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O'Neal

O'Neal Sierra II Helmet Black/Grey / XL [Blemished - Good]

Item: P1204306
Customer rating is 4.5 out of 5 stars. Read 59 Reviews Write a Review
Current price is $143.99
was
$179.99
you
Save $36.00 20%
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Color: Black/Grey Select a Color
Size: XL Select a Size

O'Neal Helmet Sizing

Helmet Size Head Measurement (cm)
XS 53-54
SM 55-56
MD 57-58
LG 59-60
XL 61-62
2XL 63-64
3XL 65-66

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

  • H Head

    Wrap a cloth measuring tape around your head just above your eyebrows and ears. Pull the tape comfortably snug, read the length, repeat for good measure and use the largest measurement.

Blemished/Refurbished

This item is available as a Blem/Refurb. These are items that cannot be sold as "New" merchandise and are limited to stock on hand. See the product details for a description of the product's condition.

Members get up to $22.20 in total value with this purchase.

Ships Free to Cycle Gear Stores!

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The Cycle Gear Difference
Helmet shape is Intermediate Oval
Shape: Intermediate Oval
What's this?Read more about helmet dimensions, shapes and weight

Item Condition: This is a new item that is missing the original packaging, or the packaging has been opened. Tags, manuals, or installation instructions may be missing, however the item is fully functional. - MFG: 05/2026

O'Neal Sierra II Helmet

O'Neal Sierra II Helmet, featuring polycarbonate/ABS construction, is designed for more aggressive adventure riding and varying terrain. The Sierra II Helmet includes an integrated face shield and a shorter peak visor for more diverse functionality.

Features:

  • Polycarbonate/ABS Shell construction
  • Moisture wicking, removable/washable air channeled comfort liner
  • Vent holes for optimal ventilation
  • Integrated face shield
  • Height adjustable helmet shield
  • Padded chin strap with double-d safety lock
  • Meets DOT safety standards
Read More
Product Style Item # Store SKU Manufacturer Product # Availability
Product Style Black/Grey / XL Item # 10632701 Store SKU Manufacturer Product # 2525986 Availability Only 1 Left: Ships within 24 hours
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