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BILTWELL Aerodynamic Rear Helmet Spoiler - View 1

Product Highlights & Commentary

Expert Engineering Analysis

Precision-engineered aerodynamic integration defines the structural role of this Biltwell Lane Splitter replacement spoiler. Crafted specifically for the Lane Splitter platform, this one-size component is not merely an aesthetic add-on but a critical functional element of the helmet's external architecture. The unit is designed to interface seamlessly with the existing chin bar geometry, ensuring that the replacement part maintains the original manufacturer’s intended airflow dynamics without requiring complex modifications or non-standard hardware.

Targeted wind redirection fundamentally alters the internal acoustic and thermal environment for street riding. By physically intercepting the high-velocity air stream that typically rushes in from beneath the chin bar, this spoiler actively mitigates the turbulent eddies responsible for excessive wind noise and unwanted draft. This aerodynamic intervention creates a more stable pressure zone within the helmet cavity, reducing the "whoosh" effect at speed and preventing cold air from directly impacting the rider's face, thereby enhancing overall comfort during extended street commutes or highway cruising.

Mechanical fidelity to OEM specifications ensures consistent performance and safety compliance. As a direct replacement part, this black-finished spoiler adheres to the exact dimensional tolerances required for the Lane Splitter, guaranteeing a secure fit that does not compromise the structural integrity of the helmet shell. The standard manufacturer warranty underscores Biltwell’s commitment to the longevity of this component, providing riders with the confidence that their aerodynamic setup remains optimized and safe, preserving the helmet's original performance characteristics against the elements.

Product Classification

Helmet Liner & Cheek PadsHELMETS > Cheek Pads, Liners & Hardware > Helmet Liner & Cheek Pads

Unit / Package Weight

0.05 lbs (0.02 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 Aerodynamic Rear Helmet Spoiler

MPN: 00040500100|DPN3: 0134-2284|SKU: 3000040500100|UPC: Not Available|MMW: 0009950000000006003970|Fitment: Not Available

$9.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

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

Select Size: Standard

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

Safety & Protection (4)

OEM Technical Standards

The unit is designed to interface seamlessly with the existing chin bar geometry, ensuring that the replacement part maintains the original manufacturer’s intended airflow dynamics without requiring complex modifications or non-standard hardware.
Targeted wind redirection fundamentally alters the internal acoustic and thermal environment for street riding.: By physically intercepting the high-velocity air stream that typically rushes in from beneath the chin bar, this spoiler actively mitigates the turbulent eddies responsible for excessive wind noise and unwanted draft.
This aerodynamic intervention creates a more stable pressure zone within the helmet cavity, reducing the "whoosh" effect at speed and preventing cold air from directly impacting the rider's face, thereby enhancing overall comfort during extended street commutes or highway cruising.
The standard manufacturer warranty underscores Biltwell’s commitment to the longevity of this component, providing riders with the confidence that their aerodynamic setup remains optimized and safe, preserving the helmet's original performance characteristics against the elements.

Materials & Construction (2)

OEM Technical Standards

Precision-engineered aerodynamic integration defines the structural role of this Biltwell Lane Splitter replacement spoiler.: Crafted specifically for the Lane Splitter platform, this one-size component is not merely an aesthetic add-on but a critical functional element of the helmet's external architecture.
Mechanical fidelity to OEM specifications ensures consistent performance and safety compliance.: As a direct replacement part, this black-finished spoiler adheres to the exact dimensional tolerances required for the Lane Splitter, guaranteeing a secure fit that does not compromise the structural integrity of the helmet shell.

