Alpinestars Youth Neck Support
Alpinestars Alpinestars Youth Neck Support $149.95
Alpinestars Youth Neck Support Specially designed for youth or smaller framed rider the Youth Neck Support functions when the helmet and support frame provide an alternative load path for the excessive energy that compresses the neck. If the helmet is in contact with the neck support at the moment of impact the overall load passing through the neck can be reduced, which may prevent a fracture from occurring and reduce the chance of muscular injuries from extreme head movement. Although it is not possible to eliminate the risk of any form of injury, the support has been proven to help reduce the most serious damage and minimize the risk of collateral injury as the impact load is channeled away from the neck. FEATURES: New compact and easy to use lightweight neck protection to fit kids from 8 to 14 yrs. Ergonomic designed and engineered shape for perfect fitment and engagement with A-5s and Youth Bionic Action Jacket Left and right rigid frames made from a polymer compound in combination with the internal smooth edged soft injected EVA provide a perfect fit and stable positioning. Overall frame construction dissipates energy loads by transmitting them across the back. Flexible back connector between the left and the right frames allows the Neck Support to follow the body movement when riding.
Sparco Pit Stop Crew Shoes
Sparco Sparco Pit Stop Crew Shoes $149.00
Sparco Pit Stop Crew Shoes The Sparco Pit Stop shoe was designed specifically for pit crew use but it can also be used for racing where a durable and thicker sole is preferred such as off-road. The Pit Stop shoe is SFI approved for racing or “over the wall” crew use. The Pit Stop has a suede upper with a perforated tongue and heel for added breathability and it has leather panels on the toe box and heel for extra durability. The anti-static, fuel- and oil-resistant rubber sole was designed for maximum grip, with a toe cap designed to protect the toe area when in the kneeling position. Internal lace system to help protect from snagging. The Pit Stop has an extra padded collar area with a Velcro closure which gives extra support. The internal foot bed has a special cushioned insole that gives maximum comfort. The Sparco Pit Stop shoe is available in black in US sizes 7-1/2 to 15. SFI homologated. TECHNOLOGY Padded collar and adjustable strap Pre-shaped anatomic insole Perforated breathable upper Anti-static, fuel- and oil-resistant sole Internal lacing system SFI approved
Brey Krause Gen5 Camaro Seat Mount w- Sub-Bar
Brey Krause Brey Krause Gen5 Camaro Seat Mount w- Sub-Bar $328.19
Brey Krause Gen5 Camaro Seat Mount w/ Sub-Bar Everything you need in one place! Select driver or passenger side and add a sub-mount bar for each side! Brey-Krause manufactures high quality, performance driving accessories for a variety of automobiles. Innovative engineering and superior workmanship are hallmarks of the Brey-Krause automotive products. All Brey-Krause parts can be installed easily, without any modifications, using existing holes and factory mounting points to ensure that the value of the vehicle is never compromised. Whether the car is used on the road or the track, the Brey-Krause performance driving accessories set the standard in both engineering function and aesthetic design. Features: Material - Type 304 Stainless Steel Finish - Black gloss powder-coat; Satin finish Installation - Attaches to driver side factory seat mounting points R-9172 sub strap mount sold separately (see pull-down) Miscellaneous - Seat brackets must be purchased separately (see pull-down) Compatible side mounts when using Recaro sliders - For Sparco Seats to Recaro Sliders (These parts are made for but not limited to the mentioned seats.): R-9060 - Sparco Evo, Momo Super Cup, R-9061 - Sparco Evo 2, Evo 2+, Corsa, OMP HTE-XL Compatible side mounts when mounting direct to R-9170 - Side Mount Brackets for Sparco Seats (These parts are made for but not limited to the mentioned seats.):R-9071 - Sparco Evo, Pro 2000, R-9072 - Sparco Evo, Pro 2000, R-9073 - Sparco Evo 2, R-9074 - Sparco Evo 2, R-9761 - Sparco Evo 2 Plus, R-9762 - Sparco Evo 2 Plus, R-9075 - Sparco Evo 2 US, R-9076 - Sparco Evo 2 US Fitment: Chevrolet Camaro 5th Gen RACE SEATS ONLY! Does not work with OEM Recaro seats.
