Alpinestars A-4 Roost Guard

The featherweight Alpinestars A-4 Roost Guard is ideal for riders looking for protection without giving up flexibility. The unobtrusive modular design is set up to coordinate with BNS neck braces, has lateral protection for the ribs and offers plenty of adjustability. The performance poly-material blend is optimized for flexibility, breathability, and weight savings.


  • Front and back hard shell guards constructed from a performance poly-material blend for optimized flexibility and excellent weight saving
  • Front shell CE certified EN 14021 (stone shield)
  • Back protector CE certified EN 1621-2:2014 level 1
  • Shells are perforated for maximum breathability and cooling ventilation, perfect for those hot dusty track rides
  • Adjustable kidney elastic strap incorporates thermoformed perforated rib protection panels for high levels of protection without compromising movement
  • Kidney closure system has quick and easy-to-use buckles
  • Soft bio-foam padded chassis for optimized levels of comfort and close-to-the-body fit
  • Modular design optimized for use with BNS neck braces
  • Removable upper back padded panel for BNS neck support compatibility
  • Soft touch BNS puller for easy and safe engagement of the BNS
  • Removable and adjustable shoulder pads for size regulation with integrated BNS puller
  • Additional thermoformed EVA tail extension for extended coverage to the tailbone area
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Product Style Item # Manufacturer Product # Availability
White/Black/Red / XS-SM 1156595 6701517-213-XSS Available: Requires 1-3 business days of lead time prior to shipment
White/Black/Red / MD-LG 1156596 6701517-213-ML Available: Requires 1-3 business days of lead time prior to shipment
White/Black/Red / XL-2XL 1156597 6701517-213-XL2 Out of Stock