These big-bore springs fit the Kyosho Inferno MP10 family and the new Inferno MP11 — the MP11 runs the same spring lineup, so the chart below covers both cars. For guidance on which springs to use on which cars and with which shock towers, see Kyosho’s factory chart at the bottom of this page.
70mm Springs
| Spring | Part # |
|---|---|
| Orange 7.5 coil, 1.4mm | #IF350-7514 |
| Light blue 7 coil, 1.4mm | #IF350-714 |
| Gray 6.5 coil, 1.4mm | #IF350-6514 |
| Light Purple 8 coil, 1.5mm | #IFS001-815 |
| Red 7.5 coil, 1.5mm | #IFS001-7515 |
| Blue 7 coil, 1.5mm | #IFS001-715 |
72mm Springs
| Spring | Part # |
|---|---|
| Brown 8.5 coil, 1.6mm | #IFS005-8516 |
| Black 8 coil, 1.6mm | #IFS005-816 |
| Navy Blue 9 coil, 1.6mm | #IFS005-916 |
78mm Springs
| Spring | Part # |
|---|---|
| Orange 8.5 coil, 1.4mm | #IFW457-8514 |
| Light blue 8 coil, 1.4mm | #IFW457-814 |
| Gray 7.5 coil, 1.4mm | #IFW457-7514 |
81mm Springs
| Spring | Part # |
|---|---|
| Light Purple 9 coil, 1.5mm | #IFS002-915 |
| Red 8.5 coil, 1.5mm | #IFS002-8515 |
84mm Springs
| Spring | Part # |
|---|---|
| Light Blue 8 coil, 1.4mm | #IS106-814 |
| Gray 7.5 coil, 1.4mm | #IS106-7514 |
| Blue 8 coil, 1.6mm | #IS106-816 |
85mm Springs
| Spring | Part # |
|---|---|
| Light Purple 10 coil, 1.5mm | #IFS003-1015 |
| Red 9.5 coil, 1.5mm | #IFS003-9515 |
| Blue 9 coil, 1.5mm | #IFS003-915 |
86mm Springs
| Spring | Part # |
|---|---|
| Brown 11 coil, 1.6mm | #IFS006-1116 |
| Black 10.5 coil, 1.6mm | #IFS006-10516 |
95mm Springs
| Spring | Part # |
|---|---|
| Orange 11 coil, 1.4mm | #IFS004-1114 |
| Gray 10.5 coil, 1.4mm | #IFS004-10514 |
| Gray 10 coil, 1.4mm | #IFS004-1014 |
Shock Rebuild Parts (MP10 & MP11)
The springs above are only half of a shock rebuild. These are the seals, pistons, shafts, bodies and oil Kyosho lists for the same big-bore shocks, so you can refresh a set while you have them apart. Part numbers come from Kyosho’s official MP11 spare-parts list; the MP10 family shares them.
Seals, o-rings & consumables
| Part | Part # |
|---|---|
| O-ring, 1.9x3.4mm (10) | #IFW140-06 |
| HC diaphragm, big shock (4) | #IF346-09 |
| Shock end set | #IF346-05D |
| Shock cap bushings (4) | #IF346-07B |
| Steel shock bushing (4) | #IF346-04 |
| Shock boots (4) | #IFW154 |
| O-ring set (MP11) | #IFW140-05B |
Shock oil
| Part | Part # |
|---|---|
| Silicone shock oil, 300–850 cSt (80cc) | #SIL series |
Pistons
| Part | Part # |
|---|---|
| Shock piston, 1.5 × 5 hole (2) | #IF347-155B |
| Shock piston, 1.4 × 5 hole (2) | #IF347-145B |
Shafts, bodies & caps
| Part | Part # |
|---|---|
| Shock shaft, 57mm (2) | #IF484-02 |
| Shock shaft, 66mm (2) | #IS215-02 |
| HD coating shock body, L=50 (2) | #IF626-01 |
| HD coating shock body, L=58 (2) | #IS215-01 |
| Threaded big shock cap set (4) | #IF470-02B |
| Shock adjust dial, black (2) | #IF470-03BKB |
| Complete shock set, L=50 (2) | #IF626B |
Kyosho also offers the IF347 big-bore piston in other hole and thickness combinations as tuning options beyond the two listed above.
Did we miss something? Let us know!
Reference: Kyosho MP10 TKI2 Spring Chart (2021)
Kyosho’s own factory chart, which answers a different question than the list above. Rather than what to buy, it shows which spring belongs on which shock — pairing each part number with its shock stay, shock length (47/50/55/58 mm), wire diameter, active coil count, and color, and marking which springs ship as standard on the MP10 and MP10 TKI2.
