Beefier
RPM A-arms are significantly beefier than the original 6S version A-arms. Lower A-arm support beams are 30% thicker while upper A-arms are more than 22% thicker. The added thickness not only improves durability and strength, it also reduces flex. Less flex equates to more predictable suspension performance and handling.
The lower A-arm has an added shock mount hole further outboard. This additional position provides a lower profile suspension set-up. The shocks lay down a little further, dropping the ride height for a lower center of gravity. A lower center of gravity equates to higher corner speeds.
As for the upper A-arm, RPM eliminated the caster spacers. This allowed room to widen the arm at the inner hinge pin mount. The extra width creates more of an “A” shape, stabilizing the upper A-arm. A more stable A-arm improves steering and suspension performance while adding strength and durability.
- Stock replacement a-arms for V5 / EXB models (see NOTE below)
- Extra shock mount hole for added suspension versatility
- Fits most 6S version models (see NOTE below)
- Sold as one upper and one lower in each package
- V5 & EXB models: Stock replacement A-arms for ARRMA ARA330655 and ARRMA ARA330656.
- V4 and earlier models: Requires 1 ARRMA ARA713032 Shock Mount Pin & 1 ARRMA ARA330645 End Cap. Replaces stock ARRMA ARA330218 & ARA330219.
- RPM ARRMA Kraton, Talion, Notorious, Fireteam & Outcast A-arms are sold as one upper and one lower in each package. One left and one right package is needed for each vehicle. RPM A-arms replace the upper arms from ARRMA ARA330655 and the lower arms from ARRMA ARA330656.
6S / 81572 / Arrma / front / Kraton / left / lower / OUTCAST / rpm / Suspension arm / upper








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