Yokomo RP-103BKA RP Ultra Front spring (Black) for YZ-2/2T/4  [RP-103BKA]

RP Ultra front spring for YZ series

This RP-103BKA front spring is a 1mm longer evolution of Yokomo's RP series, built as a hard type spring with a balanced supple yet firm feel. It is purpose-made as an RC-scale accessory to alter front-end stiffness and improve turn-in response during cornering without changing shock bodies or mounts.

Intended fitment covers YZ-2 and YZ-4 buggies and YZ-2T trucks, where the increased free length and harder rate help reduce mid-corner roll and sharpen steering on high-grip dirt for buggies and on artificial turf or carpet for trucks. Install as the front spring on compatible shocks and verify spring preload and shock oil choice when tuning; pairing with slightly heavier shock oil or small preload adjustments can restore balance after increasing front spring rate.

Color: black; use this spring when you need a firmer front response for precise cornering on high-traction surfaces while keeping an RC-scale set-up approach.