Brakes
Circle Track Brakes & Components for IMCA, Late Models at JJ Motorsports
Achieve precise stopping power and superior control on the track with premium circle track brakes from JJ Motorsports. Our selection includes brake kits, rotors, hubs, calipers, master cylinders, and cooling systems designed for late models, modifieds, street stocks, and IMCA dirt racing. Built for reliability, high performance, and durability under intense racing conditions, these components ensure consistent braking and safety.
Shop trusted brands like Wilwood for top-quality hubs and rotors. Explore related categories such as circle track suspension and components for handling upgrades or circle track air and fuel for engine performance.
Top Circle Track Brake Products
- IMCA Mustang II Spindles with Hybrid 10" Rotor Kit 5x5 – Kit includes LH & RH IMCA Mustang II spindles, caliper brackets, hardware, rotor bearings, seals, and 10" hybrid style rotors with studs; ideal for IMCA dirt modifieds with 5x5 bolt pattern.
- Aluminum Wilwood Wide 5 Front Wheel Hub, Low-Drag REM Bearings, Races, Kit – Kit features Wilwood Starlite 55 hub assembly with studs, REM finished inner/outer bearings, low-drag seal, and bearing races; aluminum construction for wide 5 applications.
- 5x5 Grand National Full Floating Rear End Hub Kit – Lightweight Steel with Bearings & Hardware – Lightweight steel hub with black oxide coating, 5x5 bolt pattern, 24-spline drive flange, 2.5-inch ID tapered bearings, seals, and hardware; fits full floater rear axles with 2.5-inch ends.
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
-
Wilwood Bearing Seal Locknut & Cap Kit Hybrid Pinto 370-9545
WILWOOD
$38.06Proper wheel bearing assembly is critical to brake system reliability and safety—a failed locknut or seal can result in catastrophic wheel loss or brake fade. The Wilwood Bearing Seal Locknut & Cap Kit Hybrid Pinto ensures your hub stays secure and your...WIL370-9545- SKU:
- WIL370-9545
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 370-9545
$38.06 -
Wilwood Hub Master Install Kit for GM Metric Rotors with Bearings and Seal 370-9537
WILWOOD
$44.03If you're running GM Metric rotors on a modified or racing platform, proper hub assembly is critical to brake system reliability and safety. The Wilwood Hub Master Install Kit supplies all the essential components—bearings, seal, and locknut—in one...WIL370-9537- SKU:
- WIL370-9537
- Availability:
- Ships Same Business Day
- Weight:
- 0.73 LBS
- MFG Part #:
- 370-9537
$44.03 -
Wilwood Bearing Seal Locknut Kit Wide 5 Hub 370-6885
WILWOOD
$81.42Proper bearing preload and locknut security are critical to Wide 5 hub reliability—especially at track speeds where any play or slippage can compromise safety and performance. This Wilwood kit eliminates guesswork by delivering all necessary components...WIL370-6885- SKU:
- WIL370-6885
- Availability:
- Ships Same Business Day
- Weight:
- 1.43 LBS
- MFG Part #:
- 370-6885
$81.42 -
Wilwood Bearing & Seal Kit Wide 5 Hub 370-0563
WILWOOD
$52.86A Wide 5 hub demands precision-engineered bearings and seals that can withstand the extreme loads and speeds of high-performance racing. The Wilwood 370-0563 kit eliminates the guesswork of sourcing individual components—everything you need comes...WIL370-0563- SKU:
- WIL370-0563
- Availability:
- Ships Same Business Day
- Weight:
- 1.06 LBS
- MFG Part #:
- 370-0563
$52.86 -
Wilwood 60 Degree Master Cylinder Mount with Balance Bar Assembly 340-4630
WILWOOD
$259.31Master cylinder mounting in tight quarters demands precision engineering and zero compromises on braking response. The Wilwood 60 Degree MC Mount delivers exactly that—a compact, lightweight solution that doesn't sacrifice performance or adjustability...WIL340-4630- SKU:
