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With chromoly I'm referring to CrMo4 steel (4130 in US). It is steel so it weighs the same as any other grade steel.
A 35x3.0mm bar weighs about 2.4kg/m. and 35x2.0mm bar weighs around 1.6kg/m.
Both the rear and the front bar were about 1m long.
To be honest, I don't really see the benefit of using chromoly in this application because in a blade type stabiliser it is the blade that bends. There is torsional load on the bar (twisting) but nowhere close to the yield strength of "normal" 235 grade steel. (assumption)
A bar made of high tensile steel is not stiffer in any way compared to one made from mild steel. So it flexes, bends etc. just like a bar made from milder steel.
The difference is in the yield strength (when exceeded results in plastic deformation).
So a chromoly bar with same dimensions will twist more before deforming or shearing but the force to bend it to the yield limit of mild steel is the same as of that of bending the mild steel one.
I have a 24mm rear bar that weighs 10lbs
if your rear bar weighs 1.6kg or 3.5lbs, chromoly tube would be a big weight savings, close to 15lbs front and rear. maybe only 10lbs cause the ends are different.
9m made hollow rs bars a couple years ago but they were only 1kg lighter per bar, 4.5lbs savings front and rear.
I have a 24mm rear bar that weighs 10lbs
if your rear bar weighs 1.6kg or 3.5lbs, chromoly tube would be a big weight savings, close to 15lbs front and rear. maybe only 10lbs cause the ends are different.
9m made hollow rs bars a couple years ago but they were only 1kg lighter per bar, 4.5lbs savings front and rear.
The weight was just for the bar...then I have the blades, bearings, bearing housings etc.
I can weigh my set when I remove them from the chassis next week.
If we talk about a conventional swaybars (non blade type) I think the only way to reduce weight is by increasing diameter and reducing wall thickness. Higher grade steel would not help much there in my opinion.
Nice....but those plastic connectors and hanging like that won't survive long. I ran something similar for my cylinder head temp. The sheer heat and vibration they go through made them only last for a year or so.
It's my friends frenchie. I can take some photos and post them up here.
More photos of the evil EVO:
Due note that none of the body parts, including the lights etc. are attached properly. They're just slapped on. They have all been fitted but it always takes a bit of work to re-fit and the parts have been on and off on a daily basis.
04-14-2015, 12:15 PM
