Answer:
The ratchet-fit variant (model 7000 LRX / 7001 LRX) features a rear wheel turn-knob for precise tightening, weighs 398 grams, and is packed 40 units per carton. The slip-fit variant (model 7000L / 7001 L) uses a manual slide mechanism, weighs 390 grams, and is packed 50 units per carton.
Within the Udyogi ULTRAVENT 7000 series, two primary adjustment mechanisms are manufactured:
- Ratchet Fit (7000 LRX / 7001 LRX): Uses an integrated dial knob at the nape of the neck that adjusts the headband circumference between 520 mm and 600 mm while the helmet is being worn. It weighs 398 g and is shipped in master cartons of 40 pieces.
- Slip-Fit (7000L / 7001 L): Employs a pin-and-hole slide buckle system requiring manual preset adjustment before donning. It weighs 390 g and is packaged 50 pieces per carton.
Both models share identical HDPE shell geometry, triple-rib reinforcement, and dual 4-point crown ventilation ports.