- WIL340-4630
- Availability:
- Ships Same Business Day
- Weight:
- 2.41 LBS
- MFG Part #:
- 340-4630
$259.31 -
Wilwood Balance Bar Assembly 3/8-24 Threaded Adjuster Bar 4.87" Long Steel WIL340-1757
WILWOOD
$77.57Precise brake bias adjustment is critical in racing—too much front bias and you'll lock up the front wheels mid-corner; too little and you lose stopping power when it matters most. The Wilwood Balance Bar Assembly gives you fine-tuned control over...WIL340-1757- SKU:
- WIL340-1757
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MFG Part #:
- 340-1757
$77.57 -
Wilwood High Volume Master Cylinder Cap with Diaphragm Gasket 330-13945
WILWOOD
$21.10If you're running large-piston calipers or pushing your braking system hard on the track, you need a master cylinder that keeps up—and doesn't run dry mid-session. The Wilwood High-Volume Master Cylinder delivers 8.2 ounces of fluid capacity, giving you...WIL330-13945- SKU:
- WIL330-13945
- Availability:
- Ships Same Business Day
- Weight:
- 0.23 LBS
- MFG Part #:
- 330-13945
$21.10 -
Wilwood Master Cylinder Cap with Electronic Fluid Level Sensor for 7-10.7 oz Reservoirs 330-12646
WILWOOD
$28.15Brake fluid monitoring isn't a luxury—it's a critical safety measure that prevents system failures mid-race or mid-drive. This Wilwood Master Cylinder Cap integrates electronic fluid level sensing directly into your remote reservoir, giving you real-time...WIL330-12646- SKU:
- WIL330-12646
- Availability:
- Ships Same Business Day
- Weight:
- 0.10 LBS
- MFG Part #:
- 330-12646
$28.15 -
Wilwood Dynamic Rotor Mount Plate 1pc Wide 5 Hub to 8 x 7.000 in Rotor Bolt Pattern 300-8431
WILWOOD
$88.15If you're running Wide 5 hubs on a race or custom build, you need a reliable way to adapt them to modern rotor standards. The Wilwood Dynamic Rotor Mount Plate bridges that gap with a single-piece design that converts your Wide 5 setup to an 8 x 7...WIL300-8431- SKU:
- WIL300-8431
- Availability:
- Ships Same Business Day
- Weight:
- 0.76 LBS
- MFG Part #:
- 300-8431
$88.15 -
Wilwood Steel Wire Bail Lid Retainer for High Volume Master Cylinders 300-6726
WILWOOD
$6.99A compromised master cylinder cap seal means brake fluid contamination and potential system failure—unacceptable on the track or street. The Wilwood Steel Wire Bail Lid Retainer delivers the secure, leak-proof hold your high-volume master cylinder...WIL300-6726- SKU:
- WIL300-6726
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 300-6726
$6.99 -
Wilwood Adapter Rotor Plate for Starlite 55XD Hub 5 x 4.50 BC to 8 x 7.00 BC 300-11211
WILWOOD
$84.63If you're running a Wilwood Starlite 55XD hub on a different rotor bolt pattern, this adapter plate is essential for proper brake component integration. Constructed from high-strength aluminum and finished with black anodized coating, it delivers the...WIL300-11211- SKU:
- WIL300-11211
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 300-11211
$84.63 -
Wilwood L/W 5 Bolt Hubcap Steel Cadmium 5 x 3.98 in Bolt Pattern 270-9498
WILWOOD
$11.35Keep your Wilwood Starlite 55 hub assembly protected from contamination and corrosion with a purpose-built dust cap engineered for repeated track use. The 0.045-inch steel construction with cadmium plating resists the elements while maintaining a secure...WIL270-9498- SKU:
- WIL270-9498
- Availability:
- Ships Same Business Day
- Weight:
- 0.15 LBS
- MFG Part #:
- 270-9498
$11.35 -
Wilwood Dust Cap 5 Bolt Drive Flange Steel Zinc Oxide 270-6918
WILWOOD
