Swift Springs Short Linear Round Wire Bump Springs: Compact Design. Championship-Proven Performance.

As chassis technology continues to evolve, suspension components must keep pace. That's why Swift Springs developed its Short 1.5-inch Linear Round Wire Bump Spring Series—a compact, high-performance solution engineered to meet the demands of today's asphalt racing setups.

Originally developed through collaboration with race teams and extensively validated in competition, these Short Bump Springs have become a trusted option for racers looking to maximize suspension control while working within increasingly compact suspension packages.

Designed specifically for Super Late Models and Pro Late Models, the Short series delivers the same precision, consistency, and durability Swift Springs is known for in an ultra-compact design.

Built for Modern Asphalt Racing

Every new product at Swift Springs begins with one simple philosophy—racer feedback.

The 1.5-inch Linear Round Wire Bump Spring Series was developed after teams requested a shorter bump spring capable of maintaining true linear performance while fitting modern suspension configurations.

The result is one of the shortest bump springs available, without sacrificing the performance characteristics racers expect from Swift Springs.

Key features include:

• Ultra-compact 1.5-inch overall length
• True linear spring rate throughout the working stroke
• Engineered specifically for asphalt racing applications
• Designed for today's Super Late Model and Pro Late Model suspension packages
• Manufactured from proprietary HS5.TW spring material produced in-house by Swift Springs

Now Available in Higher Spring Rates

As chassis development continues, so does the demand for additional tuning options.

The 1.5-inch Short Bump Spring lineup now includes higher-rate options that give teams even greater flexibility when dialing in rear suspension performance.

Available spring rates include:

• 5000 lb
• 6000 lb
• 7000 lb
• 8000 lb

These higher-rate springs expand the tuning window for teams competing under higher load conditions while maintaining the consistent linear characteristics that make Swift Springs a trusted choice across the racing industry.

Championship-Proven Through Competition

Before becoming a production offering, the 1.5-inch Bump Spring Series underwent extensive on-track testing with race teams throughout a full season of competition.

The results spoke for themselves.

These springs helped teams earn race wins and championship-caliber performances, proving the design under real racing conditions before becoming available to racers everywhere.

That same commitment to testing and refinement continues to drive every product Swift Springs develops today.

Precision Manufacturing from the Ground Up

Unlike many spring manufacturers, Swift Springs controls the entire manufacturing process.

Every 1.5-inch Bump Spring is produced using Swift Springs' proprietary HS5.TW spring steel, manufactured in-house to maintain exceptional consistency, strength, and repeatability.

This level of quality control helps ensure every spring performs exactly as intended—giving racers confidence every time they head onto the track.

Built Around Racer Feedback

The best products often come directly from the race shop.

The 1.5-inch Linear Round Wire Bump Spring Series exists because racers asked for a compact spring that could deliver the performance required by today's evolving setups. Swift Springs worked closely with teams to develop a solution that addressed those needs while maintaining the durability and consistency expected from every Swift Spring.

It's another example of Swift Springs' commitment to building products that evolve alongside modern racing technology.

The Swift Springs Advantage

From front springs and coilover springs to bump springs and specialized racing applications, Swift Springs continues to engineer suspension solutions that help racers stay competitive.

The Short Linear Round Wire Bump Spring Series is available through authorized Swift Springs dealers. If your local dealer doesn't currently stock a specific rate, simply reference the part number (SBSXXXX SH) from the latest specification sheet, and they can help get the springs you need.

New Product Release Series

The 1.5-inch Linear Round Wire Bump Spring Series continues Swift Springs' commitment to developing race-winning suspension components based on real-world racer feedback. By expanding the lineup with higher spring rates and maintaining the same precision manufacturing standards, Swift gives racers even more options to fine-tune today's demanding asphalt racing setups.