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 Square O-Ring Kit 1.88/1.75 4-Pack 130-2427
WILWOOD
$13.90Wilwood brake calipers demand precision-engineered sealing components to maintain consistent pressure and prevent fluid loss under race conditions. These OEM-specification square O-rings are the critical maintenance items that keep your braking system...WIL130-2427- SKU:
- WIL130-2427
- Availability:
- Ships Same Business Day
- Weight:
- 0.04 LBS
- MFG Part #:
- 130-2427
$13.90 -
Wilwood 2.00" Round O-Ring Kit 4-Pack 130-0777
WILWOOD
$18.32Brake caliper seals degrade over time, compromising system pressure and stopping power. This Wilwood O-Ring Kit gives you the exact replacements needed to restore your 2.00-inch caliper pistons to factory specifications without a full caliper replacement...WIL130-0777- SKU:
- WIL130-0777
- Availability:
- Ships Same Business Day
- Weight:
- 0.08 LBS
- MFG Part #:
- 130-0777
$18.32 -
Wilwood Dynapro 4-Piston Billet Aluminum Caliper 1.38" Bore 0.81" Rotor 5.25" Mount 120-9703
WILWOOD
$281.88If you're building a high-performance braking system that demands reliability under sustained hard braking, the Wilwood Dynapro 4-Piston Caliper delivers the clamping force and thermal stability you need. The stress-flow forged billet aluminum...WIL120-9703- SKU:
- WIL120-9703
- Availability:
- Ships Same Business Day
- Weight:
- 3.60 LBS
- MFG Part #:
- 120-9703
$281.88 -
Wilwood Dynapro Billet Caliper 4 Piston Side Inlet 1.75" Pistons 0.380" Rotor 5.250" Mount 120-9695-SI
WILWOOD
$246.88The Wilwood Dynapro Billet Caliper delivers the stopping power and reliability you need for high-speed track work and performance driving. With four stainless steel pistons and a rigid billet aluminum construction, this caliper provides consistent,...WIL120-9695-SI- SKU:
- WIL120-9695-SI
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- MFG Part #:
- 120-9695-SI
$246.88 -
Wilwood Dynapro Lug Mount 4-Piston Caliper 1.75" Pistons 0.38" Rotor 5.25" Mount Center 120-9695
WILWOOD
$281.88When you're pushing your braking system to the limit, caliper deflection under load is your enemy—it kills consistency and response when you need it most. The Wilwood Dynapro Lug Mount delivers the rigidity and stopping power demanded by serious racers...WIL120-9695- SKU:
- WIL120-9695
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MFG Part #:
- 120-9695
$281.88 -
Wilwood Dynapro 4-Piston Billet Caliper 1.75" Pistons 0.81" Rotor Lug Mount 120-9693-SI
WILWOOD
$246.88Serious braking performance demands a caliper engineered for consistent, predictable clamping force under extreme conditions. The Wilwood Dynapro 4-Piston delivers the stopping power and thermal stability required for road racing, track days, and...WIL120-9693-SI- SKU:
- WIL120-9693-SI
- Availability:
- Ships Same Business Day
- Weight:
- 3.62 LBS
- MFG Part #:
- 120-9693-SI
$246.88 -
Wilwood Dynapro 4-Piston Billet Aluminum Caliper 1.75" Pistons 0.81" Rotor 5.25" Lug Mount 120-9693
WILWOOD
$281.88When you're pushing your vehicle to the limit on track or tackling aggressive street driving, your braking system needs to deliver consistent, predictable stopping power—and the Wilwood Dynapro 4-Piston Caliper is engineered precisely for that demand...WIL120-9693- SKU:
- WIL120-9693
- Availability:
- Ships Same Business Day
- Weight:
- 3.68 LBS
- MFG Part #:
- 120-9693
$281.88 -
Wilwood Dynapro 4-Piston Billet Aluminum Caliper 1.75" Pistons 1.25" Rotor 5.25" Mount 120-9691
WILWOOD
$281.88If you're serious about stopping power in high-performance applications, the Wilwood Dynapro 4-Piston Billet Caliper delivers the clamping force and reliability you need. With four 1.75-inch stainless steel pistons and forged billet aluminum...WIL120-9691- SKU:
- WIL120-9691
- Availability:
- Ships Same Business Day
- Weight:
- 3.70 LBS
- MFG Part #:
- 120-9691
$281.88Qty in Cart: 0Quantity:Price:$281.88Subtotal: -
Wilwood Dynapro Billet 2-Piston Caliper 1.38" Bore 0.38" Rotor 3.75" Mount 120-9690
WILWOOD
$159.25When you're pushing your vehicle to the limit, brake performance is non-negotiable. The Wilwood Dynapro Billet 2-Piston Caliper delivers the stopping power and reliability demanded by serious racers and high-performance enthusiasts. Built from billet...WIL120-9690- SKU:
- WIL120-9690
- Availability:
- Ships Same Business Day
- Weight:
- 2.30 LBS
- MFG Part #:
- 120-9690
$159.25 -
Wilwood 2.00in Undersize Metric Caliper 120-9333
WILWOOD
$106.75If you're running a GM Metric brake system and need reliable stopping power without compromise, the Wilwood 2.00in Undersize Metric Caliper delivers the precision engineering required for high-performance applications. This single-piston caliper pairs...WIL120-9333- SKU:
- WIL120-9333
- Availability:
- Ships Same Business Day
- Weight:
- 4.44 LBS
- MFG Part #:
- 120-9333
$106.75 -
Wilwood GM Metric Iron Single Piston Floater Caliper 2.75" Piston 11.75" Rotor 5.46" Mount WIL120-8924