Additional Features & Specifications (8)

OEM Technical Standards

Replacement chin spoiler for Biltwell Lane Splitter helmets
This replacement part is a simple element that reduces wind noise and airflow inside the helmet by redirecting the wind that normally rushes into the helmet from under the chin bar.
Precision-engineered aerodynamic integration defines the structural role of this Biltwell Lane Splitter replacement spoiler.** Crafted specifically for the Lane Splitter platform, this one-size component is not merely an aesthetic add-on but a critical functional element of the helmet's external architecture
The unit is designed to interface seamlessly with the existing chin bar geometry, ensuring that the replacement part maintains the original manufacturer’s intended airflow dynamics without requiring complex modifications or non-standard hardware
Targeted wind redirection fundamentally alters the internal acoustic and thermal environment for street riding.** By physically intercepting the high-velocity air stream that typically rushes in from beneath the chin bar, this spoiler actively mitigates the turbulent eddies responsible for excessive wind noise and unwanted draft
This aerodynamic intervention creates a more stable pressure zone within the helmet cavity, reducing the "whoosh" effect at speed and preventing cold air from directly impacting the rider's face, thereby enhancing overall comfort during extended street commutes or highway cruising
Mechanical fidelity to OEM specifications ensures consistent performance and safety compliance.** As a direct replacement part, this black-finished spoiler adheres to the exact dimensional tolerances required for the Lane Splitter, guaranteeing a secure fit that does not compromise the structural integrity of the helmet shell
The standard manufacturer warranty underscores Biltwell’s commitment to the longevity of this component, providing riders with the confidence that their aerodynamic setup remains optimized and safe, preserving the helmet's original performance characteristics against the elements

End of Product Information

Complete Your Setup

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Factory Technical Reference

Verified Workshop Blueprints & Maintenance Specs

Explore All 122 Verified Workshop Platforms →

Servicing your machine? Cross-reference factory torque values, fluid capacities, chain pitches, and tire pressures directly from certified workshop service manuals before installation.

Harley-Davidson · 2017–2024

Road Glide / Street Glide M8

Milwaukee-Eight 107/114/117ci

4.0 qt 20W-50 | Formula+ Primary | 80W-140 Trans

Yamaha · 2020–2025

Ténéré 700 (T7)

689cc CP2 Crossplane Twin

2.6 L 10W-40 | 525 Chain | 90/90-21 & 150/70R18

Honda · 2020–2025

CRF1100L Africa Twin

1084cc Unicam Parallel Twin

4.0L Manual / 4.2L DCT | SILMAR8A9S Iridium

Kawasaki · 2019–2025

Ninja ZX-6R (636)

636cc DOHC Inline-Four

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

Polaris · 2019–2025

RZR XP 1000 / XP 4

999cc ProStar DOHC Twin

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

Can-Am · 2018–2025

Maverick X3 Turbo / Turbo R

Rotax ACE 900cc Turbocharged

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

Polaris · 2018–2025

General 1000 / XP 1000

999cc ProStar 100 HP Twin

2.5 qt PS-4 5W-50 | 122 N·m Lug | AGL Gearcase

Can-Am · 2020–2025

Defender HD10 / MAX

Rotax 976cc V-Twin 82 HP

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

Helmet Liner & Cheek PadsHELMETS > Cheek Pads, Liners & Hardware > Helmet Liner & Cheek Pads

Unit / Package Weight

0.05 lbs (0.02 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 Aerodynamic Rear Helmet Spoiler

MPN: 00040500100|DPN3: 0134-2284|SKU: 3000040500100|UPC: Not Available|MMW: 0009950000000006003970|Fitment: Not Available

$9.95

Available

RIDER SIZING SPECIFICATION | Human Body & Headform Sizing

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

Select Size: Standard

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

Safety & Protection (4)

OEM Technical Standards

The unit is designed to interface seamlessly with the existing chin bar geometry, ensuring that the replacement part maintains the original manufacturer’s intended airflow dynamics without requiring complex modifications or non-standard hardware.
Targeted wind redirection fundamentally alters the internal acoustic and thermal environment for street riding.: By physically intercepting the high-velocity air stream that typically rushes in from beneath the chin bar, this spoiler actively mitigates the turbulent eddies responsible for excessive wind noise and unwanted draft.
This aerodynamic intervention creates a more stable pressure zone within the helmet cavity, reducing the "whoosh" effect at speed and preventing cold air from directly impacting the rider's face, thereby enhancing overall comfort during extended street commutes or highway cruising.
The standard manufacturer warranty underscores Biltwell’s commitment to the longevity of this component, providing riders with the confidence that their aerodynamic setup remains optimized and safe, preserving the helmet's original performance characteristics against the elements.

