Racing Optics
Racing Optics (X-Stack) - Impact Helmet Shields Tear Off
$33.95
Racing Optics (X-Stack) - Impact Helmet Shields
Racing Optics has the most optically advanced tear-off technology. 10 layer "distortion free" laminated tear-off system for many Impact helmets. Protect your Impact Helmet shield from rocks, dirt, and debris and extend the life of your shield by drastically reducing pitting and scratches.
Racing Optics is a laminated tear-off solution for dirt and pavement forms of racing eliminating the need to apply individual tear-offs. Racing Optics has the most optically advanced tear-off technology. 10 layer "distortion free" laminated tear-off system for many Impact shields. Protect your Impact Helmet shield from rocks, dirt, and debris and extend the life of your shield by drastically reducing pitting and scratches. For racers who prefer thinner tear-offs, Racing Optics is available in X Stack (10 per stack) 2 mil with patterns specific to many Impact helmets. Each sleeve comes with three stacks of 10 Racing Optics. (total of 30)
Racing Optics (X-Stack) - Impact Helmets Details:
Qty in one stack: 10
Thickness: 2 mil
Stacks in one package: 3
Post centers: 12 1/8"
Shape: Banana
Racing Optics (X-Stack) - Impact Helmets Fitment Guide:
Impact Vapor
Impact Vapor SC
Impact Air Vapor
Impact Charger
Impact Super Charger
Impact Draft
Scorpion Exo-R2000
SPA Technique
SPA Technique Internal Fire Discharge Button
$33.00
SPA Technique Internal Fire Button w/ Shroud
Spa Technique Replacement Internal Discharge Button w/ Safety Shroud. Used in every Spa Technique electrically discharged fire system, this is an exact SPA replacement Internal Fire System Discharge Button with a red safety guard cover to prevent accidental discharge.
SPA Technique Internal Fire Button w/ Shroud Details:
Manufacturer: Spa Technique
Manufacturer part number: SSP 011
Button Color: Red
Contacts: 2
Shroud included: Yes
Shroud color: Red
Quantity in kit: One
SPA Technique
SPA AFFF Discharge Nozzle 6mm
$33.00
SPA Technique AFFF Discharge Nozzle - 6mm
SPA Technique Discharge Nozzle for 6mm Decabon tubing used with SPA fire systems. If you need a replacement SPA fire system discharge nozzle, this is the part.
Can I run this SPA Technique Discharge Nozzle with my aluminum line from another manufacturer? You can't. SPA Technique Decabon tubing and fittings are unique unto themselves and are not interchangeable with other manufacturers.
Should I add more SPA Technique Discharge Nozzles to my system than it originally came with? You shouldn't. SPA Technique designs each fire system with a precise number of nozzles accounting for the amount of fire suppressant in the fire bottle. Adding nozzles may leave you with too little suppressing agent where you need it most.
SPA AFFF Discharge Nozzle 6mm Details:
Manufacturer: SPA Technique
Manufacturer part number: SP-030
Trade name: Discharge Nozzle
Usage: replacing a lost or damaged SPA Discharge Nozzle
Alpinestars
Alpinestars KX v2 Karting Balaclava
$32.95
Alpinestars KX v2 Karting BalaclavaAlpinestars KX v2 Karting Balaclava is optimized for track-day performance with reliable cooling, lightweight construction, and race-ready durability.
Alpinestars KX v2 Balaclava Summer is extremely lightweight and thin, while being incredibly soft to the touch for greatly enhanced comfort when wearing a full face helmet, and has extensive mesh panels on the rear for optimum levels of breathability.
Simpson Performance Products
Simpson Racing Sliding Tether (Replacement)
$32.95
Simpson Racing Hybrid Sliding Tether
More Freedom. Same Safety. All Speed.
When you're chasing lap times and pushing the limits, the last thing you want is a neck restraint that fights you. The Simpson Racing Hybrid Sliding Tether is engineered to work with your movement, not against it—offering enhanced head mobility without compromising safety.
