Material & Design
Research & Development
 
In order to reach the desired performance of Ultra Racing products, we constantly monitor the quality of our products not only during the production stage, we also conduct strict performance testing afterwards.

During the development phase of Ultra Racing bars, we ensure the products are accordance to our design and development philosophy. We conduct real on-road performance test and well as on-track testing. In order to obtain data, we also invented three testing jigs, namely Bending Test Jig, Torsion Test and Flex Test Jig, to test the performance of our products as well as the competitors’.

The strut bar is bolted to the jig to simulate the actual situation on the vehicle chassis. For torsion test jig, torque is applied to one side of the bar, and the amount of twist is recorded. Torque used was calculated and fixed at 6.6kg/m.

For compression test jig, forces are applied along both sides of the bar. Maximum compression force is recorded to study the structure of various kind of designs that the bar can take under different kind of conditions or during an impact. We use a hydraulic pump to compress at set pressures and record the results

For flex test jig, torques are applied on the ends of the bars to simulate the performance of the bar under chassis flex conditions. Torque used for the experiment is fixed at 8kg/m.
 
Compression Test
   
  Brand : UR (Civic EK 2 points)
  Bracket : Non Adjustable
  Bracket thickness : 4mm
  Weight : 1.5 KG
  Compression Impact : 3mm (100 psi)
     
 
       
Brand : XXX (Civic EK 2 points)
  Bracket : Adjustable
  Bracket thickness : 4mm
  Weight : 1.4 KG
  Compression Impact : 70mm (100 psi)
     
 
 
Flex Test
   
  Brand : UR (Civic EK 2 points)
  Bracket : Non Adjustable
  Bracket thickness : 4mm
  Weight : 1.5 KG
  Flex : 50mm (8 kg/m)
     
 
       
Brand : XXX (Civic EK 2 points)
  Bracket : Adjustable
  Bracket thickness : 4mm
  Weight : 1.4 KG
  Flex : 50mm (8 kg/m)
     
 
 
Torsion Test
   
  Brand : UR (Waja 2 points)
  Bracket : Non Adjustable
  Bracket thickness : 4mm
  Weight : 1.8 KG
  Torsion : 47mm
     
 
       
Brand : XXX (Waja 2 points)
  Bracket : Adjustable
  Bracket thickness : 4mm
  Weight : 2.0 KG
  Torsion : 85mm
  Brand : CCC (waja 2 points)
  Bracket : Adjustable
  Bracket thickness : 3mm
  Weight : 1.4 KG
  Torsion : 210mm
     
 
 
Witnessed By Extremekars Magazine
We invited Extremekars Magazine journalists to witness
our demonstration conducted at UR head office.
 
 
Material Specification & Design
 
Every materials used are carefully selected to ensure the best performance and safety. The brackets are made of 4mm to 5mm steel plates, while the hollow steel tubes and oval tubes are of 1.2mm to 1.6mm thickness. These materials are selected to ensure the bars are rigid and strong to maintain constant geometry at all times, yet safe enough to crumble during an impact for safety reason

To protect against the elements & corrosion, we powder coat all our bars to an aesthetically pleasing white color.

 
Mill / Test Certificate (Chemical Composition) 
 
  Specification
JIS 3101 SS 400  (Japan International Standard)
  JIS G 3141 SPCC SD (Japan International Standard)
  ASTM A 500 Grade A (American Standard)
  BS 1387 ( British Standard)
 
Steel vs Aluminum
Why we use Steel instead of Aluminum?

First, steel is stronger than aluminum for the same size and thickness. In order for aluminum alloys to be at least the same strength as steel, it has to be at least double
the thickness (steel 4mm = aluminum 8mm). When that happens, weight saving is not so apparent anymore. Of course there are also exotic materials and alloys that
can match the strengths of steel, but the cost are astronomically high and therefore not very cost effective to bring into mass production.

 
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