$8.74Protecting your brake system's exposed hub surfaces is essential for preventing corrosion and maintaining the integrity of your 5 Bolt Drive Flange setup. Wilwood's Dust Cap keeps contaminants and moisture away from critical brake components, extending...WIL270-6918- SKU:
- WIL270-6918
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 270-6918
$8.74 -
Wilwood Snap-Cap Front Hub Dust Cap Black Plastic 270-6913
WILWOOD
$23.82Wheel hub dust caps might seem minor, but they're essential protection against contamination that can compromise bearing performance and longevity. This Wilwood Snap-Cap keeps dirt, moisture, and debris out of your hub assembly—critical for maintaining...WIL270-6913- SKU:
- WIL270-6913
- Availability:
- Ships Same Business Day
- Weight:
- 0.20 LBS
- MFG Part #:
- 270-6913
$23.82 -
Wilwood Starlite 55 Front Snap-Cap Hub Wide 5 Aluminum 5/8" Studs 270-6735D
WILWOOD
$211.68If you're running a Starlite 55 and need a reliable front hub that won't compromise on durability or performance, the Wilwood Snap-Cap delivers direct-mount simplicity without sacrificing load capacity. The Wide 5 bolt pattern provides the stability...WIL270-6735D- SKU:
- WIL270-6735D
- Availability:
- Ships Same Business Day
- Weight:
- 8.44 LBS
- MFG Part #:
- 270-6735D
$211.68 -
Wilwood Starlite 55 Front Hub with Snap-Cap and 5/8" C Studs 270-6735C
WILWOOD
$202.85A quality front hub is the foundation of reliable wheel assembly and brake performance. The Wilwood Starlite 55 delivers direct-mount simplicity with aluminum construction that withstands the demands of road racing and track use. This snap-cap design...WIL270-6735C- SKU:
- WIL270-6735C
- Availability:
- Ships Same Business Day
- Weight:
- 8.75 LBS
- MFG Part #:
- 270-6735C
$202.85 -
Wilwood Starlite 55 Front Hub Wide 5 Direct Mount Aluminum Black 270-6735BD
WILWOOD
$229.32If you're running a Wide 5 setup and need a front hub that won't compromise on strength or weight, the Wilwood Starlite 55 is built to deliver. Aircraft-grade aluminum keeps you light while the direct-mount design cuts installation complexity and reduces...WIL270-6735BD- SKU:
- WIL270-6735BD
- Availability:
- Ships Same Business Day
- Weight:
- 8.42 LBS
- MFG Part #:
- 270-6735BD
$229.32 -
Wilwood Starlite 55 Rear Hub 5-Bolt Wide 5 Aluminum Black E-Coat 270-6513D
WILWOOD
$194.03If you're building a dedicated race car or upgrading your existing platform, a quality rear hub is non-negotiable—it's the foundation of your wheel assembly and directly impacts handling precision and reliability under load. The Wilwood Starlite 55...WIL270-6513D- SKU:
- WIL270-6513D
- Availability:
- Ships Same Business Day
- Weight:
- 8.53 LBS
- MFG Part #:
- 270-6513D
$194.03 -
Wilwood Starlite 55 Rear Hub Wide 5 5-Bolt Drive Aluminum Natural 270-6513C
WILWOOD
$185.20If you're running a rear-wheel-drive performance application, your hub needs to handle sustained lateral loads without flex or runout. The Wilwood Starlite 55 delivers the rigidity and lightweight construction that separates reliable track equipment from...WIL270-6513C- SKU:
- WIL270-6513C
- Availability:
- Ships Same Business Day
- Weight:
- 8.79 LBS
- MFG Part #:
- 270-6513C
$185.20 -
Wilwood Starlite 55 Rear Hub 5-Bolt Wide 5 Aluminum Black E-Coat 270-6513BD
WILWOOD
$211.68If you're running a competitive racing program, your rear hub needs to handle extreme loads without adding unnecessary weight to your platform. The Wilwood Starlite 55 delivers aircraft-grade aluminum construction with a wide 5-bolt pattern that provides...WIL270-6513BD- SKU:
- WIL270-6513BD
- Availability:
- Ships Same Business Day
- Weight:
- 8.57 LBS
- MFG Part #:
- 270-6513BD
$211.68