Whether you're flat-out in a GT car or trail braking into a tight hairpin, this tether system gives you that extra bit of range when you need it most—all while keeping your head-and-neck restraint system securely anchored.
KEY FEATURES & BENEFITS
Freedom to MoveDesigned with a sliding mechanism, this tether gives drivers more natural side-to-side head movement—critical in high-G corners, endurance races, or while checking mirrors in traffic.
Tailored Fit for Your SetupAvailable in two sizes:
Small (7.5") – Ideal for drivers using Small or Medium Hybrid devices
Large (11") – Perfect for Large or X-Large Hybrid modelsNo guesswork—just pick your size and go.
Post Anchor CompatibleWorks seamlessly with standard HANS-style post anchor helmet systems. If you’re already running a Simpson Hybrid Sport or Pro with post anchors, you’re good to go.
Built for the Long HaulTough, track-tested components that hold up under extreme racing conditions—heat, sweat, vibration, and all.
Technical Specs
Feature
Spec
Product Type
Sliding tether kit for head & neck restraint
Sizes Available
Small: 7.5” • Large: 11”
Compatibility
Simpson Hybrid & Hybrid Sport w/ post anchors
Part Number
Varies by size
Color
Black
Certification
Designed for use in FIA and SFI-certified restraint systems (verify per device)
Simpson Racing Sliding Tether Replacement FAQs
Q: What’s the difference between the standard tether and the sliding version?A: The sliding tether allows more natural lateral head movement—giving you the range you need without losing restraint protection. It’s a game-changer in terms of comfort and visibility.
Q: Is this compatible with my helmet?A: If your helmet has HANS post anchors, yes. This sliding tether works with post anchor systems found on most Simpson and aftermarket helmets.
Q: Does this tether meet FIA or SFI standards?A: The tether itself is a replacement/add-on component designed for use with Simpson’s FIA- and SFI-certified head restraint systems. Always ensure your complete setup (Hybrid + helmet + tether) meets your sanctioning body’s requirements.
Q: How do I install it?A: Easy! Remove the existing tether from your Hybrid device and replace it with this one using the same mounting points. If you’re not 100% sure, Simpson provides a detailed installation guide—or just have your tech team knock it out in the paddock.
Q: How often should I replace the tether?A: Regular inspections are key. Replace your tether if it shows fraying, wear, or impact damage. As a general rule, many drivers replace them every 1–2 seasons depending on use.
Ready to Race Smarter?
The Simpson Hybrid Sliding Tether isn’t just an upgrade—it’s peace of mind with added flexibility. If you want to move more naturally in the car without sacrificing neck safety, this is your move.
Select your size (Small or Large) and Add to Cart now.Because a smarter driver is a faster driver—and a safer one too.
AiM Sportline
AiM 712 5 Pin Male Binder Connector
$32.95
AiM 712 5 Pin Male Binder Connector
This 712 AiM 5 pin threaded connector with male pins is a common cable end on many AiM CAN connections. If you are shortening or making custom length cables, the AiM 9904130005 Binder 712 5-pin/Male is a common part.
AiM 712 5 Pin Male Binder Connector Details:
Manufacturer: AIM
Manufacturer part number: 9904130005
AiM 712 5 Pin Male Binder Connector Common Uses:
AiM 712 Custom length cables
Adapting external non-AiM components into your AiM system
Replacement of a damaged cable end
Sparco S.p.A.
Sparco Water Bottle Martini Racing
$32.00
Sparco Martini Racing Water Bottle
The legendary partnership between Sparco and Martini Racing returns with the Sparco Heritage Collection. Inspired by one of motorsport's most iconic liveries, the Sparco Martini Racing Aluminum Water Bottle combines timeless racing heritage with everyday practicality. Featuring authentic Martini Racing graphics and a bold Sparco logo, this premium bottle is perfect for race weekends, track days, travel, and daily use.
