Bump stops
Polyurethane bump stops and jounce bumpers cast to your print by Titan Works in Lansing, Michigan. Progressive-rate designs, molded-in hardware, prototype through production.
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What they do
A bump stop, or jounce bumper, catches the suspension at the end of its travel and dissipates the energy before the frame does. A good one is progressive: soft at first contact so the hit is not felt in the cabin, then firm enough to prevent bottoming out.
Why cast urethane
Progressive rate comes from geometry and material working together. Cast urethane lets a designer use hollows, ribs, and tapers that would be impossible in rubber compression molding, and the material itself has a naturally rising rate under compression. It also survives thousands of full-travel hits without cracking, chunking, or taking a permanent set.
What we bring to it
Titan Works has poured bump stops in high volume for aftermarket suspension kits. We understand how cavity design affects fill and venting on hollow stops, how to mold in a threaded stud or mounting plate, and how durometer changes the feel on a loaded truck versus an empty one.
Typical specifications
- Hardness: 60 to 90 Shore A, with dual-durometer possible
- Geometry: solid, hollow, ribbed, and tapered profiles
- Hardware: molded-in studs, plates, and sleeves
- Color: black standard
- Volumes: single prototypes through high-volume production
If your current bump stop is cracking, going flat, or riding harsh, send a sample and describe the vehicle. We will tell you what we would change.
