Suspension and Components
Circle Track Suspension Parts: Control Arms, Shocks & Springs for IMCA & Late Models at JJ Motorsports
Optimize handling and stability on the track with premium circle track suspension components from JJ Motorsports. Our selection includes control arms, shocks, springs, weight jacks, and more, designed for superior cornering, durability, and performance in late models, modifieds, street stocks, and IMCA dirt racing. Compatible with GM Metric frames and other setups, these high-quality parts ensure reliable operation and enhanced traction under intense racing conditions.
Shop trusted brands like Allstar Performance. Explore related categories such as circle track steering and components for precision control or circle track brakes for stopping power.
Top Circle Track Suspension Products
- Lower Control Arm Kit for 1978-88 GM Metric Street Stock & Hobby Stock, Includes Ball Joints & Greasable Bushings – This kit includes stamped steel lower control arms with black powdercoat finish, greasable bushings, and weld-in greasable ball joints for enhanced suspension performance. It is compatible with 1978-88 GM Metric G-Body vehicles and designed for street stock and hobby stock racing applications.
- Allstar Performance Metric Upper Control Arm Left 9in ALL57984 – This tubular upper control arm is designed for the driver side on GM Metric Frames, measuring 9.00 inches long with a bolt-in ball joint and steel construction finished in black powder coat. It features greasable pivot points and is ideal for hobby stock race cars, providing a perfect fit and function.
- Spring Cup Weight Jack Bolt Combo ONE PAIR IMCA Modified Dirt USRA B-Mod Cups – This kit includes two 8" long steel jack bolts with 1-8 course threads and two steel spring cups with a 5-inch outer diameter. It is designed for IMCA Modified, Dirt, and USRA B-Mod cups.
Browse our in-stock inventory below with same-day shipping and expert support. Free shipping on orders over $99! Questions? Contact us for fitment advice!
- Product
- Qty in Cart
- Quantity
- Price
- Subtotal
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Hyperco Bump Stop Spring 8000lbs 20BS8000
HYPERCO
$133.00Bump stops are critical for preventing suspension bottoming during extreme compression events—whether you're running a high-downforce setup, launching hard off the line, or navigating rough track surfaces. This Hyperco unit provides a firm 8000 lb/in...HYP20BS8000- SKU:
- HYP20BS8000
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 20BS8000
$133.00 -
Hyperco Bump Stop Spring 7000lbs 20BS7000
HYPERCO
$133.00Bump stops are essential suspension components that prevent metal-to-metal contact when your suspension reaches full compression, protecting critical components from damage during hard cornering, braking, and track use. The Hyperco 7000lb bump stop...HYP20BS7000- SKU:
- HYP20BS7000
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 20BS7000
$133.00 -
Hyperco Bump Stop Spring 6000lbs 20BS6000
HYPERCO
$133.00Bump stops are critical for controlling suspension geometry during extreme compression events—whether you're running a road course setup or dealing with rough track conditions. The Hyperco 20BS6000 delivers a stiff 6000 lb/in spring rate in a compact...HYP20BS6000- SKU:
- HYP20BS6000
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 20BS6000
$133.00 -
Hyperco Bump Stop Spring 5000lbs 20BS5000
HYPERCO
$133.00Bump stops are critical for controlling suspension travel and protecting your chassis from bottoming out under extreme compression. The Hyperco 5000lbs bump stop spring provides progressive resistance at the end of suspension stroke, preventing damage to...HYP20BS5000- SKU:
- HYP20BS5000
- Availability:
- Ships Same Business Day
- Weight:
- 0.67 LBS
- MFG Part #:
- 20BS5000
$133.00 -
Hyperco Bump Stop Spring 4000lbs 20BS4000
HYPERCO
$133.00Bump stops are critical for controlling suspension travel and preventing hard bottoming that can damage chassis and components. The Hyperco 20BS4000 provides the progressive resistance needed to manage weight transfer during aggressive cornering,...HYP20BS4000- SKU:
- HYP20BS4000
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 20BS4000
$133.00 -
Hyperco Bump Stop Spring 3500lbs 20BS3500
HYPERCO
$133.00Bump stops are critical for controlling suspension travel and preventing bottoming-out during aggressive cornering, hard braking, or rough track conditions. The Hyperco 20BS3500 delivers a firm 3500 lb/in spring rate that complements performance...HYP20BS3500- SKU:
- HYP20BS3500
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 20BS3500
$133.00 -
Hyperco Bump Stop Spring 3000lbs 20BS3000
HYPERCO
$133.00Bump stops are critical for controlling suspension bottoming and protecting your chassis during aggressive cornering, braking, and track work. The Hyperco 20BS3000 delivers a stiff 3000 lb/in spring rate in a compact package, making it ideal for race...HYP20BS3000- SKU:
- HYP20BS3000
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 20BS3000
$133.00 -
Hyperco Bump Stop Spring 2500lbs 20BS2500
HYPERCO
$133.00Bump stops are critical for controlling suspension geometry under extreme compression, preventing metal-to-metal contact that can damage your suspension components and compromise vehicle control. The Hyperco 2500lbs bump stop spring delivers consistent,...HYP20BS2500- SKU:
- HYP20BS2500
