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Application: Rear Brake Caliper Alignment Fitment: Micro Sprint / Mini-Sprint Splined Axle Systems
The 25686 is designed to sit between the caliper and the carrier (or the carrier and the axle shoulder) to fine-tune the "center-line" of the brake system. In the high-vibration environment of dirt track racing, having a caliper that is even slightly off-center can lead to "brake walking," excessive heat, and a spongy pedal. This spacer allows you to lock in the perfect geometry.
Detailed Technical Specifications
1. Precision Machined Tolerances
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Parallel Surfaces: CNC-machined to ensure that both faces are perfectly flat and parallel. This prevents the caliper from "cocking" at an angle, which is the primary cause of tapered brake pad wear.
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Billet Aluminum Construction: Provides the necessary rigidity to handle braking torque without the weight of steel.
It won't compress or deform, ensuring your alignment stays true through heat cycles.
2. Performance Braking Benefits
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Eliminate Pad Drag: By centering the caliper perfectly over the rotor, you ensure that the pads retract fully and don't "drag" on the disc. In low-horsepower classes like Micro Sprints, eliminating drag is the easiest way to find "free" speed.
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Improved Pedal Feel: A perfectly aligned caliper ensures that the pistons extend equally, providing a firm, immediate brake response the moment the driver touches the pedal.
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Heat Management: Proper alignment ensures even heat distribution across both sides of the rotor, preventing warping and extending the life of your expensive racing rotors.
3. System Integration
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Micro Sprint Standard: Sized to fit the mounting patterns common in JOES and other major-brand Micro Sprint brake systems.
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Stackable Design: These spacers can be used individually or stacked to achieve the exact millimetric offset required for custom chassis setups or different rotor thicknesses.
