SR Black Knee Sliders – Reliable Protection for Extreme Riding

The 4SR Black Knee Sliders are made from durable plastic designed to withstand the toughest racing conditions. Providing essential protection for riders who love taking extreme lean angles, these knee sliders ensure safety and longevity, making them a must-have for serious racers.

• Material: High-resistance plastic for long-lasting durability.
• Fit: Universally fits most racing suits.
• Color: Classic black for a sleek, professional look.
• Usage: Perfect for track riders, aggressive leans, and competitive racing.

Ride hard, stay protected with the 4SR Black Knee Sliders.

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The 4SR Chest Protector is designed for riders prioritising safety and comfort. Developed in collaboration with Sas-Tec, this chest protector features advanced viscoelastic material with memory effect. It efficiently absorbs impact and significantly enhances rider safety during crashes, while remaining lightweight and flexible.

This chest protector is loved for its elasticity, ensuring it adapts to your movements without restricting you. It’s so comfortable, you’ll hardly notice it’s there. The Velcro fastener allows for easy attachment to all 4SR racing one-piece suits and RR Evo Edition two-piece suits, giving you both convenience and protection on the road or track.

Key Features:

• Material: Made from advanced viscoelastic material for impact absorption.
• Safety: Memory effect technology that absorbs crash impact to increase safety.
• Design: Lightweight and flexible, adapts to all movements while riding.
• Attachment: Features a Velcro fastening system compatible with 4SR racing and Evo suits.
• Fit: Designed for all 4SR one-piece and two-piece suits for easy integration.

Upgrade your protective gear with the 4SR Chest Protector for a safer and more comfortable riding experience.

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Upgrade or replace the elbow sliders on your 4SR suit with these Elbow Down TECH Sliders. Available in a range of vibrant colours, including Standard Red, Fluorescent Red, Fluorescent Yellow, Green, and more, these sliders provide superior durability and easy replacement.

Key Features:

• Sold in Pairs: Each set includes two elbow sliders.
• Material: Made from thermoplastic polyurethane for excellent wear resistance.
• Easy Replacement: Quick and hassle-free to install.
• Transparent Base Not Included: Only sliders are provided.

Enhance your 4SR suit's performance and appearance with these high-quality replacement elbow sliders.

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The 4SR Fluo Yellow Knee Sliders provide the ultimate in visibility and protection for motorcycle enthusiasts. Designed for high-speed track racing, endurance rides, and aggressive leaning, these sliders offer unmatched performance and durability.

Key Features:

• Material: High-resistance plastic built for long-lasting use.
• Fit: Universally fits most racing suits, making them a versatile addition to any rider’s gear.
• Color: Bright fluorescent yellow for superior visibility on the track, ensuring you stand out even in low-light conditions.
• Usage: Perfect for track racing, aggressive leaning, and endurance rides.

Stay seen and protected with the 4SR Fluo Yellow Knee Sliders, your reliable choice for high-performance motorcycle racing gear.

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The 4SR Insert Back Protector offers superior safety and comfort for riders. Designed to fit all 4SR jackets and suits from 2009 onward, this back protector is crafted from durable and flexible polyurethane with a memory effect that adapts to your body shape, providing maximum protection without compromising comfort.

Certified to EN 1621-2 Level 2, it ensures high-impact protection while being lightweight and easy to insert into the back pocket of your jacket or suit. Ideal for daily commutes and long rides, the 4SR Insert Back Protector gives you peace of mind with its reliable design.

Key Features:

• Material: High-quality elastic polyurethane for durability and flexibility
• Protection: Certified to EN 1621-2 Level 2 for impact protection
• Comfort: Memory effect material molds to your back for custom comfort
• Compatibility: Fits all 4SR jackets and suits from 2009 onwards
• Easy Installation: Insert directly into the back pocket for hassle-free use

Choose the size that matches your jacket to ensure a secure fit. Check the pocket dimensions of older jacket models for compatibility.

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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.

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.

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.

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The 4SR White Knee Sliders are crafted for durability and high resistance, designed for motorcycle racing and extreme riding conditions. Built with high-strength plastic, these knee sliders ensure long-lasting use and are ideal for track riders who demand performance in every lean.

Key Features:

• Material: Made from high-resistance plastic for superior durability.
• Universal Fit: Compatible with most racing suits.
• High Visibility: The white design ensures optimal visibility on the track.
• Performance Ready: Designed for aggressive leans and track racing.
• Durable Design: Built to withstand the demands of high-speed riding.

Stay confident and protected with the 4SR White Knee Sliders, whether you're on the track or pushing your limits on extreme corners.

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.

The Racing Replica Ellison motorcycle suit is built for performance, protection, and durability, tested in the demanding BSB Championship. This suit handles the intense strain and frequent impacts of professional superbike racing, ensuring top-tier safety and comfort on and off the track.

Featuring 18 ergonomically placed protectors, the highest number on any off-the-shelf race suit, the Racing Replica Ellison provides the ultimate in rider protection. We use Betac viscoelastic protectors for the shoulders, elbows, and knees, meeting the EN 1621-1: 2012 certification, including additional protection for high temperatures experienced during summer races.

