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
-
On Sale
Wehrs Caliper Bracket Metric Mustang II / Pinto WEHWM303
WEHRS MACHINE
MSRP: $55.99Now: $55.00Was: $55.99If you're running a Mustang II or Pinto with modern braking demands, this Wehrs caliper bracket is the foundation of a reliable stopping system. By adapting GM metric calipers to your classic platform, you gain access to superior brake geometry and...WEHWM303- SKU:
- WEHWM303
- Availability:
- Ships Same Business Day
- Weight:
- 1.86 LBS
- MFG Part #:
- WM303
MSRP: $55.99Now: $55.00Was: $55.99 -
On Sale
Wehrs Caliper Mount Superlite 2pc Aluminum WEHWM300-24
WEHRS MACHINE
MSRP: $65.99Now: $65.00Was: $65.99Precision brake mounting is non-negotiable in high-performance racing, and this Wehrs caliper mount delivers the rigidity and adjustability your rear brake system demands. Built from billet aluminum and engineered for Wilwood Superlite calipers, it...WEHWM300-24- SKU:
- WEHWM300-24
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- WM300-24
MSRP: $65.99Now: $65.00Was: $65.99 -
Wehrs Caliper Spacer Metric 1/4in Alum WEHWM270
WEHRS MACHINE
$13.00Proper brake caliper alignment is critical for consistent stopping performance and even rotor wear. This Wehrs metric spacer corrects caliper offset issues that can develop from wear, modifications, or custom brake setups, ensuring your friction surface...WEHWM270- SKU:
- WEHWM270
- Availability:
- Ships Same Business Day
- Weight:
- 0.18 LBS
- MFG Part #:
- WM270
$13.00 -
Wehrs Wide 5 Dust Cover Starlite WEHWM21S55
WEHRS MACHINE
$13.00Wide 5 hubs demand precision protection—debris and contamination will compromise bearing life and hub integrity if left unchecked. The Wehrs Starlite dust cover is a straightforward bolt-on shield that keeps your wheel assembly clean between sessions and...WEHWM21S55- SKU:
- WEHWM21S55
- Availability:
- Ships Same Business Day
- Weight:
- 0.17 LBS
- MFG Part #:
- WM21S55
$13.00 -
On Sale
Wehrs Caliper Mount Right Clamp-On Metric 2-PC WEHWM200-20HDR
WEHRS MACHINE
MSRP: $90.99Now: $89.00Was: $90.99If you're running a dedicated rear brake setup on a custom or race build, caliper mounting precision directly impacts stopping power and safety. The Wehrs clamp-on design delivers a rigid, repeatable mount that eliminates flex and vibration, critical for...WEHWM200-20HDR- SKU:
- WEHWM200-20HDR
- Availability:
- Ships Same Business Day
- Weight:
- 4.35 LBS
- MFG Part #:
- WM200-20HDR
MSRP: $90.99Now: $89.00Was: $90.99 -
On Sale
Wehrs Caliper Mount Left Clamp-On Metric Fab. WEHWM200-18L
WEHRS MACHINE
MSRP: $65.99Now: $65.00Was: $65.99If you're running a rear brake setup on a fabricated or heavily modified axle, you need a caliper mount that won't compromise stopping power or chassis integrity. The Wehrs clamp-on bracket delivers a secure, repeatable mounting solution for GM metric...WEHWM200-18L- SKU:
- WEHWM200-18L
- Availability:
- Ships Same Business Day
- Weight:
- 3.00 LBS
- MFG Part #:
- WM200-18L
MSRP: $65.99Now: $65.00Was: $65.99 -
Brake Fan - LH Wide 5 LMBFW5L
ULTRA COOL BRAKE FANS
$66.02Brake cooling is critical for sustained high-performance driving, especially in road racing and competition environments where repeated hard braking generates extreme heat. This hub-mounted brake fan pulls ambient air directly across your brake rotors...UCBLMBFW5L- SKU:
- UCBLMBFW5L
- Availability:
- Ships Same Business Day
- Weight:
- 0.45 LBS
- MFG Part #:
- LMBFW5L
$66.02 -
On Sale
U-B Caliper Bracket Clamp On Superlite JFZ XL 12-0422
U-B MACHINE
MSRP: $50.99Now: $49.46Was: $50.99If you're running a rear brake setup with Superlite calipers, proper caliper positioning is non-negotiable for consistent stopping power and pad wear. This clamp-on bracket delivers the rigid, secure mounting your racing application demands, eliminating...UBM12-0422- SKU:
- UBM12-0422
- Availability:
- Ships Same Business Day
- Weight:
- 2.18 LBS
- MFG Part #:
- 12-0422
MSRP: $50.99Now: $49.46Was: $50.99 -
On Sale
U-B Caliper Bracket Superlite 12-0420
U-B MACHINE
MSRP: $23.99Now: $17.45Was: $23.99Proper brake mounting is critical for rear-end stability and consistent caliper alignment, especially under heavy braking loads at speed. The U-B Caliper Bracket Superlite 12-0420 delivers a robust, weld-on solution designed to work seamlessly with...UBM12-0420- SKU:
- UBM12-0420
- Availability:
- Ships Same Business Day
- Weight:
- 0.42 LBS
- MFG Part #:
- 12-0420
MSRP: $23.99Now: $17.45Was: $23.99 -
On Sale
U-B Caliper Bracket Clamp On Dynalite 12-0412
U-B MACHINE
MSRP: $50.99Now: $49.46Was: $50.99If you're running a rear brake setup with Dynalite calipers, proper caliper positioning is non-negotiable for consistent stopping power and pad longevity. This clamp-on bracket solves the fitment challenge for 3-inch axle tubes, giving you a solid,...UBM12-0412- SKU:
