The Sikky bar also has this bracket for the factory ride height sensor.
We opted to get a new Sikky rear bar because on the new bar, the end links are shorter which would give us a little bit better geometry with the car’s lower ride height. The Sikky bar is 19mm in diameter vs the stock 17. The bar is also straighter which inherently makes it stiffer than the stock rear bar.
The Sikky rear bar is also 3-way adjustable. When adjusted in the furthest back soft hole, the bar is about 50% stiffer than stock or about the equivalent of the 18mm F-Sport optional bar, the other common rear IS-F bar on the market. The middle hole is around 90% stiffer than stock and the stiffest position is 170% stiffer than stock.
The Sikky end links are corrosion-resistant stainless and have a billet center that is reverse threaded so the preload can be adjusted while they are on the car. The length can also be adjusted for minimum angularity while moving them from hole to hole. On the current production bars, they are shorter than the ones on our old 12-year-old rear bar.
As the old bar did, the new bar fit perfectly and we ended up running it in the middle hole instead of the softest hole where it was. In the position, the bar has 90% or so more roll resistance than stock.
3 comments
It’s strange to me how endlinks are never in double shear on both sides. I imagine this is to prevent binding, but couldn’t you just design it with a clevis on the swaybar end?
Seems like it would improve the response of the bar.
The heim jointed end links used (above pic) have no give when loaded, and offer the same response as a double shear link would.
Some manufacturers rate their bars, in lb/in, usually done on a test rig with no bushings, one end pinned and loaded on the other end.
On a custom application with a 1.13″ dia bar with long arms, we found that the rate based on the Puhn formula was almost twice the rate measured rate with poly bushings. We determined the difference was due to rigid body deflection of the bar, that only needed a few mils of deflection at the bushings.