WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Alpinestars A1 Roost Deflector

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Alpinestars A1 Motorcycle Roost Deflector Review
Alpinestars A1 Motorcycle Roost Deflector Review
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Q & A

Have a product related question about fit, features, or functionality? Ask it here.

If you have a question about availability or need immediate assistance, call 1-800-841-2960.

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Alpinestars A1 Roost Deflector

Shipping & Returns

Orders $100 and over qualify for our free shipping offer. See our full shipping policy for further shipping details.

Return any new, unused and unaltered item within 30 business days. Create a return label online for as little as $7.99. Please read our return policy.


  • Hard shells are constructed form a high performance polymeric material blend for optimized flexibility and light weight
  • Shells are highly perforated for maximum air ventilation
  • Removable upper back padded panel
  • Soft touch BNS puller for engagement of the Alpinestars BNS (Bionic Neck Support)
  • Removable, adjustable shoulder pads for size regulation with integrated BNS puller
  • Adjustable elastic strap system with easy to use buckle closures
  • Integrated Y-strap system for modular use of back protectors
  • C.E. EN 14021:2003 certified (stone shield)

Alpinstars Chest Protectors

Chest Circumference (in) 34.6 - 38.5 38.5 - 42.5 42.5 - 46.5
Torso Height (in) 15 - 17 17 - 18.9 18.9 - 20
Height (in) 57.5 - 64.5 64.5 - 71.7 71.7 - 76.5
Chest Circumference (cm) 88 - 98 98 - 108 108 - 118
Torso Height (cm) 38 - 43 43 - 48 48 - 51
Height (cm) 146 - 164 164 - 182 182 - 194

General Sizing Information

If you are unsure about your size, compare your body measurements to the charts provided to determine the correct fit. These charts will give you a good idea of the size to order, but be sure to read special sizing information that may accompany an item description. Some merchandise dimensions may vary from the averages charted here.

Chest Circumference

Measure around the fullest part of the chest, under the armpits, keeping the measuring tape horizontal.

Torso Height

Measure the vertical distance from the natural waist line to the shoulder.


Stand against the wall, ask someone to measure from the floor to the top of your head, keeping the measuring tape vertical.


Age & Gender
Model Name for Gear

Item Numbers

Details Item Number Availability Store Pickup
Details:Black/Anthracite  M/L Item #020-6700116-104-ML Availability:In stock: Ready to shipStore Pickup:Available
Details:Black/Anthracite  XL/XXL Item #020-6700116-104-XL2 Availability:In stock: Ready to shipStore Pickup:Available
Details:White/Black/Red  XL/XXL Item #020-6700116-213-XL2 Availability:In stock: Ready to shipStore Pickup:Available
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov


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