Materials & Construction (2)

OEM Technical Standards

Precision-engineered aerodynamic integration defines the structural role of this Biltwell Lane Splitter replacement spoiler.: Crafted specifically for the Lane Splitter platform, this one-size component is not merely an aesthetic add-on but a critical functional element of the helmet's external architecture.
Mechanical fidelity to OEM specifications ensures consistent performance and safety compliance.: As a direct replacement part, this black-finished spoiler adheres to the exact dimensional tolerances required for the Lane Splitter, guaranteeing a secure fit that does not compromise the structural integrity of the helmet shell.

Additional Features & Specifications (8)

OEM Technical Standards

Replacement chin spoiler for Biltwell Lane Splitter helmets
This replacement part is a simple element that reduces wind noise and airflow inside the helmet by redirecting the wind that normally rushes into the helmet from under the chin bar.
Precision-engineered aerodynamic integration defines the structural role of this Biltwell Lane Splitter replacement spoiler.** Crafted specifically for the Lane Splitter platform, this one-size component is not merely an aesthetic add-on but a critical functional element of the helmet's external architecture
The unit is designed to interface seamlessly with the existing chin bar geometry, ensuring that the replacement part maintains the original manufacturer’s intended airflow dynamics without requiring complex modifications or non-standard hardware
Targeted wind redirection fundamentally alters the internal acoustic and thermal environment for street riding.** By physically intercepting the high-velocity air stream that typically rushes in from beneath the chin bar, this spoiler actively mitigates the turbulent eddies responsible for excessive wind noise and unwanted draft
This aerodynamic intervention creates a more stable pressure zone within the helmet cavity, reducing the "whoosh" effect at speed and preventing cold air from directly impacting the rider's face, thereby enhancing overall comfort during extended street commutes or highway cruising
Mechanical fidelity to OEM specifications ensures consistent performance and safety compliance.** As a direct replacement part, this black-finished spoiler adheres to the exact dimensional tolerances required for the Lane Splitter, guaranteeing a secure fit that does not compromise the structural integrity of the helmet shell
The standard manufacturer warranty underscores Biltwell’s commitment to the longevity of this component, providing riders with the confidence that their aerodynamic setup remains optimized and safe, preserving the helmet's original performance characteristics against the elements

End of Product Information

Complete Your Setup

Frequently Paired Accessories & Tools

BILTWELL

MPN	00040500100
DPN3	0134-2284
SKU	3000040500100
UPC	Not Available
MMW	0009950000000006003970
Selected Option / Variant	CHIN SPOILER L/S BLK
Package Shipping Weight	0.05 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Size	One Size
Type	Helmet
Model	Aerodynamic Rear Helmet Spoiler
Packaging Units	Each
Warranty Coverage	Standard Manufacturer Warranty
Base Color	Black
Compatible Motorcycle Models	Lane Splitter
Size Group	Adult
Color / Finish	Black
Product Type	Chin Spoiler
Riding Discipline / Style	Street

MPN	00040500100
DPN3	0134-2284
SKU	3000040500100
UPC	Not Available
MMW	0009950000000006003970
Selected Option / Variant	CHIN SPOILER L/S BLK
Package Shipping Weight	0.05 lbs
Shipping Box Dimensions	Not Available
Freight Classification Code	SFR
Size	One Size
Type	Helmet
Model	Aerodynamic Rear Helmet Spoiler
Packaging Units	Each
Warranty Coverage	Standard Manufacturer Warranty
Base Color	Black
Compatible Motorcycle Models	Lane Splitter
Size Group	Adult
Color / Finish	Black
Product Type	Chin Spoiler
Riding Discipline / Style	Street