GARMIN CATALYST LAP TIMER FRONT STOP WATCH IMAGE
Garmin Garmin Catalyst™ Driving Performance Optimizer $999.99
Garmin Catalyst Driving Performance Optimizer DISCOVER YOUR FULL TRACK DRIVING POTENTIAL This device is an industry-first, providing virtual coaching in real time and showing a calculated optimal lap. Real time coaching tells you how to go faster in each corner, with audio instructions, so you can keep your eyes up at all times. This is a stark contrast to existing systems which only provide feedback after a corner or after your session. The Catalyst uses your measured optimal lap to guide you to your personal maximum performance, rather than the performance of a professional racing driver. OverviewGarmin Catalyst uses accelerometers, GPS, video, and the most sophisticated algorithms to evaluate your driving performance and then suggest ways to improve (just like a human coach). Through the display and audio, Catalyst provides a real-time assessment of performance using both gentle suggestions and positive reinforcement. No, it won't clap when you get it right but it does use real-world phrases and encouragement - such as "brake less", "apex later", or "keep pushing". Catalyst is perpetually evaluating and assessing your performance so it can optimize your lap and get you in line. After your session, review track maps showing opportunities for improvement as well as "heat map" displays of deceleration, acceleration, apexes, and speeds.Display & AudioCatalyst uses a 6.95" super wide view LCD IPS screen with vivid TFT colors. The LCD is a touchscreen, able to control functions without the need for a remote control, app, or a laptop. Coaching or playback audio is available via 3.5mm headphone jack or Bluetooth(TM) to your headset or car stereo. The on-screen layout is not programmable.CameraThis is more than just a camera - the remote pod includes the accelerometers. It records up to 30fps in 1080p HD in a 140° field-of-view. It must be mounted facing forward, high up, and centered on your windshield. An on-screen guide will help you align it. The camera contains the accelerometers and very powerful processing software integrates the video into Catalyst's coaching and data. Playback is available on the Catalyst screen with speed and lap times already in sync.CoachingTo unlock all of the coaching features and data you will need to select the Advanced setting. There is also a Basic setting that does not provide as much feedback. During your session, the real-time display is referencing current session data only. However, post-session review can include data from multiple sessions. Catalyst is looking for patterns in your driving to map out where you were fast and opportunities to try a different line, brake less, or carry more speed. The only voice currently available is a Siri-like female voice. Lap time differential is displayed as either red (slower), green (faster), or black (no change). From a student/novice perspective you may want to have an advanced driver/instructor set baselines in your car first. Then overlay that data with your own driving. This way Catalyst can see the full potential and make recommendations. It's important not to "chase" a lap time but to know what is capable and make incremental improvements to get there. Catalyst will never make a recommendation that hasn't been previously successful.Analysis & ReviewCatalyst compiles all of its data to form a True Optimal Lap. This is your best possible lap using all of the data you provided in your sessions. True Optimal Lap is determined not just by lap and sector times but by analyzing your best lines through corners and sectors and using the camera feed to identify track limits. Catalyst retains your track data over a 4-day period so you can pack in a full weekend of driving with progressive coaching and analysis. Post-session data is reviewed through the screen or through the Garmin Connect(TM) smartphone app, including video. Export of data or video files to a laptop is not currently supported nor is it needed. Everything you need is self-contained in the tablet. Catalyst works best when used as a standalone tool to review performance and make adjustments while at the track. IN THE BOX: Garmin Catalyst 32GB microSD pre-installed under covered compartment (auxiliary card slot on the side of the Catalyst device is externally accessible for memory expansion) Remote Cam with polarized lens cover Remote Cam 3.5 meter cable Heavy-duty vehicle suction cup Powered magnetic mount Two 1” connecting arms 1” arm connector Cable clips Socket power cable Documentation INCLUDED ACCESSORIES: One-inch ball adapter screw down mount USB data cable 12V bare wire vehicle power cable Additional Remote Cam adhesive Continue reading to see how and why the Garmin Catalyst Driving Performance Optimizer is unlike anything you've ever experienced. Heck... it's unlike anything you've ever even thought possible!
