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HJC offers its top-of-the-range modular motorcycle helmet, the RPHA 91:
Safety:
Premium Integrated Matrix made from carbon-aramid hybrid fibers and natural fibers, offering enhanced performance in terms of impact resistance, lightness and comfort
Quick-release system for emergency removal of cheek foams
Chinstrap closure with micrometric buckle
Modularity:
Articulated pivot chinstrap reduces wind noise and air drag in a slim, compact helmet
Articulated chin cover for improved helmet handling
Hidden locking system reduces wind noise and air drag
chinstrap lock, locks and releases the chinstrap in the open position, for safe riding with the chinstrap open
Chinstrap that retracts when the helmet is in the open position to facilitate donning and reduce wind resistance