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
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Wilwood 7/8in Compact Side Mount Master Cylinder Kit 260-12387
WILWOOD
$106.64Space constraints shouldn't compromise braking performance. The Wilwood 7/8in Compact Side Mount Master Cylinder delivers full-size stopping power in a footprint engineered for tight engine bays, custom chassis builds, and unconventional brake layouts...WIL260-12387- SKU:
- WIL260-12387
- Availability:
- Ships Same Business Day
- Weight:
- 2.20 LBS
- MFG Part #:
- 260-12387
$106.64Qty in Cart: 0Quantity:Price:$106.64Subtotal: -
Wilwood Compact Remote Side Mount Master Cylinder 3/4" Bore Black E-Coat 260-12385
WILWOOD
$106.64When brake system real estate is at a premium, you need a master cylinder that delivers full stopping power without the footprint. The Wilwood Compact Remote Side Mount gives you a full-size master cylinder's performance in a chassis where space is...WIL260-12385- SKU:
- WIL260-12385
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 260-12385
$106.64 -
Wilwood adjustable proportioning valve 3/8-24 IF inlet and outlet 100-1000 psi WIL260-10922
WILWOOD
$53.29Brake balance is non-negotiable in high-performance driving—whether you're on the track or pushing your setup to the limit. This Wilwood adjustable proportioning valve gives you precise control over brake pressure distribution, allowing you to dial in...WIL260-10922- SKU:
- WIL260-10922
- Availability:
- Ships Same Business Day
- Weight:
- 0.40 LBS
- MFG Part #:
- 260-10922
$53.29 -
Wilwood 1in Short Remote Master Cylinder Rebuild Kit 260-10517
WILWOOD
$29.92Master cylinder seals degrade over time, compromising brake response and safety—this Wilwood rebuild kit restores your remote master cylinder to factory specifications without replacement costs. Whether you're maintaining a race-proven braking system or...WIL260-10517- SKU:
- WIL260-10517
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 260-10517
$29.92 -
Wilwood 7/8in Remote Reservoir Master Cylinder Rebuild Kit 260-10516
WILWOOD
$29.92Master cylinder seals degrade over time, compromising brake pressure and responsiveness—exactly what you can't afford in a race or high-performance application. This Wilwood rebuild kit restores your 7/8-inch remote reservoir master cylinder to factory...WIL260-10516- SKU:
- WIL260-10516
- Availability:
- Ships Same Business Day
- Weight:
- 0.30 LBS
- MFG Part #:
- 260-10516
$29.92 -
Wilwood 3/4in Short Remote Master Cylinder Rebuild Kit 260-10514
WILWOOD
$29.92Master cylinder seals degrade over time, leading to soft brake pedal feel and reduced hydraulic pressure—a critical safety issue in racing and high-performance applications. This Wilwood rebuild kit restores your 3/4-inch bore remote master cylinder to...WIL260-10514- SKU:
- WIL260-10514
- Availability:
- Ships Same Business Day
- Weight:
- 0.27 LBS
- MFG Part #:
- 260-10514
$29.92 -
Wilwood 5/8in Short Remote Master Cylinder Rebuild Kit 260-10513
WILWOOD
$29.92Master cylinder seals degrade over time, leading to spongy brake feel and potential system failure—exactly what you can't afford in a race car or high-performance build. This Wilwood rebuild kit gives you everything needed to restore your 5/8-inch remote...WIL260-10513- SKU:
- WIL260-10513
- Availability:
- Ships Same Business Day
- Weight:
- 0.25 LBS
- MFG Part #:
- 260-10513
$29.92 -
Wilwood 4 oz Remote Mount Reservoir Kit with 30" Hose WIL260-10500
WILWOOD
$39.57If you're running a remote-mount brake system or custom brake setup, you need a dedicated reservoir that won't compromise fluid quality or system reliability. The Wilwood 4 oz Remote Mount Reservoir Kit gives you a complete, bolt-together solution with...WIL260-10500- SKU:
- WIL260-10500
- Availability:
- Ships Same Business Day
- Weight:
- 0.65 LBS
- MFG Part #:
- 260-10500
$39.57Qty in Cart: 0Quantity:Price:$39.57Subtotal: -
Wilwood compact master cylinder 1-1/8 inch bore 1.12 inch stroke black e-coat 260-10376
WILWOOD
$114.61Space-constrained builds don't have to sacrifice braking performance. This Wilwood compact master cylinder delivers full-size stopping power in a package measuring just 3.375 inches long—ideal for custom fabrication, tight engine bays, and purpose-built...WIL260-10376- SKU:
- WIL260-10376
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 260-10376
$114.61 -
Wilwood Compact Master Cylinder 1in Bore 1.12in Stroke Black E-Coated Aluminum WIL260-10375
WILWOOD
$106.64Space-constrained brake builds demand precision without compromise. The Wilwood Compact Master Cylinder delivers full braking authority in a downsized package, making it the go-to choice for custom fabrications, race cars, and tight engine bays where a...WIL260-10375- SKU:
- WIL260-10375
- Availability:
- Ships Same Business Day
- Weight:
- 2.05 LBS
- MFG Part #:
- 260-10375
$106.64 -
Wilwood Compact Master Cylinder Kit 7/8in Bore 1.120in Stroke Aluminum Black Finish 260-10374
WILWOOD
$106.64If you're building a high-performance braking system in a confined engine bay, you need a master cylinder that delivers full hydraulic pressure without sacrificing installation flexibility. The Wilwood Compact Master Cylinder Kit gives you the stopping...WIL260-10374- SKU:
- WIL260-10374
- Availability:
- Ships Same Business Day
- Weight:
- 2.49 LBS
- MFG Part #:
- 260-10374
$106.64 -
Wilwood Compact Combination Master Cylinder Kit 13/16" Bore with Remote Reservoir 260-10373
WILWOOD
$114.61Space-constrained builds demand braking solutions that don't sacrifice stopping power—the Wilwood Compact Combination Master Cylinder delivers full-size performance in a footprint engineered for tight engine bays and custom chassis. With a 13/16-inch...WIL260-10373- SKU:
- WIL260-10373
- Availability:
- Ships Same Business Day
- Weight:
- 1.94 LBS
- MFG Part #:
- 260-10373
$114.61 -
Wilwood Compact Master Cylinder Kit 3/4in Bore Black E-Coated Aluminum 260-10372
WILWOOD
$106.64When space is at a premium in your race car or custom build, compromising on braking performance isn't an option. The Wilwood Compact Master Cylinder Kit delivers full-size stopping power in a footprint engineered for tight engine bays and custom chassis...WIL260-10372- SKU:
- WIL260-10372
- Availability:
- Ships Same Business Day
- Weight:
- 2.36 LBS
- MFG Part #:
- 260-10372
$106.64 -
Wilwood Compact Remote Master Cylinder Inlet Adapter Black Plastic 260-10264
WILWOOD
$5.21If you're running a Wilwood Compact Remote Master Cylinder brake system, a worn or damaged inlet adapter compromises the integrity of your entire brake circuit. This replacement adapter restores the secure connection between your master cylinder and...WIL260-10264- SKU:
- WIL260-10264
- Availability:
- Ships Same Business Day
- Weight:
- 0.02 LBS
- MFG Part #:
- 260-10264
$5.21 -
Wilwood Caliper Mounting Kit with Bracket for SL6R and SL4R Calipers 3.50" Mount 250-6309
WILWOOD
$90.07If you're running SL6R Superlite calipers on a 3.50-inch lug pattern, this mounting bracket is your foundation for consistent, reliable braking under race conditions. Wilwood engineered this kit to eliminate guesswork—everything you need comes in the...WIL250-6309- SKU:
- WIL250-6309
- Availability:
- Ships Same Business Day
- Weight:
- 0.62 LBS
- MFG Part #:
- 250-6309
$90.07 -
Wilwood Tandem Master Cylinder to Single Pedal Adapter Kit WIL250-3677
WILWOOD
$58.15If you're running a single pedal brake assembly but need the hydraulic capacity and modulation of a tandem master cylinder, this adapter kit bridges that gap without fabrication headaches. Wilwood's precision bracket eliminates guesswork on mounting...WIL250-3677- SKU:
- WIL250-3677
- Availability:
- Ships Same Business Day
- Weight:
- 0.55 LBS
- MFG Part #:
- 250-3677
$58.15 -
Wilwood Caliper Mounting Kit GN6R 3.50in Radial Mount Aluminum Black Anodized 250-14046
WILWOOD
$90.07If you're upgrading from Superlite series calipers to the superior stopping power of GN6R radial mount calipers, this mounting kit eliminates the need for custom fabrication. It preserves your original rotor diameter while delivering precise pad-to-rotor...WIL250-14046- SKU:
- WIL250-14046
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 250-14046
$90.07 -
Wilwood caliper shim 10-pack 0.015-inch thick 7/16-inch hole 240-4387
WILWOOD
$15.79Caliper shim spacing directly affects brake pad contact pressure and rotor engagement. Even minor misalignment causes uneven pad wear, reduced stopping power, and vibration that compromises both safety and lap times. This 10-pack gives you the...WIL240-4387- SKU:
- WIL240-4387
- Availability:
- Ships Same Business Day
- Weight:
- 0.12 LBS
- MFG Part #:
- 240-4387
$15.79Qty in Cart: 0Quantity:Price:$15.79Subtotal: -
Wilwood brake caliper shim 10-pack 0.063-inch thick 7/16-inch hole 240-4386
WILWOOD
$10.04Caliper misalignment causes uneven pad wear, reduced braking response, and premature component failure—problems that compound under racing or high-performance conditions. These Wilwood caliper shims solve that issue by providing precision spacing that...WIL240-4386- SKU:
- WIL240-4386
- Availability:
- Ships Same Business Day
- Weight:
- 0.11 LBS
- MFG Part #:
- 240-4386
$10.04 -
Wilwood caliper shim 10-pack 0.032-inch thick 7/16-inch hole 240-4385
WILWOOD
$14.04Brake caliper shims are essential for achieving precise pad alignment and consistent clamping force across your braking system. Misaligned calipers can cause uneven pad wear, reduced stopping power, and premature rotor damage—issues that compromise both...WIL240-4385- SKU:
- WIL240-4385
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 240-4385
$14.04
