Swift Springs Expands 12-Inch x 3-Inch ID Spring Line with Four New Rates

Swift Springs is excited to announce the expansion of its 12-inch x 3-inch ID racing spring lineup with the addition of four new spring rates: 135 lb/in, 165 lb/in, 175 lb/in, and 185 lb/in. Developed in response to racer demand, these new rates provide additional suspension tuning options for Northeast Modified competitors looking to fine-tune chassis performance.

Built from Racer Feedback

At Swift Springs, many of our newest products begin with conversations at the racetrack. After receiving requests from Northeast Modified racers, our engineering team expanded the popular 12-inch x 3-inch ID spring lineup to include additional rates that better meet the setup demands of today's highly competitive racing environment.

These new additions help fill the gaps between existing spring rates, giving racers and chassis builders more flexibility when dialing in suspension performance for changing track conditions.

More Tuning Options for Better Performance

Suspension tuning is all about precision, and having the right spring rate can make a significant difference in chassis balance, weight transfer, and overall handling.

The addition of these four new rates allows teams to make more refined setup adjustments without compromising the consistency and performance expected from every Swift racing spring.

Whether adapting to varying track surfaces or making incremental setup changes throughout the season, racers now have even more options to optimize their suspension package.

New Spring Rates Available

The expanded 12-inch x 3-inch ID spring lineup now includes:

135 lb/in

165 lb/in

175 lb/in

185 lb/in

These new rates complement Swift's existing lineup, giving racers a broader selection to match their specific chassis and track requirements.

Why Choose Swift Springs?

Every Swift racing spring is engineered to deliver:

Consistent and accurate spring rates

Exceptional durability under demanding racing conditions

Precision manufacturing for repeatable performance

Proven reliability trusted by racers around the world

By continually expanding its product offerings based on racer feedback, Swift Springs remains committed to providing suspension solutions that help competitors maximize traction, improve handling, and achieve more consistent lap times.

Available Now

The new 135 lb/in, 165 lb/in, 175 lb/in, and 185 lb/in springs are currently available through most authorized Swift Springs stocking dealers.

As racer needs continue to evolve, Swift Springs will continue developing innovative products that provide the performance, quality, and consistency required to compete at every level of motorsports.