At 4SR, we know that a perfectly fitted racing suit is essential for every rider. That’s why we customize each suit to match the individual needs and unique physical proportions of every racer. Whether you have a specific color scheme in mind, need sponsor logos, names, numbers, or fully personalized designs, we can bring your vision to life.

Our custom suits can be tailored with high-quality printed logos, sewn leather logos, embroidery, or laser-burning techniques, ensuring exceptional detail, durability, and style on the track.

Before placing an order, please contact us at sales@4sr-leathers.com.au to receive more information and a personalized design preview tailored to your style. We’re excited to collaborate with you and create the ultimate racing suit.

Custom suit pricing: AUD $2,300 – $3,500, depending on design complexity and materials used.

Check out our videos where 4SR racers share why they compete in the British Supersport Championship and why they choose 4SR leathers. Watch in the video tab below!

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 colors
• 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.