-10% sale
Stilo ST5 Hydration Kit
Stilo Stilo ST5 Hydration Kit $38.11 $42.34
Stilo ST5 Helmet Hydration Kit Hydration bite-valve kit designed specifically for the Stilo ST4 and ST5 helmet. KIT INCLUDES: (1) Male hydration connector (1) Female hydration connector (1) Hydration tube (1) Bite valve
MP-1029M Girodisc Magic Pads for Audi-Lamborghini 8 Piston Caliper - Front
Girodisc MP-1029M Girodisc Magic Pads for Audi-Lamborghini 8 Piston Caliper - Front $250.00
Girodisc Magic Pads for Audi/Lamborghini 8 Piston Caliper (Front) Girodisc "Magic Pads" are the solution to your squeaky, dusty, expensive factory pads. They have less dust than typical factory pads and much less than typical performance pads. You won't be cleaning your wheels nearly as often. Additionally, they have great initial bite, something less expensive pads are lacking. But the real reason people like our pads so much, they are the "silver bullet" to brake noise problems. Magic pads are a semi-metallic composition that is easy on the rotors and the wallet. We recommend always replacing pads as a whole car set when switching compounds.As a service to our customers, we install wiring in the front pad set to facilitate use of the factory pad wear sensor system. All magic pads come with our anti-noise shields pre-installed, included in the price.
-10% sale
Stilo Cheek Pads
Stilo Stilo Cheek Pads $81.37 $90.41
Stilo Cheek Pads Replacement cheek pads for Stilo ST5 / ST5.1 helmets help you customize your helmet to provide the perfect fit!
AiM Sports KA 50 psi Boost-Vacuum (Absolute Pressure) Sensor
AiM Sports AiM Sports KA 50 psi Boost-Vacuum (Absolute Pressure) Sensor $159.99
AiM Sports KA 50 psi Boost/Vacuum (Absolute Pressure) Sensor This "absolute pressure" sensor is ideal for measuring vapor (gas) pressures, from intake boost to crankcase pressure. The 50 psi pressure range is based on perfect vacuum (i.e., from 15 psi below atmospheric pressure to 35 psi above). This sensor is marked "0-50psiA" to differentiate it from the standard 0-50 psi sensor (marked "0-50psiSG"), which does not measure vacuum. KA pressure sensors are more robust than VDO-style pressure sensors, but they should still be isolated from engine heat and vibration whenever possible. It is compatible with these AiM products: MyChron5 MXL MXL 2 MXG MXS MXM EVO3 EVO4 Features 1/8" NPT male threads.
Girodisc A1-220 2 piece floating rotors for the BMW M2 M3 and M4 racing rotors replace OEM rotors for track days.
Girodisc A1-220 Girodisc 2pc Front Brake Rotors (BMW F8x M2, M3, M4) $1,400.00
Girodisc A1-220 Two Piece Floating Front Racing Brake Rotors Girodisc Rotors to Replace the Front Rotors on the Following Cars: BMW F80 M3 including CS with optional carbon ceramic brake package (gold calipers) BMW F82 M4 including CS with optional carbon ceramic brake package (gold calipers) BMW F87 M2, M2 Competition & M2 CS with red or silver calipers BMW F87 M2 CS with optional carbon ceramic brake package (gold calipers) High Performance Brake Rotors to Replace Your Fragile BMW Rotors Whether you have a BMW M2 with red or silver calipers and drilled rotors or a BMW M2, M3, or M4 with gold calipers and the OEM CCB, this Girodisc floating iron rotor system is a direct replacement for your BMW front rotors. No modifications to your car are necessary. The 400mm diameter rotors will bolt directly to your BMW and work with the original red, silver, or gold calipers (depending on your model) perfectly. By upgrading your BMW CCB brakes with lightweight high performance iron replacements, your factory bias is maintained as well as your ABS efficiency. The central hat section of the Girodisc rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's proprietary American-made cast iron and machined from start to finish in house at Girodisc. The disc utilizes a curved vane design, developed in racing to act as a centrifugal pump forcing cooling air through the disc. The disc and hat are joined by a floating mount system using 12 high-strength alloy steel drive pins manufactured by Girodisc in the USA and cadmium plated for long-lasting corrosion resistance. The drive pins bear the braking load while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side, allowing the rotor to grow with heat expansion while eliminating the rattle typically associated with floating rotors. A floating rotor will also self-center between the pads. Once your Girodisc system is in place, you can simply replace the cast iron discs as needed. Sold/priced per pair.