- UBM12-0412
- Availability:
- Ships Same Business Day
- Weight:
- 2.43 LBS
- MFG Part #:
- 12-0412
MSRP: $50.99Now: $49.46Was: $50.99 -
On Sale
U-B Caliper Bracket Dynalite 12-0410
U-B MACHINE
MSRP: $23.99Now: $23.27Was: $23.99If you're running a dedicated track setup or road-racing platform, a properly engineered caliper bracket is non-negotiable for consistent braking performance. The U-B Dynalite 12-0410 delivers the precision mounting your rear braking system demands, with...UBM12-0410- SKU:
- UBM12-0410
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 12-0410
MSRP: $23.99Now: $23.27Was: $23.99 -
On Sale
U-B Caliper Bracket GM Clamp 12-0403
U-B MACHINE
MSRP: $56.99Now: $55.28Was: $56.99If you're running a solid rear axle setup with a 3-inch tube and need reliable braking performance, a quality caliper bracket is non-negotiable. The U-B Caliper Bracket GM Clamp 12-0403 delivers a straightforward, bolt-on solution that securely mounts...UBM12-0403- SKU:
- UBM12-0403
- Availability:
- Ships Same Business Day
- Weight:
- 2.55 LBS
- MFG Part #:
- 12-0403
MSRP: $56.99Now: $55.28Was: $56.99 -
On Sale
U-B CALIPER BRACKET GM-3r 12-0401
U-B MACHINE
MSRP: $19.99Now: $19.39Was: $19.99If you're running a rear brake setup with large GM calipers on a 3-inch axle tube, this bracket is your foundation for consistent, reliable stopping power. A properly engineered caliper bracket eliminates deflection and keeps your brakes responsive under...UBM12-0401- SKU:
- UBM12-0401
- Availability:
- Ships Same Business Day
- Weight:
- 0.99 LBS
- MFG Part #:
- 12-0401
MSRP: $19.99Now: $19.39Was: $19.99 -
On Sale
U-B Caliper Bracket Clamp on GM Metric 12-0400-C
U-B MACHINE
MSRP: $56.99Now: $55.28Was: $56.99If you're running a rear brake upgrade on your GM-powered build, you need a caliper bracket that won't compromise under pressure. The U-B Caliper Bracket Clamp delivers a solid, repeatable mounting solution for GM metric calipers on 3-inch axle tubes—no...UBM12-0400-C- SKU:
- UBM12-0400-C
- Availability:
- Ships Same Business Day
- Weight:
- 2.67 LBS
- MFG Part #:
- 12-0400-C
MSRP: $56.99Now: $55.28Was: $56.99 -
Proportioning Valve Scre Type AN Threads 90-2000
TILTON
$123.25A proportioning valve is essential for fine-tuning your brake system's front-to-rear pressure distribution, especially in custom or modified vehicles where factory proportioning ratios no longer apply. This adjustable unit gives you precise control over...TIL90-2000- SKU:
- TIL90-2000
- Availability:
- Ships Same Business Day
- Weight:
- 0.46 LBS
- MFG Part #:
- 90-2000
$123.25 -
Proportioning Valve Lever Type 10mm Threads 90-1003
TILTON
$148.75Proportioning valves are critical for dialing in brake bias across axles, especially in custom or modified brake systems where factory ratios no longer apply. This lever-type proportioning valve gives you precise, real-time adjustment of rear brake...TIL90-1003- SKU:
- TIL90-1003
- Availability:
- Ships Same Business Day
- Weight:
- 0.35 LBS
- MFG Part #:
- 90-1003
$148.75 -
Proportioning Valve Lever Type AN Threads 90-1000
TILTON
$148.75Brake proportioning is critical for balanced braking performance across axles, and this lever-type valve gives you precise, adjustable control over brake pressure distribution. Whether you're tuning a street machine or dialing in a race car, the ability...TIL90-1000- SKU:
- TIL90-1000
- Availability:
- Ships Same Business Day
- Weight:
- 0.48 LBS
- MFG Part #:
- 90-1000
$148.75 -
Master Cylinder 7/8in 78-875
TILTON
$250.75A properly sized master cylinder is critical to brake system response and pedal feel—especially in high-performance applications where consistency matters. This 7/8-inch bore unit delivers predictable hydraulic pressure with minimal fade, giving you the...TIL78-875- SKU:
- TIL78-875
- Availability:
- Ships Same Business Day
- Weight:
- 0.60 LBS
- MFG Part #:
- 78-875
$250.75 -
Master Cylinder 13/16in 78-812
TILTON
$250.75Precision brake modulation is non-negotiable in racing, and this master cylinder delivers the repeatability and control you need lap after lap. The 13/16-inch bore strikes the ideal balance between pedal feel and hydraulic pressure, making it essential...TIL78-812- SKU:
- TIL78-812
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 78-812
$250.75 -
Master Cylinder 3/4in 78-750
TILTON
$250.75A master cylinder is the command center of your braking system—without proper bore sizing and stroke control, you sacrifice both modulation and pedal feel. The 78-750's 3/4-inch bore delivers the right displacement ratio for track-focused applications...TIL78-750- SKU:
- TIL78-750
- Availability:
- Ships Same Business Day
- Weight:
- 0.58 LBS
- MFG Part #:
- 78-750
$250.75