Classic Motorsport Heritage Meets Everyday Functionality
Celebrating the unforgettable Sparco and Martini Racing collaboration that became famous during the World Rally Championship era of the 1980s, this lightweight aluminum bottle delivers both style and performance. The leak-proof screw-top closure keeps beverages secure while the durable aluminum construction makes it ideal for life at the track, in the paddock, or on the go.
Sparco Water Bottle Martini Racing Features
Official Sparco Heritage Collection design
Classic Martini Racing graphics printed on one side
Bold Sparco logo featured on the reverse side
Lightweight aluminum construction
Leak-proof screw-top closure
Durable design for daily use
Ideal for motorsport enthusiasts, travel, and track days
Inspired by the historic Sparco and Martini Racing partnership
Perfect for Track Days, Racing Events, and Daily Use
Whether you're spending a weekend at the racetrack, working in the shop, traveling, or simply showing your appreciation for motorsport history, the Sparco Martini Racing Aluminum Water Bottle offers a stylish and practical hydration solution.
Sparco Water Bottle Martini Racing Frequently Asked Questions
What collection is this water bottle part of?This bottle is part of the Sparco Heritage Collection, which celebrates iconic designs and partnerships from Sparco's motorsport history.
Does the bottle feature official Martini Racing graphics?Yes. The bottle includes classic Martini Racing graphics on one side and a Sparco logo on the reverse side.
Is the cap leak-proof?Yes. The screw-top closure is designed to provide a secure, leak-resistant seal during transport and everyday use.
What material is the bottle made from?The bottle is constructed from lightweight and durable aluminum for long-lasting performance.
Is this suitable for track day use?Absolutely. The lightweight design and secure closure make it an excellent companion for race weekends, track days, paddock use, and travel.
Can this be used as an everyday water bottle?Yes. It is designed for both motorsport enthusiasts and everyday users who appreciate classic racing heritage.
Celebrate one of motorsport's most iconic partnerships with the Sparco Martini Racing Aluminum Water Bottle. Shop now at Discovery Parts for premium Sparco accessories, apparel, race gear, and motorsport lifestyle products.
AiM Sportline
AiM Bullet Bracket Adapter for SmartyCam3 GP and GP HD
$32.00
AiM Collar Clamp Mount Adapter for SmartyCam GP3 and HD GP
Lightweight billet aluminum and made just for your AiM SmartyCam3 GP or HD GP, this collar adapter lets you mount your AiM SmartyCam3 GP or SmartyCam HD GP on any mount with a standard 1/4-20 male stud. The black anodized aluminum collar fits other "lipstick" cameras with a 24mm (0.94") outside diameter. Measures 10mm (0.4") wide.
AiM COLLAR CLAMP MOUNT ADAPTER FOR SMARTYCAM3 GP DETAILS
Manufacturer: AiM Sports
Manufacturer part number: HSCFKB00A
Alternate part number: MC-589
Color: Black
Material: Anodized aluminum
ID of bore: 24mm
ID of bore: 0.94"
Width: 10mm
Width: 0.4"
AiM Sportline
AiM Sports 719 Extension Cables
$32.00
AiM Sports 719 Extension Cables
AiM Sports 719 Extension Cables connect your AiM pressure or temperature sensors to your primary or auxiliary harness. The AiM 719 extension cable has one male (dash side) and a female (sensor side) 719 connector in your choice of lengths. The AiM 719 connection is identified as a black plastic 4 pin connector.
Use these extension cable to connect additional sensors to the following AiM Sports Dashes:
MXG
MXS
MXL2
MXL Strada/Pista/Pro 05
Part numbers:
V02PCB05B cable length: 0.5m - 1.6ft
V02PCB10B cable length: 1m - 3.3ft
V02PCB15B cable length: 1.5m - 4.9ft
V02PCB20B cable length: 2m - 6.6ft
V02PCB25B cable length: 2.5m - 8.2ft
V02PCB30B cable length: 3m - 9.8ft
V02PCB40B cable length: 4m - 13.12ft
Paragon Pro Inc.
