The joint between A-pillar and front chassis will be push and twist by the greater shock of impact and drag force, causing damage on chassis.
Ultra Racing’s Fender bar will spread out the force and strengthen the section, prevent further damage and offer stable handling. Recommend for user of sport absorber.
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.
All our raw materials has been made and tested with satisfactory result.
MILL / TEST CERTIFICATE (Chemical Composition)
- 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 Ultra Racing 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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