The one-piece Racing Diablo II AR suit is a tool for anyone who wants to experience the devilish power of motorcycle sport. Not only does it look great and perfectly matches all "hellish" machines, but the red and dark silver details also symbolize the passion for speed and adrenaline. Nevertheless, the Racing Diablo II AR is not just about looks, it has a perfectly thought-out cut that ensures comfort even during long and intense rides. Obviously, it includes the patented reinforced 4SR seam, which ensures that in the event of a fall, your own skin stays intact. With perfect ventilation, you won’t feel like you're on fire even when riding the city streets.

AR suits from 4SR are fully compatible with various airbag systems, this is made possible by the connecting flex panels in the back and hip areas and a visible LED indicator on the forearm. And the best part? The quality of materials and stitching is exactly the same as what 4SR riders use in world championship races. If you take motorcycling seriously, the Racing Diablo II AR is the suit of choice that will protect you on every road!

"WE DON’T PRODUCE BASIC, CHEAP STRIPPED-DOWN MODEL LINE SUITS"

Top quality for all riders = 4SR FAIR PLAY

With a one-piece 4SR suit, you’ll be geared up for the track in minutes. The price includes not only sliders and standard protectors, but also a chest and back protector, dual hip and tailbone protectors – all from reputable brands. 4SR suits include a system of 18 ergonomically placed protectors – the highest number of protectors in a mass-produced suit ever.

The one-piece Racing Diablo AR Airbag Ready® suit is equipped with a hollow hump that can hold a camelbag. Its shape and the design of the suit’s back side are ideal for customization. If you’d like to personalize your suit with custom leather logos — including your name, racing number, or sponsor branding — get in touch with us at sales@4sr-leathers.com.au. We’re here to make it yours!

If you’ve ever experienced the problem of an unzipped suit sliding below your butt when walking around the paddock – we’ve solved this for you. One-piece suits have a small snap button on the inner side of the main zipper flap to hold the zipper pull in place.

          YOU CAN SCRAPE YOUR ELBOW WHILE LEANING        

The suit is equipped with Elbow down TECH elbow sliders. These are available in several colors. This suit includes 1 pair of red sliders, and more can be purchased separately.

Every ride starts with the right choice. However, safety is not a choice – it’s self-respect.

RESPECT YOURSELF, CHOOSE QUALITY!

Standard equipment of the Racing Diablo II Airbag Ready® suit includes:

• Class AAA according to EN 17092:2020, the highest level of protection
• 1.2 mm thick cowhide leather / black, anthracite grey, red /
• 4SR Elbow down TECH – replaceable elbow sliders
• Pre-curved shoulders and carefully cut sleeves allow perfect riding posture
• Top-quality Betac protectors on shoulders, elbows, and knees certified to EN 1621-1:2012
• YKK & OPTI zippers
• Full perforation of front panels, localized perforation on arms, sides, and thighs
• 3D lining
• Extensive aramid stretch for maximum mobility
• Flexible leather panels without restrictive seams
• Hollow aerodynamic hump suitable for a hydrobag
• Use of triple seams; in high-stress areas, patented 4x stitched 4SR safety seam is used
• Sleeve cuffs made of soft aramid stretch
• Comfort-designed collar
• Includes chest and back protector (both must be removed when using an airbag system!)
• Includes knee sliders
• Airbag system not included
• AR suit is compatible with In&motion and Alpinestars Tech-Air® airbag systems
• Suit can be optionally fitted with an airbag data cable and LED indicators
• AR Airbag Ready® is a registered trademark with the Industrial Property Office of the Czech Republic

What does 4SR offer that others don’t?

• Suit is fully equipped with race-grade protectors, including chest and back protectors
• Aramid stretch in armpits and crotch is seamless
• Hidden pocket inside the suit for a LapTimer
• When the zipper snap is fastened, an unzipped suit won’t slide below the butt
• High-wear zones are joined by patented double seam 4SR, stitched 4x!
• 4SR suits have double-layer leather on elbows, shoulders, hips, and seat area
• 4SR leather has been tested by Eurofins Textile Testing Spain and certified to EN 17092:2020, receiving the AAA safety rating

Got questions? Contact us.

4SR - Racing Inferno Airbag Ready Motorcycle Suit 

Ultimate Protection & Performance

The 4SR Racing Inferno AR one-piece motorcycle suit is engineered for riders who demand uncompromising safety, comfort, and performance.

