The coil springs are connected by a link-top fabrication which spreads the weight load per spring more evenly than an 8-way hand tie base. The feel and ride of the seat can be altered as required by the selective use of springs of the proper wire gauge. Also, the height of the coil spring, the number of turns, and coil spring location on the bar can be adjusted to the customer's needs.

The Rigid Bar Drop-In Construction is also one of the easiest bases to install. Just set the construction in place within the frame and secure the bars to the frame, and you are ready to install the next one. In most cases, the Rigid Bar Construction can be fitted directly into a manufacturer's current frame - and if that manufacturer is using sinuous wire, the rigid bar can usually provide a cost savings by cutting down on the amount of wood used in a frame. Select from full size or modular units.

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