This steel brake rotor is intended as a replacement part for the HPI Savage 21 chassis, providing a like-for-like disc for maintenance and setup work on models referencing the Savage 21.
Installation overview: remove the wheel and existing rotor, mount the new steel disk in the same orientation as the original, and tighten the hub fasteners to the correct fitment. Perform checks for rotor runout and brake pad seating before running.
Tuning role and durability: steel material offers consistent wear characteristics and a stable braking response useful for setup adjustments. Inspect the rotor regularly and replace if you find deep scoring or uneven wear.
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