Crafted from premium 1.2mm cowhide leather, it integrates 21 strategically placed protectors, ensuring maximum impact resistance.

Designed to be Airbag Ready, it seamlessly pairs with leading In&Motion airbag systems like Alpinestars Tech-Air® for enhanced protection.

This suit is packed with high-performance features, including removable chest and back protectors, durable knee and elbow sliders, and double-layered leather reinforcement in high-impact areas (shoulders, elbows, hips, and seat).

Kevlar stretch panels enhance flexibility, while the aerodynamic hollow hump accommodates a Camelbag, keeping you hydrated during intense rides.

Key Features:

• Premium 1.2mm cowhide leather in yellow, fluorescent red, white, and black
• Airbag Ready – Compatible with In&Motion, Alpinestars Tech-Air®
• High-spec Betac protectors (EN 1621-1: 2012 certified) on shoulders, elbows, and knees
• Replaceable elbow sliders – Available in multiple colours
• Kevlar stretch panels – Maximum flexibility & mobility
• Pre-curved sleeves – Optimal riding position for precision control
• 3D mesh lining – Enhanced breathability & temperature regulation
• Seamless stretch panels – Unrestricted movement in the crotch & armpits
• YKK & OPTI zippers – Reliable, smooth operation
• Double 4SR seam stitching – Reinforced durability at high-stress points
• Reflective logos – Increased visibility in low-light conditions

Additional Benefits:

• Zipper Lock System – Keeps the upper part of the suit secure between track sessions
• Aerodynamic hollow hump – Designed to accommodate a Camelbag hydration system
• Certified by TÜV Rheinland® – Proven 11.2-second abrasion resistance in rigorous tests

Trusted by professional racers worldwide, the 4SR Racing Inferno AR is the perfect fusion of safety, comfort, and high-speed performance.

Take your riding experience to the next level with gear designed for champions.

Got questions? Contact us.

Feel the Lightness. Experience the Speed.
The Racing Ultra-Light Grey AR by 4SR is the lightest motorcycle suit in our collection. Engineered with kangaroo leather, it's not only built for speed but also designed for ultimate comfort. Favoured by factory riders for its minimal weight, it helps you stay agile while pushing your limits on the track.

Now Airbag Ready! The suit's accordion stretch panels are designed to work seamlessly with standalone airbags, giving you the flexibility and safety you need on the track. All materials and stitching are crafted to the same high standards as our factory racers' suits, ensuring you get the best in both safety and performance.

Key Features:

• Material: 0.9 mm kangaroo leather / black, fluorescent red, grey /
• Weight: Suit weighs 3.4 kg (5.2 kg with protectors in size 48)
• Protectors: Includes high-quality Betac protectors on shoulders, elbows, and knees, certified to EN 1621-1:2012 standards
• Sliders: Equipped with replaceable 4SR Elbow Down TECH sliders in various colour options (White, Black, Red, Fluorescent Red, Fluorescent Yellow, Green)
• Mobility: Aramid stretch panels in the crotch and armpits for maximum movement
• Comfort: Soft stretch sleeve cuffs and a comfortable collar with reflective logo
• Airbag Compatibility: Compatible with In&motion and Alpinestars Tech-Air® airbag systems (Airbag system not included)
• Extra Features: Hollow aerodynamic hump compatible with the 4SR Hydrobag, 3D bubble mesh lining, maximum perforation in key areas for ventilation, double and triple seams for added durability

This motorcycle suit has been tested and certified for abrasion resistance by TÜV Rheinland® and exceeds industry safety standards, including Level 2 and AAA certification. Ride with confidence in the best gear, made the same way we prepare our factory racing suits.

Got questions? Contact us.

The 4SR Racing Blue AR motorcycle suit offers unmatched safety, comfort, and quality. Crafted from 1.2mm thick cowhide leather, it features 21 ergonomically placed protectors for the highest level of protection. The suit is Airbag Ready, ensuring you can pair it with leading airbag systems to enhance your safety even further.

This one-piece suit includes knee and elbow sliders, internal protectors, and removable chest and back protectors from trusted brands. Double-layered leather on impact zones (elbows, shoulders, hips, and seat) and Kevlar stretch panels provide extra durability and mobility. The hollow aerodynamic hump is designed to fit a Camelbag, ensuring hydration during long rides.

