4SR USA

Our one-piece racing suits are manufactured on a custom basis and are made to fit.
We really understand how important it is to have a racing suit that fits perfectly. That´s why we try to consider the needs and physical proportion of each racer. All of this goes hand in hand with color combination and the overall design, which can be done in any color combination and style. Specifically, even with sponsor logos, names and numbers. All details can be produced in printed form, leather logos, embroidery or laser burning.
   

Contact us at individual@4sr.com and you will immediately receive graphical materials and supplementary information. We are looking forward to hearing your ideas! 

 

We caught up with 4SR racers, to ask them 2 questions - "Why do you race in the British Supersport Championship & What made you choose 4SR leathers?"
Watch the full videos in Video  tab below to find out why!

Please note that we can't ship the suit to California.

A motorcycle suite made from kangaroo leather used to be a privilege for professional racers to wear. Its minimum weight was loved by riders who were slowly losing strength, as well as engineers who were increasing the maximum speed of the machine by tenths. You now have a chance to experience that feeling of lightness as well. We present you with the lightest suit in the 4SR collection.

Easy and fast, you're now Airbag Ready! Thanks to the unique cut and placement of accordion stretch panels, you can use several variants of standalone airbags available on the market. Our stitching and materials remain and will always remain 100% the same as our factory racers suits.

The price includes knee and elbow sliders, internal protectors, removable chest and back protectors, double hip and coccyx protection and all from reputable brands. We have 18 ergonomically placed protectors, the most used in any mass-produced 1pc leather suit.

"WE MAKE OUR PRODUCTION SUITS IN THE SAME WAY WE PREPARE OUR FACTORY RACERS SUITS"

We have also developed a simple and effective solution for holding up your leathers between track sessions, 4SR's Zipper Lock system will effectively hold the upper half of your suit out of the way.

The one-piece Racing Ultra Light AR is also equipped with:

• Hollow hump to fit 4SR Hydrobag
• Seamless stretch in the crotch and armpit area for increased movement
• Flexible, comfortable material used on the sleeve cuffs
• Zipper lock to hold your leathers in between track sessions
• Elbow down TECH elbow sliders. Available in several colours - White, Black, Red, Fluorescent Red, Fluorescent Yellow and Green.
  
  

Standard equipment of the Racing Ultra Light AR Airbag Ready® includes:

• 0,9 mm thick kangaroo leather / black, fluorescent red, grey /
• weight of the suit is 3,4 kg, weight with protectors including chest protector, back protector and sliders is 5,2 kg (size 48)
• 4SR Elbow down TECH - replaceable elbow sliders
• offset shoulders and pre-curved sleeves for the perfect riding position
• high specification Betac shoulder, elbows and knees, certificated in accordance with EN 1621-1: 2012
• YKK & OPTI Zippers
• maximum perforation on chest and back area, local perforation on arms, hips and thighs
• 3D bubble mesh lining
• Aramid stretch panels for maximum mobility
• flexible leather panels
• hollow aerodynamic hump to fit 4SR Hydrobag
• use of tripple seams & patented, double 4SR seam at more stressed points
• soft strech sleeve cuffs
• comfortable collar
• reflective logo on collar
• includes chest and back protectors (Both must be removed if using an Airbag system)
• includes knee sliders
• excludes Airbag system

• AR suit is compatible with In&motion airbag systems, Alpinestars Tech-Air®
• AR Airbag Ready® is a trademark registered in the Industrial Property Office of the Czech Republic
  
  

What does 4SR have and others don't?:

• The suit is fully equipped with racing protectors, including chest and back protectors
• Aramid stretch panel under the armpits and crotch is seamless
• Inside the suit you will find a hidden pocket for a LapTimer
• After closing the patent on the slider of the main zipper, the unzipped suit will not fall passed the butt 
• Areas prone to abrasion are connected by a patented, double 4SR seam, which is sewn 4x!
• 4SR suits have two layers of leather on the elbows, shoulders, hips and seating area
• 4SR leather was tested by the TÜV Rheinland® certification center according to the EN 13595-2: 2002 standard, where it withstood 11.2s in the abrasion resistance test. We received the Level 2 and safety label for our leather and AAA according to EN 17092.

Are you looking for a top-class racing suit to accommodate your standalone airbag vest? Then you’ve just found the best Airbag Ready® leathers on the market. Total mobility, that is the expression characterising all 4SR two-piece suits.

Our latest specification RR Evo Pearl Blue AR two-piece suit comes with all the unique safety points you would expect from 4SR, but with our increased area of accordion stretch panel, this suit can now work safely in conjunction with any standalone airbag vest for racing.

