This front shock spring is supplied as a replacement or spare for R/C car front shock assemblies and is identified as Yokomo model YOKBMS1275 with the SS1275 label. It helps control suspension movement and gives tuners the ability to alter preload and pair springs with different dampers to influence handling.
Install notes: place the spring over the shock shaft and seat it against the retainer and spring cup to suit your shock layout, ensure the piston moves unobstructed and that the spring remains concentric, and confirm preload and travel before use. Standard shock assembly tools and a hex driver are typically sufficient.
Tuning role: fitting the SS1275 adjusts the front spring rate and preload, shifting front grip and balance when combined with damper adjustments, ride height, and sway bar selection. Always install springs in matched sets to preserve even response across the front axle.
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