This helmet is engineered to provide certified impact protection while accommodating a ponytail hairstyle, eliminating the need for riders to adjust or remove their hair restraints before riding. The
This helmet is engineered to provide certified impact protection while accommodating a ponytail hairstyle, eliminating the need for riders to adjust or remove their hair restraints before riding. The design integrates a rear‑mounted opening that maintains structural integrity and ventilation performance.
The helmet features a reinforced elliptical aperture measuring approximately 45 mm in height and 30 mm width, positioned centrally in the occipital region. Internal foam contours are tapered to distribute pressure evenly around the hair bundle, preventing localized hot spots during prolonged wear.
The outer shell is constructed from injection‑molded polycarbonate with a nominal thickness of 2.2 mm, providing a balance of impact resistance and low mass. The inner liner uses expanded polystyrene (EPS) with a density range of 20–25 kg/m³ and a thickness varying from 18 mm at the crown to 22 mm at the temples to manage energy absorption.
Samples are routinely evaluated against the EN 1078 bicycle helmet standard, with peak headform acceleration typically recorded below 250 g under standardized drop‑test conditions. Retention system strength is verified to exceed 230 N before slippage, ensuring the helmet remains secured during an impact event.
Twelve vents are distributed across the shell, each with a diameter of 12 mm, facilitating estimated airflow of 8 L/s at a cruising speed of 25 km/h. The retention strap is 20 mm wide polypropylene, adjustable from 500 mm to 620 mm circumference via a micro‑ratchet buckle, and incorporates a quick‑release tab for emergency removal.
Incoming polycarbonate pellets undergo melt flow index verification, while EPS blocks are checked for density and cell uniformity. Each production lot receives dimensional inspection of the ponytail opening using calibrated CMM probes, and a statistical sample of helmets is subjected to impact testing to confirm compliance with the target acceleration threshold.
| Parameter | Typical Value | Customizable? |
|---|---|---|
| Shell Material | Polycarbonate | Yes (alternative ABS) |
| Liner Material | EPS (20‑25 kg/m³) | Yes (different densities) |
| Weight (Medium) | 280 g ± 15 g | No (function of size) |
| Size Range (Head Circumference) | 52 cm – 62 cm | Yes (custom molds) |
| Ponytail Opening Height | 45 mm (standard) | Yes (35‑55 mm) |
| Number of Vents | 12 | Yes (8‑16) |
| Vent Diameter | 12 mm | Yes (10‑14 mm) |
| Retention Strap Width | 20 mm | No |
| Strap Adjustability Range | 500 mm – 620 mm | Yes (custom lengths) |
| Impact Standard | EN 1078 (peak < 250 g) | No (baseline) |
Each helmet is placed in a low‑density polyethylene bag (50 µm thickness) to prevent surface abrasion, then packed into a five‑layer corrugated carton measuring 38 × 28 × 22 cm. A standard master carton holds 20 units, with a gross weight of approximately 6.2 kg, facilitating palletization and reducing handling time.
Production typically commences within five working days of receipt of approved artwork and material specifications. The standard lead time for an order of 500–2000 pieces is 20–30 days, depending on selected customization options and current plant capacity.
Can the ponytail opening be resized without compromising safety? Yes, the opening is reinforced with a secondary polymer rib that maintains shell stiffness; size adjustments are performed during mold tooling and are validated through impact testing for each variant.
What information is required before a quotation can be issued? We need the desired shell color(s), logo files in vector format, any non‑standard vent configuration, ponytail opening dimensions, and the target order quantity to calculate tooling and unit costs accurately.
To discuss your specific requirements or request a sample, please contact our sales team.
Request a QuoteThis helmet is engineered to provide certified impact protection while accommodating a ponytail hairstyle, eliminating the need for riders to adjust or remove their hair restraints before riding. The
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