How to Tune PRO BRAKE ELASTOMERS for a Firmer Brake Feel

Quick answer

To firm up your brake, swap the elastomer stack for a stiffer combination and recheck pedal travel after each change. Start with one elastomer swap, test in small increments, and only add more stiffness once the pedal returns consistently.

Step-by-step elastomer tuning process

1. Record your baseline: Before changing anything, note how far the pedal travels under firm pressure and how it returns. A simple test is to press the brake to a repeatable force and observe the pedal position. Common mistake: skipping the baseline, which makes it impossible to judge whether the new stack is actually firmer. Write down travel and return behavior so you can compare after each swap.
2. Change one elastomer at a time: Replace a single elastomer in the stack with a firmer one rather than swapping the whole stack at once. This isolates the effect of each change and keeps the pedal feel predictable. Checkpoint: after reassembly, press the pedal slowly and confirm it moves smoothly with no binding. One change per test prevents confusing stiffness with assembly errors.
3. Recheck pedal travel and return: With the new elastomer in place, press the brake repeatedly and confirm the pedal returns fully each time. If travel is shorter but the pedal sticks or returns slowly, the stack is too firm or incorrectly seated. Common mistake: assuming a sticky pedal is normal for a firm setup. A firm pedal should still return fully and smoothly; sticking means back off.
4. Test in a short driving session: Run a few laps at moderate pace and focus on whether you can hit the same brake pressure repeatedly. If you are locking up or overshooting braking points, the stack is likely too firm for your leg strength or seating position. Checkpoint: compare your lap-to-lap braking consistency, not just the initial feel. Consistency across laps matters more than how firm the pedal feels in the pits.
5. Adjust stack order before adding more stiffness: If the pedal feels firm but not progressive, try reordering the elastomers so a softer one engages first. Stack order changes the shape of the resistance curve without changing overall hardness. Common mistake: adding more firm elastomers when the real issue is a sudden, non-linear feel. Reorder first, then add stiffness only if the curve still feels wrong.
6. Lock in the setup and recheck mounting: Once you find a stack that gives repeatable braking, tighten all fasteners and confirm the pedal assembly does not flex under hard pressure. A firm elastomer stack puts more load on the mount, so movement here can undo your tuning. Checkpoint: press hard several times and watch for any chassis or stand flex. A firm brake feel is only reliable if the pedal mount stays rigid.

Product facts

• PRO BRAKE ELASTOMERS - Black: Durable elastomer construction for consistent brake feel. Consistent material behavior means your tuning changes are more likely to hold up across long sessions instead of fading.