Rear Suspension Springs
Rear Suspension Function & Importance
A motorsport vehicle’s rear suspension system serves as the critical link between the chassis and rear wheels, controlling wheel movement, maintaining traction, and managing power transfer under extreme racing conditions. This system relies on precisely engineered rear suspension springs that must handle acceleration forces, braking loads, cornering stresses, and impact absorption from jumps and rough terrain. Among suspension components, rear springs play a fundamental role in maintaining vehicle stability, controlling weight transfer, and ensuring optimal tire contact with the racing surface during aggressive maneuvers.
Rear Spring Benefits & Performance
Well-designed rear suspension springs significantly enhance traction during acceleration, improve cornering stability, and provide controlled weight transfer characteristics essential for competitive racing performance. Properly tuned rear springs maintain optimal ride height, prevent excessive squat under acceleration, and deliver consistent handling characteristics across varying track conditions. When selecting rear suspension springs, manufacturers must consider factors such as vehicle weight distribution, suspension geometry, spring travel requirements, racing discipline, and the specific performance demands of different motorsports applications.
Spring rates and load characteristics are critical, as they determine the force needed to compress the spring and the vehicle’s response to acceleration, braking, and cornering inputs. By selecting the appropriate rear suspension springs, manufacturers can achieve peak vehicle performance and provide racers with the controlled, predictable handling characteristics necessary for competitive success.
Anderson Quality Spring Manufacturing Partnership
At Anderson Quality Spring Manufacturing, we specialize in working directly with motorsports manufacturers to produce narrow-tolerance rear suspension springs that meet the unique demands of the racing industry. Our domestic manufacturing facility in Canby, Oregon, ensures reliable supply chains, eliminates tariff complications, and provides responsive support for custom rear suspension spring development across motocross, motorcycle, ATV/UTV, racing, and on / off-road applications.
We collaborate with industry leaders like BBR Motorsports, Vanasche Motorsports, Enzo Racing, PR2 Racing, GP Suspension and others who serve both small custom manufacturers and major name brands. Our commitment to American manufacturing heritage ensures that every rear suspension spring is produced in our Oregon facility, providing manufacturers with the reliability and supply chain security that domestic production offers. Our rear suspension springs are manufactured using high-quality materials and precision processes, ensuring durability and performance under extreme racing conditions while eliminating the logistics complications of international sourcing.
Materials & Manufacturing Process
Through extensive testing with various materials and manufacturing processes, Anderson Quality Spring Manufacturing has developed repeatable production methods to ensure the highest quality rear suspension springs for off-road, street, and racing applications. These critical suspension components face extreme demands, performing flawlessly under high-speed cornering, aggressive acceleration, hard braking, and the impact forces generated by jumps and rough terrain.
Our rear suspension springs are designed to provide optimal load control and consistent performance characteristics, engineered to withstand the cyclical stresses of competitive motorsports while maintaining precise spring rates throughout their service life. Each spring is manufactured using premium, high-tensile materials selected for their fatigue resistance and consistent performance characteristics. Our springs are built to deliver reliable performance, lap after lap, race after race.
Racing Applications & Customization
In racing, off-road, and competitive motorsports applications, “tuning” rear suspension components is critical to giving racers a competitive edge and manufacturers the ability to optimize vehicle performance for specific applications. Customization is essential, as each application’s needs vary based on factors such as:
- Vehicle weight distribution and center of gravity
- Racing discipline and terrain characteristics
- Suspension travel requirements and geometry
- Power delivery characteristics and torque curves
- Spring rate and damping integration
- Environmental conditions and temperature ranges
Understanding the benefits of different rear spring configurations and rate characteristics enables manufacturers to achieve better balance, control, and competitive performance in their vehicle platforms.
Precision Manufacturing & Tolerances
Our expertise in producing rear suspension springs with tighter tolerances allows retailers, wholesalers, race teams, and OEM manufacturers to achieve precise customizations that maximize suspension performance while accounting for compression, rebound, and load cycling characteristics. These precision adjustments ensure that manufacturers benefit from optimal performance tailored to their unique vehicle specifications and racing requirements.
Manufacturing rear suspension springs with exceptional precision requires meticulous control over specifications like wire diameter, coil geometry, spring rate consistency, free length variation, and load characteristics. At Anderson, we leverage in-house engineering capabilities, rigorous cycle testing protocols, and extensive knowledge of raw materials to achieve market-leading tolerances that exceed industry standards. This commitment to precision ensures our rear springs deliver consistent, reliable performance for every manufacturing application.
Industry Standard Spring Rate Tolerancing: ±10%
Anderson Spring Rate Tolerancing: ±3%
Technical Specifications & Applications
Selecting the appropriate specifications for your rear suspension springs is crucial for optimal vehicle performance. Our manufacturing capabilities include:
- Wire Diameter Range: 0.040″ – 0.625″
- Outside Diameter Range: 0.500″ – 5.000’
- Free Length Range: 2.000″ – 30.000″
- Spring Rate Range: 10 – 2000 lbs/in
- Load Capacity: Up to 5000 lbs working load
- Material Options: chrome silicon
- Surface Treatments: Shot peening, powder coating stress relieving
Common Rear Suspension Issues
Common rear suspension issues can significantly affect vehicle performance, handling characteristics, and overall competitive performance. Excessive squat under acceleration, poor cornering stability, and inconsistent ride height are common problems that properly designed rear suspension springs can address. Premature spring fatigue, rate degradation, and handling inconsistencies are issues that precision-manufactured rear springs help prevent.
A well-designed rear suspension system incorporating proper spring rates and load characteristics can help prevent these issues, providing smooth and confident racing performance across varying track conditions. Regular maintenance and inspection protocols can also help identify and address spring-related issues before they become major problems affecting vehicle performance. Upgrading rear suspension systems with custom spring solutions can significantly improve vehicle performance and provide manufacturers with competitive advantages in their market segments.
Manufacturing Excellence & Quality Assurance
Our Canby, Oregon factory features a dedicated team of experts specializing in rear suspension spring manufacturing for motorsports applications. From initial design consultation through prototype testing, product refinement, quality assurance, and on-time delivery, we ensure that every rear suspension spring receives focused attention and meets the demanding requirements of competitive motorsports.
Whether you’re a small custom manufacturer or a major industry brand, Anderson Quality Spring Manufacturing serves as your trusted domestic partner for high-performance rear suspension springs engineered for motorsports demands. Our springs are manufactured using high-quality materials, including lightweight chrome silicon spring steel, stainless steel, and specialized alloys, ensuring durability and performance under extreme racing conditions while providing the supply chain reliability that domestic production offers.
Partnership & Support Services
We pride ourselves on offering products that are reliable and meet the highest standards of quality and performance while providing the responsive support that domestic manufacturing enables. Our comprehensive services include:
- In-house engineering and design consultation
- Reverse engineering from samples
- Prototype development and testing
- Shot peening and stress relieving
- Custom powder coating and finishing
- Specialized packaging and labeling
- MRP system integration for B2B customers
- Responsive domestic technical support
Anderson Quality Spring offers full-service manufacturing of custom rear suspension springs for the motorsport industry. As a domestic manufacturer, we provide reliable supply chains, responsive support, and freedom from tariff complications that international sourcing presents. We can work together to manufacture the custom rear suspension spring components you need for your unique racing applications. Submit your drawings and specifications today! We look forward to working with you to develop superior rear suspension spring solutions.
BRING US YOUR DESIGN
AQS offers full-service manufacturing of springs and wire forms. We can work together with you and your team to manufacture the custom components you and your team require for your unique applications. Submit your drawings and get started today!