Paragon Blower Filter Housing Fitting (4")
$31.99
Paragon 4.0" Blower Filter Housing Fitting
Paragon’s 4” Blower Filter Housing Fitting is custom made for connecting Paragon’s 3” Air Hose to the 4" inlet of Paragon’s 240 CFM Air Blower. The Paragon 4” Blower Filter Housing Fitting is made to house Paragon’s Blower Air Filter Screen and Paragon’s Blower Air Filter.
Each sold separately
Longacre
Longacre Battery Disconnect Switch - 2 Terminal
$31.99
Longacre Battery Disconnect Switch - 2 Terminal
Longacre 45750 Battery Disconnect Switch with rotary Battery Disconnect. 175 Continuous AMP Rating stops the most powerful engines.
Longacre Battery Disconnect Switch - 2 Terminal Details:
Manufacturer: Longacre
Manufacturer part number: 47550
Manual battery disconnect switch with a bright red handle
Easier to find in an emergency
Prevents battery drain
175 amp continuous rating, 6-36 volt, 1000 peak
Longacre 45750 Specifications
Switch Activation:
Manual
Switch Actuation:
Rotary
Voltage Rating:
6-36 volts
Continuous Amperage Rating:
175 amps
Peak Amperage Rating:
1000 amps
Alternator Disconnect Included:
No
Weatherproof:
No
Mounting Panel/Bracket Included:
No
Mounting Hole Size:
0.730"
Body Diameter (At largest Point):
2.647"
Body Depth (From end of threads to lock washer):
2.980"
Overall Depth:
4.216"
RainMaker Solutions, Inc.
Maglock Air Hose
from $31.80
Maglock Air Hose
Maglock Air hose side NOT included
Maglock Air Hose is built to our exact specifications to ensure that you get the lightest, most flexible hose on the market today. The feedback from our test pilots ensures you that neck fatigue during use is greatly reduced, furthermore, this hose does not leverage or disconnect the Maglock Air in high G or high impact environments. Used by top motorsports athletes including all Andretti Indy cars. We highly recommend our hose to be paired with Maglock Air.
AP Racing Limited
AP Racing Radi-CAL R3 Racing Brake Fluid
$31.44
AP Racing Radi-CAL R3 Racing Brake Fluid
Designed For The Top Levels Of Motorsports
AP Radi-CAL R3 was developed for use in very-high-temperature racing conditions. Conforms to and exceeds FMVSS 116 DOT 4 and SAE J1703 and J1704. AP Racing Radi-CAL R3 Racing Brake Fluid is currently one of the most popular brake fluids at the highest levels of professional auto and motorcycle racing. It was specifically developed for coping with extraordinary temperatures, such as those encountered when running a carbon/carbon brake system.
To ensure that the fluid stays fresh, AP brake fluids are furnished in 500 ml (16.9 oz) easy-pour plastic bottles with double-sealed caps. When switching your fluid to AP Racing Radi-CAL R3, we recommend purging all of the old fluid from the system. Three to four bottles of fluid are enough to completely replace existing brake fluid and still have enough left over for a bleed at the track to remove any remaining air bubbles.
AP Racing Radi-CAL R3 Brake Fluid Details
Manufacturer: AP Racing
Manufacturer part number: AP-CP5660
UPC: 48238040081
DOT Rating: DOT 4
Dry Boiling Point: 325º C (617º F)
Wet Boiling Point: 195º C (383º F)
Compatible with other DOT 4 fluids: Yes
Bottle size: 16.9 fl oz (500ml)
Paragon Pro Inc.
Paragon Blower Hose Fitting (4")
$30.99
Paragon 4.0" Blower Hose Fitting
Paragon’s 4” Blower Hose Fitting is custom made for connecting the Paragon 1.25” Air Hose to Paragon’s 240 CFM Air Blower.