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 20BS2500
$133.00 -
Hyperco Bump Stop Spring 2250lbs 20BS2250
HYPERCO
$133.00Bump stops are critical for controlling suspension travel and preventing catastrophic bottoming-out that can damage chassis components and compromise handling. The Hyperco 2250lbs bump stop spring provides a high spring rate in a compact 2.000" envelope,...HYP20BS2250- SKU:
- HYP20BS2250
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 20BS2250
$133.00 -
Hyperco Bump Stop Spring 2000lbs 20BS2000
HYPERCO
$133.00Bump stops are critical for controlling suspension geometry under extreme compression, preventing chassis damage and maintaining consistent handling during hard cornering or track work. The Hyperco 2000lbs bump stop spring provides the firm support...HYP20BS2000- SKU:
- HYP20BS2000
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 20BS2000
$133.00 -
Hyperco Bump Stop Spring 1800lbs 20BS1800
HYPERCO
$133.00Bump stops are critical for controlling suspension travel and preventing bottoming-out during aggressive driving, especially in road racing and autocross applications. The Hyperco 1800lbs bump stop spring provides a progressive resistance curve that...HYP20BS1800- SKU:
- HYP20BS1800
- Availability:
- Ships Same Business Day
- Weight:
- 0.50 LBS
- MFG Part #:
- 20BS1800
$133.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z1320
HYPERCO
$93.00A front spring's rate directly impacts your vehicle's ride height, handling response, and load support—critical factors whether you're building a track-focused setup or optimizing daily performance. The Hyperco 18Z1320 delivers a stiff 1320 lb/in rate in...HYP18Z1320- SKU:
- HYP18Z1320
- Availability:
- Ships Same Business Day
- Weight:
- 8.97 LBS
- MFG Part #:
- 18Z1320
$93.00Qty in Cart: 0Quantity:Price:$93.00Subtotal: -
Hyperco Front Spring 5.5in ID 12in Tall 18Z1300-12
HYPERCO
$93.00If you're building a dedicated track car or upgrading your performance suspension, spring rate is everything—and 1300 lb/in gives you the stiffness needed for responsive cornering and minimal body roll without sacrificing drivability. Hyperco's...HYP18Z1300-12- SKU:
- HYP18Z1300-12
- Availability:
- Ships Same Business Day
- Weight:
- 11.98 LBS
- MFG Part #:
- 18Z1300-12
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z1300-11
HYPERCO
$93.00A properly tuned front spring is fundamental to your vehicle's suspension geometry, load transfer, and cornering performance. The Hyperco 18Z1300-11 delivers a stiff 1300 lb/in spring rate in a compact 11-inch package, making it ideal for dedicated track...HYP18Z1300-11- SKU:
- HYP18Z1300-11
- Availability:
- Ships Same Business Day
- Weight:
- 11.10 LBS
- MFG Part #:
- 18Z1300-11
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z1200-11
HYPERCO
$93.00A stiffer front spring is essential when you're running a performance setup or pushing your vehicle to its limits—and the Hyperco 1200 lb/in rate delivers the consistency and predictability that separates competitive lap times from mediocre ones. This...HYP18Z1200-11- SKU:
- HYP18Z1200-11
- Availability:
- Ships Same Business Day
- Weight:
- 11.15 LBS
- MFG Part #:
- 18Z1200-11
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z1200
HYPERCO
$93.00If you're fine-tuning your suspension geometry or building a track-ready platform, spring rate selection is critical to your car's handling balance. The Hyperco 18Z1200 delivers a stiff 1200 lb/in rate in a compact 5.5-inch ID package, making it ideal...HYP18Z1200- SKU:
- HYP18Z1200
- Availability:
- Ships Same Business Day
- Weight:
- 8.52 LBS
- MFG Part #:
- 18Z1200
$93.00 -
Hyperco Front Spring 5.5in ID 12in Tall 18Z1100-12
HYPERCO
$93.00If you're building a front-end suspension that demands precision geometry and consistent load support, a properly matched coil spring is non-negotiable. The Hyperco 18Z1100-12 delivers a stiff 1100 lb/in rate in a compact 12-inch package—ideal for drag...HYP18Z1100-12- SKU:
- HYP18Z1100-12
- Availability:
- Ships Same Business Day
- Weight:
- 12.50 LBS
- MFG Part #:
- 18Z1100-12
$93.00 -
Hyperco Front Spring 5.5in ID 11in Tall 18Z1100-11
HYPERCO
$93.00If you're tuning a front-end suspension for precision handling and consistent weight transfer, you need a spring that delivers predictable performance lap after lap. The Hyperco 1100 lb/in front spring is engineered for applications demanding a stiffer...HYP18Z1100-11- SKU:
- HYP18Z1100-11
- Availability:
- Ships Same Business Day
- Weight:
- 10.06 LBS
- MFG Part #:
- 18Z1100-11
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z1100
HYPERCO
$93.00If you're building a high-performance front end that demands precise weight transfer and consistent spring rates, the Hyperco 18Z1100 delivers the stiffness you need without compromise. At 1100 lb/in, this coil spring provides the firm support required...HYP18Z1100- SKU:
- HYP18Z1100
- Availability:
- Ships Same Business Day
- Weight:
- 8.48 LBS
- MFG Part #:
- 18Z1100
$93.00 -
Hyperco Front Spring 5.5in ID 9.5in Tall 18Z1050
HYPERCO
$93.00If you're building a high-performance front end that demands precision geometry and consistent load handling, a quality coil spring is non-negotiable. The Hyperco Front Spring delivers a stiff 1050 lb/in rate in a compact 5.5-inch diameter package,...HYP18Z1050- SKU:
- HYP18Z1050
- Availability:
- Ships Same Business Day
- Weight:
- 8.36 LBS
- MFG Part #:
- 18Z1050
$93.00
