This is a set of optional Kyosho 84mm Big Bore Shock Springs, and are intended for use on the rear of the Kyosho MP9 1/8 scale buggy when equipped with the Medium Length Rear Shock Tower and Shocks. These springs can also be used on the ST-RR 1/8 truck as front shock springs. These springs are made with a smaller 1.4 diameter wire, compared to the original springs that used 1.6 wire. These springs also have a lower turn count than the older big bore shock springs, which allows the spring to be lighter than the previous shock springs.

Medium Length 84mm Shock Spring Specifications:

• Softer
• IS106-9514: Yellow – 9.5 turns/1.4 wire (2.95lb-in / 527.50 n/m)
• IS106-914: Green –  9 turns/1.4 wire (3.16lb-in / 565.18 n/m)
• IS106-8514: Orange  – 8.5 turns/1.4 wire (3.40lb-in / 608.65 n/m)
• IS106-814: Light Blue – 8 turns/1.4 wire (3.68lb-in / 659.38 n/m)
• IS106-1116: White – 11 turns/1.6 wire (4.11lb-in / 729.08 n/m)
• IS106-1016: Purple – 10 turns/1.6 wire (4.62lb-in / 820.22 n/m)
• IS106-916: Light Green – 9 turns/1.6 wire (5.28lb-in / 937.39 n/m)
• IS106-816: Blue – 8 turns/1.6 wire (6.16lb-in / 1093.62 n/m)
• Harder

Effects of Shock Spring Changes

Shock Spring	Characteristic
Softer	Increased Chassis Roll Increased Traction Better in Bumpy Conditions More Likely to Bottom Out
Stiffer	Decreased Chassis Roll Decreased Traction Increased Responsiveness

Part Compatibility:
Kyosho Inferno MP777	Kyosho Inferno MP9 TKI2	Kyosho Inferno MP9e
Kyosho Inferno ST-RR EVO	Kyosho Inferno MP9 TKI3	Kyosho Inferno ST-R
Kyosho Inferno ST-RR	Kyosho Inferno MP9

Spec

• Brand: Kyosho
• Part No: K.IS106-814
• Barcode: 4548565144174
• Fitment: Option Part
• Fitment: Standard Part