This 1-piece suit comes ready with all race-day essentials, including a Sas-Tec chest protector, back protector, double hip protectors, and a removable tailbone protector. The suit also features a hollow aerodynamic hump, designed to accommodate a Camelbak hydration pack for those long, intense racing sessions.

Key Features:

• 1.2 mm premium cowhide leather in black, white, and fluorescent yellow for a bold, durable finish
• 18 Betac protectors on shoulders, elbows, and knees (EN 1621-1: 2012 certified), offering maximum protection in the most vulnerable areas
• Replaceable 4SR Elbow Down TECH sliders for customisation and easy maintenance
• Pre-curved sleeves and offset shoulders, designed to provide an optimal riding posture and enhanced comfort
• Hollow aerodynamic hump with integrated space for a Camelbak hydration system
• Durable YKK zippers for long-lasting reliability
• Front perforation and localized perforation on the underarms for enhanced airflow, keeping you cool during hot track days
• Kevlar stretch panels in critical areas for unmatched flexibility and mobility while riding
• Double and triple stitched seams in high-stress areas for enhanced durability and long-term performance
• Sas-Tec chest and back protectors included, ensuring full-body protection for both track and road use
• Zipper Lock system, designed to keep your leathers securely in place during breaks

Additional Features:

• Stylish camo print details, inspired by James Ellison’s McAMS Yamaha racing gear in the British Superbike Championship
• Reflective collar logo for increased visibility in low-light conditions
• Black knee sliders included, offering additional protection during sharp cornering

The Racing Replica Ellison suit combines top-notch protection with a striking design, built for riders who want to push their limits while staying safe and comfortable. With replaceable sliders and extensive Kevlar stretch panels, this suit ensures flexibility, durability, and safety in even the most demanding race conditions.

Got questions? Contact us.

The Racing Replica Smrz Motorcycle Suit is crafted for high-performance riders, inspired by Jakub Smrz’s test suit from the British Superbike Championship (BSB). This men's suit offers unrivaled protection and mobility, engineered to withstand the most demanding race conditions. Made with 1.2 mm premium cowhide leather, it combines durability, comfort, and striking aesthetics for riders who expect nothing less than the best.

Our 4SR suits are designed with 18 strategically placed Betac protectors, providing full protection for shoulders, elbows, and knees. These protectors are certified to EN 1621-1: 2012 standards, ensuring maximum safety and performance in both high and low temperatures.

Key Features:

• Material: 1.2 mm premium cowhide leather available in black, white, and fluorescent red with camo detailing.
• Protection: High-quality Betac protectors for shoulders, elbows, and knees, certified to EN 1621-1: 2012 standards.
• Replaceable Elbow Sliders: 4SR's Elbow Down TECH sliders, available in multiple colours, provide extra versatility and protection.
• Comfort and Mobility: Extensive Kevlar stretch panels strategically placed in the crotch, underarms, and back of the knees allow for maximum flexibility during intense races.
• Aerodynamic Hump: Designed with a hollow space for Camelbak hydration systems, keeping you hydrated while riding.
• Ventilation: Full perforation on the front and local perforations in the underarms allow maximum airflow, keeping you cool during intense rides.
• Reinforced Seams: Double and triple seams in high-stress areas to ensure durability and longevity.
• Zippers: Equipped with original YKK zippers for durability and smooth operation.
• Extras: Includes Sas-Tec chest and back protectors for comprehensive body protection and comes with knee sliders.

Whether you're racing or riding the track, the Racing Replica Smrz Suit ensures that you stay safe and comfortable without compromising style.

Got questions? Contact us.

The Racing Ultra Light Level 2 Spine Protector, developed with Jakub Smrz, meets the highest EN 1621-2: 2014 certification standard. This spine protector has been crafted to provide maximum safety without compromising comfort or mobility, making it ideal for professional racers and daily riders alike.

Its multi-layer polyurethane construction ensures excellent shock absorption, retaining its protective qualities even after repeated impacts. Designed for maximum mobility, the breathable cover keeps riders cool during long races. The adjustable waist belt and elastic straps allow for a perfect fit, making it comfortable for long use.

Whether you're tackling the demands of the racetrack or enjoying a day-to-day ride, the Ultra Light Level 2 Spine Protector offers unbeatable protection and comfort.

Key Features:

• Lightweight, multi-layer polyurethane for superior protection
• Breathable cloth cover for added comfort
• Adjustable waist belt (4 inches wide) and elastic straps (1.2 inches wide)
• Tested for residual force transmission of only 5.5kN
• Available in sizes S, M, L
• Weighs 14.8 oz (S), 16.5 oz (M), 19.9 oz (L)

Got questions? Contact us.

Black two-piece leathersuit designed for both high-performance riding and casual use. Ready for airbag integration, this suit offers unmatched safety and comfort on the track or during street rides.

Ride Like a Pro:

Crafted from premium 1.2 mm cowhide leather, this leathersuit is built to protect. The suit includes 17 protectors positioned on key areas such as shoulders, elbows, knees, and shins, with extra memory foam panels to enhance protection. Featuring Betac® protectors, this suit meets EN 1621-1:2012 certification standards, ensuring top-level protection.

