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◀ Royal M139 Retro Motorcycle Helmets ▶ 📦 VIEW ON AMAZON: --------------------------------------------------------------------------------------------------------------------------- The M139 helmet's design is attractive, mature, and sophisticated. M139 is suitable for all motorcyclists who want an elegant and safe product. The M139 open-face helmet is the most choice for young and classic adults. Royal M139 3/4 helmet is equipped fully for short trips or city tours. The visor is anti-scratch, nonbreakable, ensures wide-angle view, UV protection, anti-fog and reduces misting. The visor is designed to cover the chin to block wind and dust. Wearing an M139 helmet, Biker is always comfortable with 3 ventilation positions This is a rough guide and NOT EXACT. The shape of your head is as important as the measurement you take, which may affect the final fit! The following sizes are an approximation and are based on average head sizes. In some