WILWOOD
$106.75If you're running a GM Metric brake system in competition, this Wilwood caliper delivers the stopping power and consistency you need when it matters most. The 2.75-inch stainless steel piston provides superior braking force while the cast iron...WIL120-8924- SKU:
- WIL120-8924
- Availability:
- Ships Same Business Day
- Weight:
- 4.89 LBS
- MFG Part #:
- 120-8924
$106.75 -
Wilwood Forged Narrow Mount Dynalite Caliper 3.50in Mount 1.38in Pistons 1.00in Rotor WIL120-15255
WILWOOD
$184.24When track performance demands precision braking, the Wilwood Forged Narrow Mount Dynalite Caliper delivers the clamping force and thermal stability required for consistent stops lap after lap. Its four 1.38-inch stainless steel pistons generate...WIL120-15255- SKU:
- WIL120-15255
- Availability:
- Ships Same Business Day
- Weight:
- 1.00 LBS
- MFG Part #:
- 120-15255
$184.24 -
Wilwood Forged Narrow Dynalite Caliper 3.50in Mount 1.75in Pistons 1.00in Rotor 120-15254
WILWOOD
$184.24When you're serious about stopping power, brake system design matters as much as engine output. The Wilwood Forged Narrow Mount Dynalite delivers the clamping force and thermal stability required for sustained high-performance braking, whether you're...WIL120-15254- SKU:
- WIL120-15254
- Availability:
- Ships Same Business Day
- Weight:
- 3.20 LBS
- MFG Part #:
- 120-15254
$184.24 -
Wilwood GM Metric Race Caliper 2.00in Piston 1.040in Rotor 5.460in Mount 120-14876
WILWOOD
$179.81If you're running a GM-based race car in a spec series or building a dedicated track machine, brake performance is non-negotiable. The Wilwood GM Metric Race Caliper delivers the stopping power and repeatability you need through a straightforward, proven...WIL120-14876- SKU:
- WIL120-14876
- Availability:
- Ships Same Business Day
- Weight:
- 3.55 LBS
- MFG Part #:
- 120-14876
$179.81 -
Wilwood GM Metric Race Caliper 2.50" Piston 1.040" Rotor 5.460" Mount WIL120-13900
WILWOOD
$179.81If you're running in IMCA-sanctioned competition, you need a caliper that meets tech inspections while delivering consistent, repeatable braking performance under race conditions. The Wilwood GM Metric Race Caliper combines proven cast iron construction...WIL120-13900- SKU:
- WIL120-13900
- Availability:
- Ships Same Business Day
- Weight:
- 3.90 LBS
- MFG Part #:
- 120-13900
$179.81 -
Wilwood Billet Narrow Dynalite 4-Piston Radial Mount Caliper 12.72" OD 0.81" Rotor WIL120-13406-SI
WILWOOD
$265.56When you're running competitive racing, brake performance is non-negotiable—and this Wilwood Billet Narrow Dynalite caliper delivers the stopping power and weight savings that separate winners from the rest. Built from CNC-machined billet aluminum and...WIL120-13406-SI- SKU:
- WIL120-13406-SI
- Availability:
- Ships Same Business Day
- Weight:
- 3.40 LBS
- MFG Part #:
- 120-13406-SI
$265.56 -
Wilwood Forged Narrow Dynalite Caliper 3.50in Mount 1.12in Pistons 0.810in Rotor 120-11578
WILWOOD
$188.97When braking performance separates winners from the field, the Wilwood Forged Narrow Dynalite Caliper delivers the clamping force and thermal stability required for sustained competition. Its compact 3.50-inch lug mount and four stainless steel pistons...WIL120-11578- SKU:
- WIL120-11578
- Availability:
- Ships Same Business Day
- Weight:
- 3.95 LBS
- MFG Part #:
- 120-11578
$188.97 -
Wilwood Forged Narrow Dynalite 4-Piston Caliper 3.5" Mount 1.375" Piston 120-11576
WILWOOD
$178.68Serious track time demands serious stopping power. The Wilwood Forged Narrow Dynalite caliper delivers the clamping force and thermal stability you need to nail consistent lap times without fade, whether you're running late models, sprints, or road...WIL120-11576- SKU:
- WIL120-11576
- Availability:
- Ships Same Business Day
- Weight:
- 4.04 LBS
- MFG Part #:
- 120-11576
$178.68Qty in Cart: 0Quantity:Price:$178.68Subtotal: -
Wilwood Forged Narrow Dynalite 4-Piston Aluminum Brake Caliper 3.5in Mount 1.375in Piston 120-11575
WILWOOD
$178.68When you're braking at the edge of a competitive edge, you need a caliper that won't fade under sustained track temperatures or inconsistent pressure. The Wilwood Forged Narrow Dynalite delivers the thermal stability and stopping power required for...WIL120-11575- SKU:
- WIL120-11575
- Availability:
- Ships Same Business Day
- Weight:
- 3.86 LBS
- MFG Part #:
- 120-11575
$178.68 -
Wilwood Forged Narrow Mount Dynalite Caliper 3.5" Mount 1.75" Pistons 1.25" Rotor 120-11573
WILWOOD
$178.68When you're pushing your vehicle to the limit on the track, brake performance can't be compromised. The Wilwood Forged Narrow Mount Dynalite Caliper delivers the stopping power and reliability that competitive racers demand, with a lightweight design...WIL120-11573- SKU:
- WIL120-11573
- Availability:
- Ships Same Business Day
- Weight:
- 3.80 LBS
- MFG Part #:
- 120-11573
$178.68