Engineered for Maximum Comfort:

• Seamless stretch panels in the crotch and underarms for optimal flexibility.
• Pre-curved sleeves, well-shaped knees, and extended back for superior riding posture.
• Designed to be worn with Kevlar jeans or leather pants using integrated zippers.
• The narrow sleeve cuffs allow for full wrist mobility, perfect for racing gloves.

Key Features:

• 1.2 mm premium cowhide leather (black)
• Betac® top-quality protectors on shoulders, elbows, knees, and shins
• Viscofoam® memory protectors on collarbones, hips, and spine
• Aerodynamic hump with hydrobag space
• Local perforation on front and back for ventilation
• Triple-stitched seams for durability
• 4SR sliders on elbows and knees for extra protection
• AR Airbag Ready® for compatibility with In&motion® and Alpinestars Tech-Air® systems

What Makes This Suit Unique?

• Perforated sides for ventilation
• Attach the jacket to motorcycle jeans with ease
• Seamless aramid stretch panels for unmatched comfort and movement

This two-piece leathersuit combines durability, protection, and style, making it ideal for professional riders and enthusiasts alike.

Got questions? Contact us.

Looking for a high-performance racing suit that works with your airbag vest? The RR Evo III Camo AR two-piece suit from 4SR is designed to deliver top-tier protection and mobility. Featuring increased accordion stretch panels, this suit is perfect for both casual and competitive riding, offering full compatibility with any standalone airbag vest.

Key Features:

• Material: 1.2 mm cowhide leather, ensuring durability and comfort
• Protectors: High-quality Betac protectors for shoulders, elbows, and knees (EN 1621-1:2012 certified)
• Memory Protectors: Viscofoam on the hips, spine, collarbones, and forearms for impact absorption
• Zippers: Durable YKK and OPTI zippers for secure fastening
• Design: Pre-curved sleeves, aerodynamic hump, and longer back for an ideal riding position
• Ventilation: Local perforations under the arms and 3D mesh lining for airflow
• Sliders: Elbow Down TECH Sliders and replaceable knee sliders in multiple colour options
• Kevlar Stretch: Extensive Kevlar stretch for enhanced flexibility and mobility
• Custom Fit: Jacket can be attached to Kevlar jeans, and includes longer back for versatile use
• Compatible with Airbags: Ready for In & Motion or Alpinestars Tech-Air® airbag systems

Additional Benefits:

• Double and triple stitching for added durability in high-impact areas
• Two inside pockets for convenient storage
• Available in black, fluorescent red, and fluorescent yellow
• Reflective logo on the collar for added visibility

What Makes 4SR Unique?

• Kevlar stretch under the armpits and crotch is seamless, ensuring maximum comfort and durability.
• Areas prone to abrasion are reinforced with the patented 4SR double seam, stitched four times for added safety.
• The suit is tested by TÜV Rheinland, achieving Level 2 safety certification after withstanding 11.2 seconds in abrasion resistance testing.

Got questions? Contact us.

Looking for a high-performance racing suit compatible with your airbag vest? The RR Evo III Diablo AR is the ultimate Airbag Ready® leather suit designed for safety and mobility. With a sleek two-piece design, this suit ensures top-level protection while maintaining comfort during intense riding conditions.

This suit features accordion stretch panels, making it fully compatible with any standalone airbag vest, ensuring safety without compromising on flexibility. Crafted with input from professional racers, this is the safest and most comfortable RR Evo III suit to date. It includes 17 ergonomically placed protectors, and you can easily remove the 4SR Level 2 back and chest protectors to accommodate your airbag vest.

With its precision stitching and high-quality materials, the RR Evo III Diablo AR ensures durability and maximum protection. You’ll benefit from the same construction techniques used in factory racer suits, ensuring every ride is safe and secure.

Key Features:

• Material: 1.2mm cowhide leather / black, red, anthracite grey
• Protectors: Betac protectors on shoulders, elbows, and knees, certified to EN 1621-1:2012 standards
• Extra Protection: Viscofoam memory protectors on the hips, backbone, collarbones, and forearms
• Design: Pre-curved sleeves for enhanced comfort, aerodynamic speed hump, kevlar stretch underarm, crotch, and cuffs
• Zippers: YKK & OPTI zippers for durability and ease of use
• Ventilation: Local perforations under the arms for increased airflow
• Airbag Compatibility: Compatible with In&motion airbag system, Alpinestars Tech-Air® (Airbag system not included)
• Additional Features: Knee sliders included, extended back length for jacket use, Sas-Tec certified chest and back protectors available separately

What Sets 4SR Apart:

• Double-layer leather on the elbows, shoulders, hips, and seating area
• Patented 4SR seam with quadruple stitching in high-abrasion areas
• Jacket from two-piece suits can be attached to Kevlar jeans
• Two-piece suits are perforated for better breathability

This suit is TÜV Rheinland® certified for abrasion resistance, with Level 2 safety certification, ensuring the highest levels of protection in extreme conditions.

Got questions? Contact us.