Girodisc A2-220 2 piece floating racing rotors for BMW M2 M3 M4 red silver or gold calipers for track days and HPDE
Girodisc A2-220 Girodisc 2pc Rear Brake Rotors (BMW F8x M2, M3, M4) $1,300.00
Girodisc A2-220 Two Piece Floating Rear Racing Brake Rotors Girodisc Rotors to Replace the Rear Rotors on the Following Cars: BMW F80 M3 including CS with optional carbon ceramic brake package (gold calipers) BMW F82 M4 including CS with optional carbon ceramic brake package (gold calipers) BMW F87 M2, M2 Competition & M2 CS with red or silver calipers BMW F87 M2 CS with optional carbon ceramic brake package (gold calipers) High Performance Brake Rotors to Replace Your Fragile BMW Rotors Whether you have a BMW M2 with red or silver calipers and drilled rotors or a BMW M2, M3, or M4 with gold calipers and the OEM CCB, this Girodisc floating iron rotor system is a direct replacement for your BMW rear rotors. No modifications to your car are necessary. The 380mm diameter rotors will bolt directly to your BMW and work with the original red, silver, or gold calipers (depending on your model) perfectly. By upgrading your BMW CCB brakes with lightweight high performance iron replacements, your factory bias is maintained as well as your ABS efficiency. The central hat section of the Girodisc rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from Girodisc's proprietary American-made cast iron and machined from start to finish in house at Girodisc. The disc utilizes a curved vane design, developed in racing to act as a centrifugal pump forcing cooling air through the disc. The disc and hat are joined by a floating mount system using 12 high-strength alloy steel drive pins manufactured by Girodisc in the USA and cadmium plated for long-lasting corrosion resistance. The drive pins bear the braking load while maintaining the axial and radial float between the hat and disc. The pins are secured by class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side, allowing the rotor to grow with heat expansion while eliminating the rattle typically associated with floating rotors. A floating rotor will also self-center between the pads. Once your Girodisc system is in place, you can simply replace the cast iron discs as needed. Sold/priced per pair.
Pagid 4924 in racing brake compounds for the Porsche 991 GT3 GT3RS GT2Rs for track days and road racing from Thunderhill
Pagid Pagid Racing Brake Pads No. 4294 $539.00
RSL 29: Pagid RS29 (Yellow) is the world-leading endurance brake pad used by most of the winning teams in motorsport. Although designed primarily for endurance racing, many competitors use this material successfully for sprint and short distance races also. RSL29 has also found favor in the growing track day market due to the level of control, good cold performance, long life and low disc wear. RSL 1: Pagid RSL1 has a high ceramic content with superior thermal insulation and higher heat resistance than metallic pad compounds. They feature excellent pad wear under endurance conditions, excellent rotor life, and are less aggressive than RST pads with excellent brake balance and modulation RST 1: Pagid RST1 is a high average friction, aggressive pad with instant pedal response, quick release, a firm pedal at all temperatures, and a progressive torque curve. Suitable for applications with high down-force and/or very high grip. RST 3: Pagid RST 3 is a medium-high friction metal-ceramic compound containing steel fibers and is therefore the perfect complement of the RST product family. It excels with its low heat conductivity. Rally on tarmac and gravel, GT cars, touring car and prototype circuit racing, formula cars and club racing. Wide range of applications due to its combination of bite, friction and controllability.
Pagid Racing Brake Pads No. 4908
Pagid Pagid Racing Brake Pads No. 4908 from $605.81
RSL 29: The Pagid RSL29 (Yellow) is the world-leading endurance brake pad used by most of the winning teams in motorsport. Although designed primarily for endurance racing, many competitors use this material successfully for sprint and short distance races also. RSL29 has also found favor in the growing track day market due to the level of control, good cold performance, long life and low disc wear.