Over the years we have been working with professional racers to develop the safest suits possible, this is our safest and most comfortable yet. RR Evo Pearl Blue AR suit already comes with 17 ergonomically placed protectors and if you remove the 4SR Level 2 back and chest protectors, you can then wear your chosen airbag vest underneath. Easy and fast, you're now Airbag Ready!

Thanks to the unique cut and placement of accordion stretch panels, you can use several variants of standalone airbags available on the market. Our stitching and materials remain and will always remain 100% the same as our factory racers suits.
 

"WE MAKE OUR PRODUCTION SUITS IN THE SAME WAY WE MAKE OUR FACTORY RACERS SUITS"

4SR ELBOW DOWN TECH

Replaceable Elbow Down TECH Sliders come in a variety of colour options, such as White, Black, Standard Red, Fluorescent Red, Fluorescent Yellow or Green.

 

4SR motorcycle two-piece suit RR Evo III Monster Green AR:

• 1,2 mm cowhide leather / pearl blue, fluorescent green, fluorescent red, white /
• high quality protectors Betac on shoulders, elbows and knees, certificated in accordance with EN 1621-1:2012
• memory protectors Viscofoam on the hips, backbone and collarbones & forearms
• YKK & OPTI Zippers
• local perforations underarm
• 3D mesh lining
• extensive Aramid stretch help rider movement and comfort on the bike
• offset shoulders and pre-curved sleeves for the perfect riding position
• better shaped leather panels at the back area of the suit will take care of perfect mobility
• aerodynamic speed hump
• use of tripple seams & patented, double 4SR seam at more stressed points
• aramid stretch cuffs
• comfortable collar
• reflective logo on the collar
• two inside pockets
• longer back, jacket can be used separately
• suit can be also equipped with certified chest & back protector Sas-Tec
• includes knee sliders
• excludes Airbag system

• AR suit is compatible with In&motion airbag systems, Alpinestars Tech-Air®
• the leathers can be supplemented with an airbag data cable with control LEDs
• AR Airbag Ready® is a trademark registered in the Industrial Property Office of the Czech Republic
   

What does 4SR have and others don't?:

• you can attach the jacket from the two-piece suit to Motorcycle jeans
• two-piece suits are perforated on the sides
• aramid stretch under the armpits and crotch is seamless
• areas prone to abrasion are connected by a patented, double 4SR seam, which is sewn 4x!
• 4SR suits have two layers of leather on the elbows, shoulders, hips and seating area
• 4SR leather was tested by the TÜV Rheinland® certification center according to the EN 13595-2:2002 standard, where it withstood 11.2 s in the abrasion resistance test - we received the Level 2 safety label for our leather
  
  

Are you into black? Want the highest level of safety? Than look no other way, we've just the thing for you! Black classic in a two-piece design ready for an airbag. In our new leathersuit you can enjoy both performance riding on the race track and the casual afternoon ride in jeans.

DRESS LIKE A PRO!

The materials, cut, and triple-stich sewing technique are based on our experience developing racing suits. At 4SR we do not differentiate between racing and customer suits, so this suit is made of the same quality leather, sewn with the same technology and equipped with the same protectors as the suits of our factory riders in WSBK, BSB or Moto America.

MADE FOR GRINDING THE ASPHALT!

The leathersuit is made of premium 1.2 mm thick cowhide leather and comes equipped with a total of 17 protectors. On the shoulders, elbows, knees and shins you will find comfortable Italian Betac protectors. Panels of memory foam sewn into the areas around the shoulders, collarbones, elbows, forearms, hips, base of the spine, knees and shins, absorb impact during falls and give another level of protection in case the leather is sanded trough. The most exposed areas during falls – shoulders, elbows, buttocks and hips – contain extra layer of leather. All this is complemented by black sliders on the shoulders, elbows and knees. The suit can be equipped with a back and chest protector, or one of the airbag vests available on the market.

The pre-curved sleeves, forward-leaning shoulders, well-shaped knees, and seamless stretch in the crotch and underarms allow for a flawless riding position on a sportbike. The narrow sleeve cuffs do not impede wrist movement and allow the use of racing gloves. For greater comfort, the jacket is extended in the back part and can be easily attached to kevlar jeans or leather pants using long or short zipper. The suit is embroidered with 4SR logo and other decorative elements made of suede leather.