Key Features:

• 1.2mm thick cowhide leather in blue, fluorescent red, white, and black
• Airbag Ready, compatible with In & Motion, Alpinestars Tech-Air®
• Betac high-specification protectors on shoulders, elbows, and knees (EN 1621-1: 2012 certified)
• Replaceable elbow sliders available in various colours
• Kevlar stretch panels for maximum flexibility
• Pre-curved sleeves for optimal riding position
• 3D mesh lining for enhanced breathability
• Seamless stretch for unrestricted movement in the crotch and armpits
• YKK & OPTI zips for reliability
• Double 4SR seam at high-stress points
• Reflective logos for increased visibility

Additional Benefits:

• Zipper Lock System to keep the upper part of the suit out of the way between track sessions
• Hollow hump to accommodate a Camelbag hydration pack
• Tested and certified by TÜVRheinland®, withstanding 11.2 seconds in abrasion resistance tests

Invest in the 4SR Racing Blue AR suit to experience top-tier safety, comfort, and racing performance, trusted by professional racers around the world.

Got questions? Contact us.

Are you searching for a premium racing motorcycle suit designed for optimal protection and comfort? The 4SR Racing Camo AR Airbag Ready® suit is the ultimate choice for professional riders. This one-piece race suit is equipped with 18 ergonomically placed protectors and features accordion stretch panels, allowing it to work seamlessly with standalone airbag vests.

The suit is crafted from 1.2mm thick cowhide, offering excellent durability and protection. Its unique design ensures maximum mobility, thanks to Kevlar stretch panels in key areas. The Racing Camo AR suit includes knee and elbow sliders, removable chest and back protectors, and double hip and coccyx protection—all sourced from top-quality brands. You can also wear your chosen airbag vest underneath for added safety.

Key Features:

• Airbag Ready®: Compatible with standalone airbags like the Alpinestars Tech-Air® system.
• 18 Protectors: Includes chest, spine, knee, and elbow protectors for comprehensive protection.
• Comfort Features: Hollow aerodynamic hump to fit a Camelbak rehydration pack, seamless stretch panels for increased mobility, and flexible leather panels for ultimate comfort.
• Durable Construction: 1.2mm thick cowhide with double seams in high-stress areas and a Level 2 TÜVRheinland® safety rating.
• Innovative Design: Offset shoulders, pre-curved sleeves, and a reflective collar logo for added safety on the track.

What sets the 4SR Racing Camo AR apart:

• Zipper lock system to secure the upper part of your suit between sessions.
• Kevlar stretch underarms and crotch area for enhanced flexibility.
• Hidden pocket for a LapTimer.
• Patented double seams for maximum durability.

Take your safety and comfort to the next level with the 4SR Racing Camo AR. Built to meet the demands of professional racers, this suit offers unmatched protection and performance on the track.

Got questions? Contact us.

A high-performance motorcycle suit designed for serious riders, the 4SR Racing Ultra Light AR is crafted from lightweight kangaroo leather. This suit, favoured by professionals for its reduced weight and superior strength, enhances rider speed and endurance. Now, you too can experience the unparalleled lightness and flexibility offered by our lightest racing suit to date.

Equipped with advanced safety features, this Airbag Ready® suit includes 18 ergonomically placed protectors and is compatible with multiple standalone airbag systems. With accordion stretch panels, pre-curved sleeves, and seamless Aramid stretch for increased movement, it offers superior comfort and freedom during rides.

The Racing Ultra Light AR also features a patented Zipper Lock system, ensuring your suit stays in place during track breaks. Available in a striking black, fluorescent red, and grey colourway, this suit combines style with unbeatable functionality.

Key Features:

• Kangaroo leather (0.9 mm thickness) in black, fluorescent red, and grey
• 18 ergonomically placed protectors including chest and back protection (removable)
• Weight: 3.4 kg (5.2 kg with all protectors)
• Elbow down TECH sliders, replaceable and available in multiple colours
• Offset shoulders and pre-curved sleeves for optimal riding posture
• YKK & OPTI zippers for durability and ease of use
• Maximum perforation in key areas (chest, back, arms, hips) for superior ventilation
• Seamless Aramid stretch panels for improved flexibility and comfort
• Aerodynamic speed hump, designed to fit the 4SR Hydrobag hydration system
• Double and triple seams in stress areas for enhanced durability
• Reflective logos for increased visibility
• Airbag Ready® compatible with In&motion and Alpinestars Tech-Air® systems

Got questions? Contact us.

