This 1/12-scale part is a front lower A-arm spring supplied by Yokomo under model R12-10LHS and rated hyper soft for use with R12/GT series setups. It is designed for chassis tuning on RC cars, not for road vehicles.
As a front suspension element for R12/GT series cars, the spring offers a reduced spring rate to boost front compliance, aiding control of front grip and body roll during tighter cornering and over small track imperfections.
Installation notes: the spring installs onto the lower A-arm spring seat of the front suspension on supported R12/GT chassis. Carry out the chassis manufacturer's recommended front suspension disassembly when replacing springs, and verify correct seating and free travel after fitting.
Tuning guidance: choose the hyper soft lower A-arm spring to soften front reaction to small bumps or to reduce initial turn-in aggressiveness; adjust damper oil and anti-roll bar settings in concert to reach the target handling feel.
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