These are just the mounts - you will also need to purchase the HRP UL Carbon extensions as well as these mounts, available HERE
We are excited to introduce our new ultra-lightweight (3.7g/pair) revolutionary body mounting system for use with horizontal rear body pillars!
Our original HRP body mount system has taken the world by storm and thousands of racers have chosen to mount their bodies the better way! After months of feedback from riders around the world as well as our team riders including Marc Rheinard, Atsushi Hara, Yannic Prumper, Akio Sobue and Nicholas Lee, we set out to further improve what was already an amazing product.
The development of the new HRP ULTRA LITE!
Following the popularity of the HRP Pro, we set out to make a great product even better. Thanks to feedback from racers, we knew we could reduce the weight even further while maintaining sufficient strength. We managed to reduce the weight of the entire HRPUL set by a massive 50%! The new HRPUL weighs just 1.7g per assembly! That's even lighter than using a vertical body post!
The HRP UL still features the step adjustment for easy adjustment and a total vertical height adjustment of 7mm. Only one screw is now used to reduce weight. This screw is made from grade 5 titanium for maximum strength and minimum weight. The carbon extension is still kept straight by the alignment nubs around the screw.
The final step in development was a game-changing one by allowing the use of only one type of carbon extension per car! We built an offset into the mounts, meaning the same mount AND carbon can be used between Zoo and Xtreme bodies. Simply swap the mounts left to right and the carbon extension left to right between bodies! The mounts are laser engraved so you can easily see which way everything fits.
Advantages of our HRP ULTRA LITE system
The handling benefits of horizontal rear body pillars are undeniable. The downforce transferred to the rear of the body results in significant handling benefits as the downforce is distributed across the chassis and the body sits more snug when transitioning from left to right.
However, some of the main issues with this system are durability, rigidity and adjustability.
Durability: The holes in the Lexan are always located near the skirt, meaning they can easily be ripped out or damaged in even the smallest accidents.
Stiffness: This area of the body is very thin and can bend under load, causing downforce to not be distributed as efficiently.
Adjustability : The height adjustability of the body depends exclusively on the attachment to the chassis, which is not necessarily adjustable in fine increments or easy to adjust.
Our new Horizontal Rear Post Body Mounts improve ALL of these areas!
The durability of the body is significantly increased as it now has no more holes in the rear part of the body. The connection is made via the 2mm thick carbon extension and the 7075 aluminum bracket which is connected directly to the wing strut.
Rigidity has been dramatically improved as the body is now attached to the car via a solid, extremely stiff combination of carbon fibre and 7075 aluminium. This ensures maximum downforce transfer to the rear of the car and ensures the aerodynamics of the body/wing are fully transferred to the car. Use our 7075 Ultra Lite Touring Car Wing Buttons for maximum rigidity of your HRP UL system and they weigh just 0.26g each!
Adjustability is paramount and our HRP UL can be adjusted in 1mm increments with a total travel of 7mm. Simply loosen the screws, slide the carbon extension up or down into the other notches and tighten firmly. It is important to note that the screws do not need to be tightened as much as previous versions as the locking tabs prevent slipping in the event of a fall.
All of this gives you an absolutely perfect, lightweight solution to transfer the maximum amount of downforce to your car, while keeping the body more rigidly attached to the rear of your car than ever before. The mount is very stable, so you can stay on the track in case of accidents and not have to replace a body just because the holes have been damaged or ripped out. The adjustability these mounts offer is a necessity to adjust the pitch and height of your body.
Our new Horizontal Rear Post Body Mounting Set ULTRA LITE can be transferred from body to body and securely mounts your wing, as well as bracing the wing to protect against deformation at high speed and in the event of an accident.
The best part is that it makes body assembly an absolute breeze! No more drilling rear holes, just drill the front holes and screw the mounts on! We recommend using body pins on both sides of the body to ensure maximum rigidity.
Compatible bodies for the HRP ULTRA LITE
The HRP UL system fits the Xtreme Twister & Twister Speciale , all Zoo Racing bodies, LensBodies and the Protoform P63.
Compatible vehicles for the HRP ULTRA LITE
Different extensions are required for different vehicles.
Check below to see what type of extension is needed for your vehicle!
TYPE 1 : A800R, MTC2R, SP1, TC10/3
TYPE 2 : MS1.0, ONE.05
TYPE 3 : X4'23/24, A10
TYPE 4 : Mi9, XQ11 & XQ3S, RX10SR3.0R
TYPE 5 : TRF421, IF14-2
Characteristics:
- Tuned for maximum downforce, durability, stiffness, appearance and adjustability
- 50% lighter than HRP Pro at only 3.7g/pair
- Suitable for all Zoo Racing and Xtreme, LensBodies, Bittydesign Hyper HR and Blitz Roadster bodies
- Only one carbon extension required per car, with brackets that have the body offsets integrated.
- Grade 5 titanium screws included for maximum strength and minimal weight
- Integrates with our existing CBS-HRPP and FCBS-HRPP anti-tuck options
- Expansion versions for all common touring cars
- No holes in the body required for super easy body assembly
- Brackets made of 7075 black anodized aluminum for maximum strength and minimal weight
- Mounting hardware included, but NO carbon extensions required for use (available here)
Installation instructions:
ZOO:
- Mount the aluminum brackets into the wing struts with the Z facing outward on each side of the body.
- Attach the carbon extension to the bracket with the offset facing outwards. Fasten it with the included size 5 titanium screw in the middle position.
- Check that the body/mount slides onto the rear posts. If they are stuck, loosen the carbon extension slightly, move it in the desired direction and tighten it back up. The body posts could also be bent, just bend them in the desired direction to ensure the body can move freely up and down on the rear posts.
- Adjust the rear of your body to the correct height by loosening the Gr.5 screw and moving the carbon extension up or down and retightening the screw.
XTREME:
- Mount the aluminum brackets into the wing struts with the X facing outward on each side of the body.
- Attach the carbon extension to the bracket with the offset facing outwards. Secure it with the included size 5 titanium screw in the middle position.
- Check that the body/mount slides onto the rear posts. If they are stuck, loosen the carbon extension slightly, move it in the desired direction and tighten it back up. The body posts could also be bent, just bend them in the desired direction to ensure the body can move freely up and down on the rear posts.
- Adjust the rear of your body to the correct height by loosening the Gr.5 screw and moving the carbon extension up or down and retightening the screw.