Are you after a premium racing suit that works perfectly with your standalone airbag vest? The Racing Diablo AR Airbag Ready® leathers offer the ultimate in safety and comfort. Featuring our latest design, this 1-piece suit includes all the safety elements you'd expect from 4SR, plus expanded accordion stretch panels for seamless use with standalone airbag vests.

We've collaborated with professional racers to bring you our safest, most comfortable racing suit yet. The Racing Diablo AR includes 18 ergonomically placed protectors. By removing the 4SR Level 2 back and chest protectors, you can wear your airbag vest underneath—quick, easy, and you're Airbag Ready!

Key Features:

• Accordion stretch panels for multiple airbag vest compatibility.
• 18 ergonomically positioned protectors for maximum safety.
• Zipper Lock system holds your leathers in place between track sessions.
• Includes knee and elbow sliders, internal protectors, removable chest and back protectors, and double hip and coccyx protection.

Added Safety:

• Camelbak-compatible hollow hump for hydration during rides.
• Seamless stretch in the crotch and underarm areas for greater movement and flexibility.
• Flexible, comfortable sleeve cuffs.
• Replaceable Elbow down TECH elbow sliders, available in multiple colours.

This suit also features Betac-certified shoulder, elbow, and knee pads, YKK & OPTI zippers, Kevlar stretch panels, and double seams at stress points for extra durability. Reflective logos and a comfortable collar complete the setup.

Got questions? Contact us.

The 4SR Racing Monster Green AR is designed for riders looking for uncompromising safety and flexibility. Made from 1.2mm thick cowhide leather, this suit comes fully equipped with 18 ergonomically placed protectors for the ultimate protection during high-speed rides. Ready for use with any standalone airbag vest, this Airbag Ready® suit allows you to remove the included 4SR Level 2 back and chest protectors to make space for your chosen airbag system, such as the In & Motion Airbag System or Alpinestars Tech-Air®.

Built with a high-strength accordion stretch panel, the Racing Monster Green AR offers freedom of movement while maintaining durability and safety. It includes standard features like elbow down TECH elbow sliders, chest and back protectors, and double hip and coccyx protection from trusted brands.

Key Features:

• Premium 1.2mm cowhide leather in black, fluorescent green, fluorescent red, and gold
• Equipped with Betac shoulder, elbow, and knee protectors, certified to EN 1621-1: 2012 standards
• High breathability with maximum perforation on the chest and local perforations on the arms, hips, and thighs
• Kevlar stretch panels for maximum mobility in key areas such as the crotch, armpits, and behind the knees
• Aerodynamic speed hump with space for a Camelbak hydration pack
• Comfortable cuffs with soft Kevlar stretch for added flexibility
• YKK & OPTI zippers for durability
• Includes certified chest and spine protectors from Sas-Tec
• Compatible with standalone airbag systems (airbag system not included)

This suit has been tested for abrasion resistance at TÜVRheinland® and passed with flying colors, earning a Level 2 safety label. The double 4SR seams at high-stress points ensure extra durability. Whether you're racing on the track or riding on the road, this suit provides maximum safety and comfort.

What Makes 4SR Different:

• 18 ergonomically placed protectors for superior safety
• Double-layer leather on elbows, shoulders, hips, and seat
• Seamless Kevlar stretch under the armpits and crotch
• Includes a hidden pocket for a LapTimer
• Patented double 4SR seams sewn 4x for durability

Got questions? Contact us.

Are you in need of a high-performance racing suit designed to accommodate your standalone airbag vest? You've found it with the Racing Power AR 1PC Airbag Ready® leather race suit, the safest and most comfortable suit from 4SR to date.

The Power AR suit is loaded with 18 ergonomic protectors, designed in collaboration with professional racers. By removing the 4SR Level 2 back and chest protectors, this suit allows easy integration with your chosen airbag vest. The accordion stretch panels are engineered for superior flexibility and comfort, making it compatible with a wide variety of standalone airbag vests. It’s easy, fast, and you’re officially Airbag Ready!

Built for racing, the Power AR is equipped with knee and elbow sliders, internal protectors, removable chest and back protectors, and more. With 18 strategically placed protectors, it's one of the most protective mass-produced 1PC leather suits available today. And with the addition of 4SR’s Zipper Lock system, you can easily hold up your leathers between sessions for maximum convenience.

