At DMG Motorsports, we present the Just1 J39 MX Helmet for riders seeking dependable off-road protection, comfortable fit, and practical track-ready features. This exact J3915:21 model combines a thermoplastic resin shell with a removable washable liner, effective ventilation, and Just1’s emergency cheek pad removal system. Available in Flat Black and multiple graphic options with sizes from 21 through 26.

Features:

• High-quality thermoplastic resin external shell
• Two shell sizes and two EPS sizes
• J.1.E.R. emergency cheek pad removal system
• Double-D retention system
• Removable and washable inner lining
• Eight intake vents and six exhaust vents
• Peak extension included
• Intermediate-oval helmet shell shape
• DOT and ECE certified
• Weight from 1430 ± 50 g