How does that compare to the other poly bushings on the market? How does that compare to the OEM bushings? I'd probably want something roughly the same as the OE.
Regarding OE rubber bushings, note that ride feel and performance on those will change over time, as the rubber wears out. When new, the ride performance will be tightest. As they wear, ride performance will be a bit softer on cornering. When they are ready for replacement, ride performance will be very soft and sloppy on turns. Also, you may hear squealing tires on roll and knocking, which would indicate the rubber has fully degraded and bushings should be replaced.
Polys last longer, of course.
Bushings are rated by hardness using the Shore Rating Scale:
Here's a brief overview of the hardness on polys by formulation. Each formulation has a specific color and shore rating (though some manufacturers have created their own colors.) The control arms with polys we offer featture the imaxle green 85A poly bushings:
General Polyurethane Bushing Characteristics:
Red = Classic (65A Rating) Performs generally like normal rubber-type bushes but with an improved lifespan
Blue = Comfort (80A Rating) Notably harder compound for precision handling whilst not compromising on ride quality
Imaxle Green = (85A Rating) Bit stiffer than blue compound with similar handling - a good blend of stiffness with some softness for ride quality
Orange = Dynamic (95A Rating) used for track/performance purposes, very much a no-compromise bush.
So the green bushes sit between the comfort and dynamic on the harder side.
The slight rise in hardness would not be noticeable in terms of comfort and wouldn't make the ride harsh or bumpy, but would offer a more precise handling characteristic when fitted.
Thx.