Key Features:

• Premium 1.2 mm Cowhide Leather: Available in black, white, and grey for a durable and stylish finish.
• Betac Protectors: High-quality protectors on shoulders, elbows, and knees, certified to EN 1621-1: 2012 standards, providing top-level safety.
• Replaceable 4SR Elbow Down TECH Sliders: Designed for high-performance use with easy replacement.
• Pre-Curved Sleeves and Offset Shoulders: For a natural riding position and enhanced comfort on the track.
• Aerodynamic Hump: Hollow design accommodates a Camelbak hydration system for convenience during long races.
• Durable YKK & OPTI Zippers: Trusted for strength and long-lasting performance.
• Maximized Airflow: Strategic perforations in key areas ensure proper ventilation and cooling while riding.
• Kevlar Stretch Panels: Added to high-movement zones for maximum flexibility and comfort.
• Reinforced Double Seams: Extra stitching in high-stress areas for superior durability and abrasion resistance.
• Certified Chest and Spine Protectors: Built-in, removable protectors offer additional safety without sacrificing comfort.
• Zipper Lock System: A convenient feature to hold the upper half of your leathers between track sessions.

Additional Details:

• Compatible with In & Motion and Alpinestars Tech-Air® airbag systems
• Reflective logo on the collar for added visibility
• Knee sliders included

Note: Airbag system not included.

 Got questions? Contact us.

Looking for a high-quality racing suit to accommodate your airbag vest? The Racing Neon AR 1PC Airbag Ready® leather suit is here. Our latest model comes with all the safety features you expect from 4SR, plus extra accordion stretch panels for comfort and compatibility with any standalone airbag vest.

Developed alongside professional racers, the Neon AR is our safest and most comfortable suit yet. It includes 18 ergonomic protectors. For those using airbags, the 4SR Level 2 back and chest protectors can be removed, letting you wear your airbag vest underneath easily. You’re now Airbag Ready!

Thanks to its unique cut and strategically placed stretch panels, the Racing Neon AR is compatible with multiple airbag systems. Our durable stitching and high-quality materials are the same as those used in our factory race suits.

Included in the price:

• Knee and elbow sliders
• Internal protectors
• Removable chest and back protectors
• Double hip and coccyx protection
• All protectors are sourced from top brands, making this one of the safest mass-produced 1PC leather suits on the market.

"We prepare our production suits the same way we prepare our factory racers' suits!"

Other features include:

• Hollow hump to fit your Camelbak hydration pack
• Seamless stretch in key areas for increased mobility
• Flexible, comfortable material on sleeve cuffs
• Zipper lock to hold your leathers in between track sessions
• Elbow TECH sliders in several colours: Black, Red, Fluorescent Red, Fluorescent Yellow, and Green

Standard Equipment Includes:

• • 1.2 mm thick cowhide in black, fluorescent yellow, and red
  • Betac Shoulder, Elbow, and Knee Pads certified to EN 1621-1: 2012
  • YKK & OPTI zippers
  • Maximum perforation in key areas for breathability
  • 3D mesh lining for comfort
  • Kevlar stretch panels for mobility
  • Aerodynamic hump with Camelbak compatibility
  • Double seams in high-stress areas
  • Kevlar sleeve cuffs and comfortable collar
  • Reflective logos for visibility
  • Includes knee sliders
  • Compatible with multiple airbag systems like In & motion and Alpinestars Tech-Air®

Got questions? Contact us.

Girls Ride Too! Using our proven suit design for the female figure, we now offer a complete range of ready-to-wear one-piece suits for women who love track riding.

With years of experience in making women’s racing suits through our custom department, we are thrilled to make these high-quality, race-tested suits available to all. Designed for the modern female racer and track enthusiast, this suit offers world-class protection, mobility, and comfort.

Since 2007, our motorcycle suits have been at the forefront of international championships, including the British Superbike Championship. Exposed to high-impact crashes, these suits are put through the toughest conditions to ensure maximum protection.

Key Features:

• Betac® Protectors: Equipped with 16 ergonomically placed Betac viscoelastic protectors (certified EN 1621-1:2012) to ensure protection in all conditions.
• Full Protective Set: Includes chest and back protectors, knee sliders, and double tailbone protection from the renowned Sas-Tec® brand.
• High Mobility: Seamless Kevlar® stretch panels in key areas such as the crotch and underarms for flexibility and comfort while racing.
• Hollow Hump: Ready to integrate a Camelbak hydration system for long track sessions.
• Comfort Features: Soft Kevlar® fabric at the cuffs, ergonomic collar, and reflective logo for added visibility.

Available in a striking black, white, and fluorescent pink colour combination, this racing suit is designed to deliver performance and style on the track.

Got questions? Contact us.