Biltwell Bonanza Spectrum Helmet
Some people prefer the winds of freedom to hit them squarely in the face. If that’s your style, Bonanza’s your helmet. US DOT-certified for safety. Lightweight and generously padded for comfort.
Technical Details:
- Injection-molded ABS outer shell is rugged yet lightweight—the best combination of features for a motorcycle helmet
- Expanded Polystyrene (EPS) safety liner dissipates impact loads without compromising comfort
- Snaps on brow accept all Biltwell and select other brand bubble shields, visors and optical accessories
- Removable/replaceable comfort liner and cheek pads feature brushed fleece Lycra touch points to absorb and evaporate perspiration
- Chin strap features brushed fleece Lycra touch points for comfort and an adjustable strap end retainer
- Complies to US DOT safety standards
Helmet Fit:
- No two helmet models from different manufacturers will fit identically on the same wearer’s head. For this reason, please refer to our sizing chart and follow our fitment instructions carefully before merely ordering a new helmet in the same size as the one you’re currently wearing.
Share this page on Twitter!
View Larger ImagesCheck out these similar products:
Sizing Information
| Size | Head (inches) | Head (cm) | Hat Size |
| XS | 20 7/8 – 21 3/8 | 53-54.25cm | 6 5/8 – 6 7/8 |
| Small | 21 1/2 – 22 | 54.5-55.75cm | 6 7/8 – 7 1/8 |
| Medium | 22 1/8 – 22 5/8 | 56-57.25cm | 7 1/8 – 7 3/8 |
| Large | 22 3/4 – 23 1/4 | 57.5-58.75cm | 7 3/8 – 7 5/8 |
| XL | 23 3/8 – 23 7/8 | 59-60.25cm | 7 5/8 – 7 7/8 |
| XXL | 24 – 24 1/2 | 60.5-61.75cm | 7 7/8 – 8 1/8 |
This sizing chart is based on information provided to us by Biltwell Helmets and is subject to change without notice, although we will do our very best to keep it up to date. We recommend that you measure your head by wrapping a cloth tape measure around your head about 1 inch or 2.5 cm above your eyebrows, which should be the largest portion of your head. Choose the helmet that is closest to your measured head size. If you fall between two sizes, choose the smaller of the two. You want a helmet to fit snug without being uncomfortable.
External Links for Fit Help:
Find the best helmet models for your head shape and size: LidPicker.com
