BSB Manufacturing Coilover Spring and Shock Assembly

BSB Manufacturing: Circle Track Coilover Spring and Shock Assemblies

BSB Manufacturing, based in Wellington, KS, has spent more than two decades earning a reputation as one of the most trusted names in circle track suspension. When it comes to coilover spring and shock assemblies, BSB brings that same race-proven engineering philosophy to every unit — building components that are designed to survive the brutality of competitive motorsports lap after lap, season after season.

Built for the Demands of Competitive Motorsports

Coilover spring and shock assemblies are among the most critical tuning elements on any circle track car. They integrate the spring and shock absorber into a single, compact unit, allowing teams to fine-tune ride height, spring rate, and damping behavior with precision. BSB’s assemblies are engineered specifically for these high-load, high-cycle environments, where a poorly spec’d coilover can mean the difference between a podium finish and a handling crisis mid-race.

Outlaw Slider and XD Series Coilover Kits

BSB’s coilover lineup centers on two flagship platforms. The Outlaw Slider series is a staple of the circle track paddock, offering coilover eliminator kits that include cups and rod ends and are available in multiple shaft-length configurations — including standard and 2.000” longer-shaft variants — to suit a wide range of chassis setups. The XD Series (Big Body) platform expands on that foundation, offering a larger-diameter body for applications demanding increased damping capacity, with UMP-style options also available. Both product lines are engineered to work with BSB’s own shocks as well as popular third-party options like Bilstein, making them highly versatile across different team budgets and rule packages.

Precision Engineering, Race-Ready Durability

Every BSB coilover assembly reflects the brand’s focus on reducing friction and maintaining consistent performance over a full racing season. Key engineering details include low-drag internal assemblies and bronze-coated Teflon wearbands that reduce friction and improve sealing — features designed to keep shock valving consistent from the first green flag to the last checkered of the season. Rebuild kits featuring bushings, seals, and snap rings are also available, making long-term maintenance straightforward for race teams that need to keep costs under control.

A Proven Track Record

BSB Manufacturing has been producing parts for major chassis builders and racing distributors for over 20 years. Their shocks have served as official components for sanctioned series including the NeSmith Late Model Sportsman class, a testament to their consistency and rules compliance. Whether you’re building a new car or upgrading an existing suspension package, BSB coilover spring and shock assemblies offer the reliability and adjustability that serious circle track racers demand.

• Outlaw Slider coilover eliminator kits in standard and extended shaft lengths
• XD Series (Big Body) and UMP-style coilover options
• Compatible with BSB, Bilstein, and QA1 shocks
• Low-drag internal assembly with bronze-coated Teflon wearbands
• Rebuild kits available for long-term serviceability
• Engineered and manufactured in Wellington, KS