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HJC

HJC C91 Nepos

HJC C91 Nepos

0847-1321-03

$229.99
$229.99
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HJC C91 Nepos

The HJC C91 Nepos delivers modular convenience, lightweight comfort, and reliable airflow for everyday riding.

Built around an Advanced Polycarbonate Composite Shell with an adjustable polycarbonate chinbar, the C91 Nepos features HJC’s “ACS” Advanced Channeling Ventilation System, a Pinlock-ready HJ-17 shield with 95% UV protection, and a RapidFire™ shield replacement system for quick, tool-less changes. Inside, the SuperCool interior and removable/washable pads help keep the helmet feeling fresh, while glasses grooves and speaker pockets add everyday practicality.

Key Features

  • Advanced Polycarbonate Composite Shell with adjustable polycarbonate chinbar
  • “ACS” Advanced Channeling Ventilation System with 1 top vent and 1 lower vent
  • Full front-to-back airflow to help flush heat and humidity up and out
  • Pinlock-ready HJ-17 shield with 95% UV protection
  • RapidFire™ shield replacement system for ultra-quick, tool-less shield changes
  • SuperCool interior with enhanced moisture-wicking function
  • Crown and cheek pads are removable and washable
  • Cheek pads are interchangeable throughout all shell sizes
  • Micro buckle retention system
  • Glasses grooves to accommodate eyeglasses and sunglasses
  • Speaker pockets for Bluetooth communication
  • Includes nose guard and chin curtain

Designed for daily use, the C91 Nepos combines the versatility of a modular helmet with comfort-focused details that support longer rides, commutes, and changing conditions.

Available Options

  • Colors: Nepos MC-21, Nepos MC-3HSF, Nepos MC-5, Nepos MC-8SF
  • Sizes: X-Small, Small, Medium, Large, X-Large, XX-Large, 3X-Large, 4X-Large, 5X-Large

Resources

An owner’s manual is available for this product and may include setup, sizing, care, and helmet feature information.

A sizing reference chart is also available to help you choose the right size.

Shop the HJC C91 Nepos and more HJC helmets and riding gear with All American KTM, a nationwide retailer for HJC products.

HJC C91 Nepos Owner’s Manual & Product Guide

View or download the official product manual for the HJC C91 Nepos. This guide may include important information about helmet features, fitment, care, use, safety details, replacement parts, and product-specific instructions.

✔ Download HJC C91 Nepos Manual
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⚠️ WARNING: This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. Learn more.