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BILTWELL Bonanza 3/4 Open Face Helmet - View 1

Product Highlights & Commentary

Expert Engineering Analysis

The Bonanza 3/4 Open Face Helmet establishes a definitive standard for classic street riding through its rugged, lightweight injection-molded ABS outer shell. Engineered for the unisex adult rider who prioritizes both heritage aesthetics and modern durability, this helmet features a hand-painted finish available in matte or gloss options that resists the wear and tear of daily urban commuting. The structural integrity is maintained by a robust chassis that supports a wide array of optical accessories, with brow snaps specifically designed to accept all Biltwell and select third-party bubble shields and visors, ensuring that the rider can customize their field of view without compromising the helmet's foundational stability.

Thermal regulation and ergonomic fit are optimized through a fully removable and replaceable comfort liner system that addresses the unique ventilation challenges of open-face designs. The interior features brushed fleece Lycra touch points on both the cheek pads and the chin strap, a material choice specifically selected to absorb and evaporate perspiration, thereby maintaining dryness and reducing friction during extended rides. This breathable architecture is complemented by the helmet's compatibility with communication devices, allowing riders to integrate intercom systems seamlessly without disrupting the precise fit of the removable cheek pads, which can be swapped out to fine-tune the internal volume for individual head shapes.

Impact protection is delivered via an expanded polystyrene (EPS) safety liner that effectively dissipates kinetic energy loads without sacrificing the comfort required for long-duration street riding. The helmet is secured by a rugged, plated steel D-ring neck strap equipped with an adjustment strap end retainer, a mechanical design that ensures consistent tension and secure retention under load. This combination of certified impact-absorbing foam and high-tensile steel hardware provides a reliable safety envelope for street riding, backed by the standard manufacturer warranty that underscores Biltwell’s commitment to the long-term performance and reliability of their protective equipment.

Product Classification

Open Face 3/4 HelmetHELMETS > Open Face Helmets > Open Face 3/4 Helmet

Unit / Package Weight

3.2 lbs (1.45 kg)

Discipline & Application

Helmets & Eyewear

Manufacturer Spotlight:Biltwell Inc.(Est. 2006, Temecula, California, USA)

Ride motorcycles, have fun — Modern classic helmets and custom components engineered in Southern California.

BILTWELL

BILTWELL Bonanza 3/4 Open Face Helmet

MPN: 10015118201|DPN3: 0104-3939|SKU: 3010015118201|UPC: 840258917565|MMW: 0149950000000097503498|Fitment: Not Available

$149.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

Helmets and apparel are sized to human body measurements. View the Official Sizing Guide below.

Select Color: 20TH ANNIVERSARY

Select Size: XS

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyStandard Manufacturer Warranty

BILTWELL Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Key Engineered Features (6)

OEM Technical Standards

Injection-molded ABS outer shell, with hand-painted finish, is rugged yet lightweight
Expanded polystyrene (EPS) safety liner dissipates impact loads without compromising comfort
Removable and replaceable comfort liner and cheek pads feature brushed fleece Lycra touch points to absorb and evaporate perspiration
Rugged, plated steel D-ring neck strap with adjustment strap end retainer
Chin strap features brushed fleece Lycra touch points for comfort
Snaps on brow accept all Biltwell and select other brand bubble shields, visors and optical accessories

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BILTWELL

BILTWELL Pinlock Anti-Fog Insert Lens

BILTWELL

BILTWELL Retro 3-Snap Bubble Face Shield

BILTWELL

BILTWELL Optically Superior Anti-Scratch Face Shield

BILTWELL

BILTWELL Optically Superior Anti-Scratch Face Shield Replacement Service Parts & Hardware

BILTWELL

BILTWELL Shield Base Plate & Ratchet Kit

BILTWELL

BILTWELL LENS OVERLAND CH RVO/BR

BILTWELL

BILTWELL High-Performance Motocross Gloves

BILTWELL

BILTWELL High-Definition Off-Road Goggles

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Factory Technical Reference

Verified Workshop Blueprints & Maintenance Specs

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636cc DOHC Inline-Four

3.6 L 10W-40 | 520 Chain (112L) | 127 N·m Axle

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999cc ProStar DOHC Twin

2.5 qt PS-4 5W-50 | AGL Trans | Demand Drive

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Rotax ACE 900cc Turbocharged

3.5 L 0W-40 | QRS-X CVT | 75W-140 Gearbox

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999cc ProStar 100 HP Twin

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2.2 L 5W-40 | 100 N·m Lug | PRO-TORQ CVT

Verified Technical Reference

Frequently Asked Questions

Consult the authentic option and part number matrix under the Technical Specifications and Fitment tab. You can match the authentic OEM Manufacturer Part Number (MPN) or ride model specifications to confirm exact compatibility.

