K•Prene® has become a great option for numerous applications due to ongoing efforts to reduce weight and increase speed and handling without sacrificing anything in the process. Its growing use makes perfect sense once you consider its characteristics, including the ability to absorb shock, strong, lightweight, fluid and abrasion resistance. Actually manufactured from urethane, we produce some of the highest performing spring rubbers available to the automotive racing industry.
- Use dims, between coil springs to determine part size.
- Cut part and feed in between coil springs.
- Approximate clearance between bottom of coil spring and top of rubber radius is 1/4″.
- Pricing Current as of 2020
Below is a sample of our lineup of spring rubbers. We offer many different styles to suit your dampening needs. Spring rubbers can be used on the front, rear or both depending on what custom rate you are after. This makes modifying the rates per track, conditions and speeds easier than ever.
Spring Rubber Half Spacers
These unique spring rubbers can help fine tune the geometry and spacing of coils under compression. This type of spacer will be best used in a smooth road race type of situation. These spacers are custom only, If you have dimensions and a print we can help you with making a mold and pouring it in a specific color and durometer to meet your needs. Best to contact us for a quote directly.
Front and Rear Coil Spring Spacers
These are our most common spring spacers. They are designed to be cut on one side and inserted into the coil depending on your spring OD and thickness between coils. These can be custom poured with a pull molded into it for quick tune ability at the track or while pitting the vehicle. Feedback from the driver or un-predictable condition changes will allow these spring rubbers to be changed out when changing tires or fueling up. Durometers can be custom made as well as colors for quick ID or race team color coordination. These coil spring spacers once inserted are safely in place and can be used for many types of racing and road conditions. These are rugged and long lasting.
Coil Spring Top Insulator
These can be poured in any size you see on our list. Generally these are used in the rear of the vehicle. They are poured with one half remaining flat and are generally used for a between chassis and spring insulator. Reduces the amount force on the chassis and protects it in the process. These can be used to raise the height of the rear end for special conditions or bumpier tracks.
|Spring Rubbers for 5″-5-1/2″ Springs|
|Coil Over Spring Rubbers for 3″-3-1/2″ Springs|
Additional Uses for Urethane in the Automotive Industry
There are many K•Prene® applications for the automotive industry. They weigh less than existing metal parts and have significant tensile strength.
- Sway Bar (Stabilizer Bar) Bushings
- Control Arm Bushings
- Leaf Spring Bushings
- Strut Rod Bushings
- Shock Bushings
- Bump Stops & Street Stops
- Shock Reservoir Isolators
… or many other custom applications that your automobile, truck, motorcycle or snowmobile needs may require.