Biltwell Bonanza 3/4 Helmet Flat Black
ECE R22.05
A timeless classic retro style open face helmet.
If feeling the wind in your face is what you are after, Bonanza is your helmet.
Ride with goggles or snap on an optional Bubble Shield.
- Injection-molded ABS outer shell is rugged yet lightweight
- 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
For sizing information, see the Sizing Tab
Bonanza DOT Helmet
Size | Centimeter | Inches
XS | 53 - 54.25 | 20 7/8 - 21 3/8
Small | 54.5 - 55.75 | 21 1/2 - 22
Medium | 56 - 57.25 | 22 1/8 - 22 5/8
Large | 57.5 - 58.75 | 22 3/4 - 23 1/4
XL | 59 - 60.25 | 23 3/8 - 23 7/8
2XL | 60.5 - 61.75 | 24 - 24 1/2
Cheek Pads can be exchanged for fit fine tuning.
Bonanza cheek pads are available in 16mm, 21mm, 25mm, 29mm, 33mm and 38mm
Bonanza DOT Stock Cheek Pads
XS - 33mm
Small - 29mm
Medium - 25mm
Large - 29mm
XL - 25mm
XXL - 21mm
Proper Fit
Never buy a used helmet or borrow someone else’s helmet. Over time the protective foam in helmets will adjust to the contours of a user’s head. Or it could already have been in a crash
A used or borrowed helmet may not offer as much protection as a new helmet.
Wearing the wrong size helmet can increase your risk of serious injury or death in an accident. A helmet that is too large for your head may be dislodged or knocked off in an accident. To select the right size helmet for your head, follow these instructions:
Measure your head. Wrap a tape measure around your head above your eyebrows.
Use the sizing chart above to select the helmet size that corresponds most closely to your head measurement. If your head size falls between two helmet sizes, try on the larger helmet first and then the smaller size.
Try on the helmet by grasping both chin straps to pull the helmet completely onto your head, ensuring that the top of your head is in contact with the top of the helmet interior.
Check for a proper fit. To make sure your helmet is the right size, check that:
- The helmet inner lining fits snugly around your head.
- The top pad presses firmly on your head.
- The cheek pads contact your cheeks.
- There is no space around your brow under the inner lining.