Sparco S.p.A.
Sparco Stealth Tear-Off Kit(Pack of 5)
$30.00
Sparco Stealth Tear-Off Kit
The Sparco Stealth Tear-Off Kit is designed to give you crystal-clear vision in any racing condition. Built for drivers who demand precision and clarity, this kit allows quick removal of dirt, rubber, and debris from your visor with a simple pull—keeping your focus locked on the track where it belongs.
Professional-Grade Visibility for Serious Racers
Developed to fit Sparco Stealth helmet shields, each tear-off is made from ultra-clear, distortion-free film that resists fogging and scratching. Whether you're running sprints, endurance events, or karting sessions, these tear-offs ensure uninterrupted visibility lap after lap. The layered design makes it easy to strip away grime without slowing down, ideal for fast pit stops or extended sessions.
Features
• Compatible with Sparco Stealth RF and full-face helmets• Ultra-clear optical film with anti-scratch coating• Stackable multi-layer design for quick removal• Maintains optical clarity under sunlight and artificial lighting• Lightweight and precision-cut for perfect fit• Easy installation and replacement• Sold as a complete kit for multiple sessions
Sparco Stealth Tear-Off Kit FAQs:
Which helmets are compatible with this tear-off kit? The Sparco Stealth Tear-Off Kit is designed specifically for Sparco Stealth RF helmet visors and may also fit select Sparco models with similar shield geometry.
How many tear-offs are included in the kit? Each kit includes multiple tear-off films, allowing for several track sessions before restocking.
Are these tear-offs reusable? No. Each layer is meant for one-time use to maintain perfect optical clarity once debris accumulates.
Do the tear-offs affect vision clarity? Not at all. The film is engineered for zero visual distortion, maintaining sharp focus even under direct sunlight or night lighting.
How do I install the tear-offs? Simply align the holes with the mounting posts on your Sparco STEALTH RF visor and stack the desired number of layers before your session.
Stay sharp and race-ready with the Sparco Stealth RF Tear-Off Kit—essential gear for maintaining peak visibility in every lap, every condition.
Sparco S.p.A.
Sparco Gulf Keychain
$30.00
Sparco Gulf Keychain
Iconic Gulf Racing Style, Pocket-Sized
Small accessory, big attitude. The Sparco Gulf Keychain brings motorsport flavor to your everyday carry with iconic Gulf branding and premium construction. Whether it’s holding your keys, hanging from your race bag, or just reminding you of your track day dreams, this keychain is built to flex your racing style—even when you're just unlocking the mailbox.
Features of the Sparco Gulf Keychain:
Double-Sided Design: One side reps the timeless Gulf logo, the other flashes the Sparco badge. Two legends, one keychain.
Microfiber Leather Finish: Durable, soft-touch microfiber leather offers a premium feel without adding bulk to your pocket or bag.
Rubber Logo Patches: Raised rubber emblems stitched securely into the keychain add texture, grip, and bold color contrast.
Split Ring and Clip Hook: Securely attaches to keys, zippers, or bags—ideal for gearheads on the move.
Track Day or Everyday: Whether you're driving a GT car or a grocery-getter, this keychain adds paddock-ready personality.
Sparco Gulf Keychain FAQs:
Is the Sparco Gulf Keychain made from real leather? No, it uses high-quality microfiber leather for durability and a soft touch—no animals involved.
How big is the keychain? It’s compact enough for everyday use but large enough to find easily in a bag or pocket. Approx. 3–4 inches tall.
Will the logos wear off over time? The Gulf and Sparco logos are rubber patches securely stitched into the material—designed to hold up to everyday use.
Can I use this on my race bag or luggage? Absolutely. The sturdy key ring and hook make it great for tagging bags, zippers, or even backpacks.
Carry a piece of racing heritage with you every day. The Sparco Gulf Keychain is a stylish, durable nod to the golden era of motorsport—and it fits in your pocket.