Just1 J40

The Just1 J40 is a current ECE 22.06 off-road helmet with polycarbonate construction and a screw-free peak-release system. Moto Central stocks nine graphics, ranging from solid matt black to Flash, Shooter and Mission colourways.

How the J40 differs

Just1 specifies two polycarbonate outer-shell sizes and two EPS sizes, with a high-quality thermoplastic resin construction. The J.1.E.R. system allows emergency cheek-pad removal, while the PROTX-treated inner lining can be removed for cleaning. Unlike the screw-mounted J39 peak, the J40 uses Just1’s newer peak-release arrangement without screws.

The current J40 is listed by Just1 with ECE 22.06 approval. Check the certification label in the exact helmet and follow the supplied instructions for the peak and emergency-release components.

Fit and pre-ride checks

Measure above the ears and eyebrows, then compare the result with the size chart. A new motocross helmet should be firmly supported around the crown and cheeks, with no sharp pressure points and no independent movement when the chin bar is turned. Check the fit again with your usual goggles.

• Make sure the peak is correctly located in its release system before riding.
• Confirm the goggle strap sits securely and does not interfere with the peak mechanism.
• After cleaning, refit the removable lining and cheek pads fully before use.

Why shop J40 helmets at Moto Central?

Moto Central brings the available J40 graphics together on one page and links them into the wider Just1 range. Riders can compare the J40 directly with the screw-peak J39 or multi-composite J22 without relying on generic brand claims.

Customer questions

Is the J40 ECE 22.06 approved?
Yes. That is the approval stated in Just1’s current J40 specification.

What comes with the J40?
Just1 lists a helmet bag in the box. Check each Moto Central product page for any colour-specific or promotional extras.