Photo 1 of 1 | Click to Enlarge

Product Highlights & Commentary

Expert Engineering Analysis

Product Classification

Open Face 3/4 HelmetHELMETS > Open Face Helmets > Open Face 3/4 Helmet

Unit / Package Weight

3.2 lbs (1.45 kg)

Discipline & Application

Helmets & Eyewear

Manufacturer Spotlight:Biltwell Inc.(Est. 2006, Temecula, California, USA)

Ride motorcycles, have fun — Modern classic helmets and custom components engineered in Southern California.

BILTWELL

BILTWELL Bonanza 3/4 Open Face Helmet

MPN: 10015118201|DPN3: 0104-3939|SKU: 3010015118201|UPC: 840258917565|MMW: 0149950000000097503498|Fitment: Not Available

$149.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

Helmets and apparel are sized to human body measurements. View the Official Sizing Guide below.

Select Color: 20TH ANNIVERSARY

Select Size: XS

Proceed to Checkout

Free US ShippingOrders over $150

30-Day ExchangesHassle-free size swap

Manufacturer WarrantyStandard Manufacturer Warranty

BILTWELL Technical Performance & Engineering

Key engineered features, technical highlights, and manufacturer specifications

Authentic Specifications

Key Engineered Features (6)

OEM Technical Standards

Injection-molded ABS outer shell, with hand-painted finish, is rugged yet lightweight
Expanded polystyrene (EPS) safety liner dissipates impact loads without compromising comfort
Removable and replaceable comfort liner and cheek pads feature brushed fleece Lycra touch points to absorb and evaporate perspiration
Rugged, plated steel D-ring neck strap with adjustment strap end retainer
Chin strap features brushed fleece Lycra touch points for comfort
Snaps on brow accept all Biltwell and select other brand bubble shields, visors and optical accessories

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BILTWELL

MPN	10015118201
DPN3	0104-3939
SKU	3010015118201
UPC	840258917565
MMW	0149950000000097503498
Selected Option / Variant	HELMET BONANZA DOT 20TH ANNIVERSARY XS
Package Shipping Weight	3.2 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Size	XS, S, M, L, XL, 2XL
Type	Open Face
Model	Bonanza 3/4 Open Face Helmet
Packaging Units	Each
Finish	Matte, Gloss
Gender	Unisex
Graphic	Solid
Warranty Coverage	Standard Manufacturer Warranty
Base Color	Black
Size Group	Adult
Trim Color	Black, Chrome
Color / Finish	Black, Flat, Gloss
Model Series	Bonanza
Product Type	Helmet
Riding Discipline / Style	Street
Shell Material	ABS
Engineered Features	Removable Cheek Pads, Removable Liner
Peak Visor Compatibility	Compatible
Communicator Compatibility	Compatible

MPN	10015118201
DPN3	0104-3939
SKU	3010015118201
UPC	840258917565
MMW	0149950000000097503498
Selected Option / Variant	HELMET BONANZA DOT 20TH ANNIVERSARY XS
Package Shipping Weight	3.2 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Size	XS, S, M, L, XL, 2XL
Type	Open Face
Model	Bonanza 3/4 Open Face Helmet
Packaging Units	Each
Finish	Matte, Gloss
Gender	Unisex
Graphic	Solid
Warranty Coverage	Standard Manufacturer Warranty
Base Color	Black
Size Group	Adult
Trim Color	Black, Chrome
Color / Finish	Black, Flat, Gloss
Model Series	Bonanza
Product Type	Helmet
Riding Discipline / Style	Street
Shell Material	ABS
Engineered Features	Removable Cheek Pads, Removable Liner
Peak Visor Compatibility	Compatible
Communicator Compatibility	Compatible