4SR two-piece leather suit RR Evo Black Series AR:

• 1.2 mm thick cowhide leather / black
• forward-leaning shoulders and sporty pre-curved sleeves allow for a flawless riding position
• top-quality Betac® protectors on shoulders, elbows, knees, and shins certified to EN 1621-1:2012
• Viscofoam® memory protectors on collarbones, forearms, base of the spine and hips
• aerodynamic hump with space for hydrobag
• YKK® & OPTI® zippers
• local perforation on the front, sides, and back
• 3D lining
• extensive, seamless aramid stretch for maximum mobility
• flexible, leather panels without restricting seams
• extended back length – jacket can be worn separately
• connection with leather trousers and jeans through long and short zipper
• triple-stitch and the patented 4SR double seam used on more stressed areas
• sleeve cuffs are made of soft aramid stretch fabric
• comfortably designed collar with logo
• stylish details made of suede leather
• 2 inner pockets
• the jacket can be equipped with Sas-Tec® chest and spine protector
• 4SR elbow and knee sliders
• the suit does not include an airbag system, we will be happy to help you choose a suitable gear

• the AR suit is compatible with the Alpinestars Tech-Air® and In&motion® airbag systems
• the suit can be supplemented with an airbag data cable with control LEDs
• AR Airbag Ready® is a registered trademark of the Industrial Property Office of the Czech Republic

Are you looking for a top-class racing suit to accommodate your standalone airbag vest? Then you’ve just found the best Airbag Ready® leathers on the market. Our latest specification Racing Camo AR 1PC race suit comes with all the unique safety points you would expect from 4SR, but with our increased area of accordion stretch panel, this suit can now work safely in conjunction with any standalone airbag vest for racing.

Over the years we have been working with professional racers to develop the safest suits possible, this is our safest and most comfortable yet. Racing Camo AR suit already comes with 18 ergonomically placed protectors and if you remove the 4SR Level 2 back and chest protectors, you can then wear your chosen airbag vest underneath. Easy and fast, you're now Airbag Ready!

Thanks to the unique cut and placement of accordion stretch panels, you can use several variants of standalone airbags available on the market. Our stitching and materials remain and will always remain 100% the same as our factory racers suits.

If you want to improve your motorcycle suit, leather jacket or trousers with leather logos, 4SR badging service is here for you!

The price includes knee and elbow sliders, internal protectors, removable chest and back protectors, double hip and coccyx protection and all from reputable brands. We have 18 ergonomically placed protectors, the most used in any mass-produced 1pc leather suit.

"WE MAKE OUR PRODUCTION SUITS IN THE SAME WAY WE PREPARE OUR FACTORY RACERS SUITS"

   We have also developed a simple and effective solution for holding up your leathers between track sessions, 4SR's Zipper Lock system will effectively hold the upper half of your suit out of the way.

The one-piece Racing Camo AR Airbag Ready is also equipped with:

• Hollow hump to fit your Hydroback
• Seamless stretch in the crotch and armpit area for increased movement
• Flexible, comfortable material used on the sleeve cuffs
• Zipper lock to hold your leathers in between track sessions
• Elbow down TECH elbow sliders. Available in several colours - White, Black, Red, Fluorescent Red, Fluorescent Yellow and Green.

 

Standard equipment of the Racing Camo AR Airbag Ready® includes:

• 1,2 mm thick cowhide / black, fluo red, fluo yellow /
• 4SR Elbow down TECH - replaceable elbow sliders
• offset shoulders and pre-curved sleeves for the perfect riding position
• high specification Betac shoulder, elbows and knees, certificated in accordance with EN
• YKK & OPTI Zippers
• maximum perforation on chest area, local perforation on arms, hips and thighs
• 3D mesh lining
• Aramid stretch panels for maximum mobility
• flexible leather panels
• hollow aerodynamic hump to fit 4SR Hydrobag
• use of tripple seams & patented, double 4SR seam at more stressed points
• soft strech sleeve cuffs
• comfortable collar
• reflective logo on collar
• includes chest and back protectors (Both must be removed if using an Airbag system)
• includes knee sliders
• excludes Airbag system

• AR suit is compatible with In&motion airbag systems, Alpinestars Tech-Air®
• AR Airbag Ready® is a trademark registered in the Industrial Property Office of the Czech Republic
  
  

What does 4SR have and others don't?:

• The suit is fully equipped with racing protectors, including chest and back protectors
• Aramid stretch panel under the armpits and crotch is seamless
• Inside the suit you will find a hidden pocket for a LapTimer
• After closing the patent on the slider of the main zipper, the unzipped suit will not fall passed the butt 
• Areas prone to abrasion are connected by a patented, double 4SR seam, which is sewn 4x!
• 4SR suits have two layers of leather on the elbows, shoulders, hips and seating area
• 4SR leather was tested by the TÜV Rheinland® certification center according to the EN 13595-2: 2002 standard, where it withstood 11.2s in the abrasion resistance test. We received the Level 2 safety label for our leather.