A1-032 Girodisc 2pc Front Brake Rotors (OEM PCCB)
Girodisc A1-032 Girodisc 2pc Front Brake Rotors (OEM PCCB) $1,300.00
Thunderhill is an authorized dealer for Girodisc products. As one of the largest stocking dealers in the country, we ship most products the same or next business day to ensure we meet your delivery deadline.This Girodisc system upgrades your OEM PCCB brakes to a 350mm two-piece steel disc and aluminum hat. This two-piece "floating rotor" design will bolt directly to your Porsche front and work flawlessly with the OEM calipers.Upgrading your brakes to lightweight, high-performance Girodisc rotors, you maintain the factory brake bias and ABS effectiveness. Much lighter than the OEM rotors, Girodisc rotors reduce rotational and unsprung mass giving you stronger braking and faster suspension response.Combined with Pagid or PFC performance brake pads and Thunderhill RF-1 racing brake fluid, Girodisc rotors are the ultimate solution to overheated, cracked, warped rotors that result from high-performance driving.The central hat of the rotor is made from 6061-T6 aircraft aluminum. The disc is manufactured in the USA from the same cast iron used by professional racing organizations. Its curved-vane design, developed in racing, acts like a centrifugal pump forcing cool air through the disc.The disc and hat mount together through a floating mount system using ten cadmium plated, high-strength alloy steel drive pins manufactured by Girodisc. These drive pins transfer braking load while maintaining axial and radial float between the disc and hat to allow for heat expansion. Anti-noise spring washers eliminate the noise typically associated with floating rotors.This two-piece Girodisc design allows for disc-only replacement, reusing the hat to minimize maintenance costs.Sold/priced per pair.
A1-203 Girodisc 2pc Front Brake Rotors (350mm)
Girodisc A1-203 Girodisc 2pc Front Brake Rotors (350mm) $1,300.00
PORSCHE 718 CAYMAN/BOXSTER S & GTS The Girodisc system is a direct replacement for the OE disc (using the provided caliper spacers). The Girodisc rotor is slightly larger than the OEM rotor at 350mm versus 330mm, providing markedly greater braking force and incredible cooling capacity. The central hat section of the Girodisc rotor is made from strictly U.S. sourced 6061-T6 aircraft specification aluminum. The disc is made from their own proprietary cast iron, poured in the USA and machined from start to finish in house at Girodisc. The rotor utilizes a curved vane design, developed in racing to act as a centrifugal pump to force cooling air through the disc. The rotor and hat have a floating mount system, which utilizes 10 high strength alloy steel drive pins, manufactured by Girodisc in the USA to their own specifications and cadmium plated for a long lasting corrosion resistance. These pins take the load from braking while maintaining the axial and radial float between the hat and disc. The pins are secured by Class 12.9 cap screws with hardened washers. In order to keep the rotors from making noise when cold, the pins are mounted with anti-noise spring washers on the rotor side which allow the rotor to grow with heat expansion but eliminate the rattle and noise associated with floating rotors. This float also allows the rotor to self center between the pads. Once the Girodisc system is in place, simply replace the cast iron rotor rings when needed. Sold/priced in pairs.
A2-032 Girodisc 2pc REAR Brake Rotors (OEM PCCB)
Girodisc A2-032 Girodisc 2pc REAR Brake Rotors (OEM PCCB) $1,300.00
The Girodisc system is an upgrade to a 350mm two-piece steel rotor and aluminum hat combination, a direct replacement for the OEM PCCB brake discs. The two-piece floating disc will bolt directly to the car and work with OEM calipers perfectly. By upgrading your brakes with these lightweight high-performance iron replacements, you can eliminate the risk of cracking or breaking your expensive PCCB rotors at the race track. When used with Pagid or PFC performance brake pads and Thunderhill RF1 racing brake fluid (also available from Thunderhill), you have an amazing solution to overheating, cracking rotors. The central hat section of the disc is made from 6061-T6 aircraft specification aluminum. The disc is manufactured in the USA from cast iron, made to the same specification and with the same material used by professional racing organizations. The rotor's curved-vane design was developed in racing and acts as a centrifugal pump to force cooling air through the disc. The rotor and hat mount together through a floating mount system which utilizes 8-10 high strength alloy steel drive pins manufactured by Girodisc in the USA to their own specifications and are cadmium plated for corrosion resistance. The alloy drive pins transfer the load from braking while maintaining the axial and radial float between the disc rotor and hat. The pins are secured by Grade 12 cap screws with hardened washers and mounted with anti-noise spring washers to allow for heat expansion while eliminating the rattle and noise typically associated with floating rotors. The two-piece Girodisc design allows for rotor-ring only replacement to minimize future replacement costs. Priced per pair
Sabelt Door Pulls
Sabelt Sabelt Door Pulls $25.00
Sabelt Door Pulls This quality door pull strap mounts to a 9.5mm bolt hole. Made from plyable webbing, 220mm (7") long and 25mm (1") wide. We have found that these can also function well as grab handle or as a keychain. Available in black only.

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