cover
-
Helmet bag
Fitment data coming soon.
No reviews yet.
// Just1
Just1 J-STR Tactical Silver / Red Gloss Full-Face Helmet

Tech specs
- Brand
- Just1
- Model
- J-STR
- Colour
- Tactical Silver / Red Gloss
- Shell material
- ABS, 2 shell sizes
- EPS liner
- 2 sizes
- Certifications
- ECE 22.06, DOT, CCC
- Closure
- Double-D ring
- Emergency system
- J.I.E.R. Emergency Cheek Pad Removal System
- Visor
- Wide Vision, scratch-resistant, Pinlock 70 ready
- Worldwide shipping
- Genuine parts & verified quality
- 14-day returns — in stock ships within 24h
- Personal email support
// Support
Frequently asked questions
Shipping & delivery
Estimate your shipping
Get the real shipping cost for this item to your address — the same rates as checkout.