With the AR620

Built for the Losi 22-4

so the bridge works as a complete two-track section right away

Direct-fit replacement for stock 17mm splined hubs

Heli's and Aircraft up to 72” or up to 12lbs when using just one servo per control surface

Kyosho ISW057 Hard Rear Shock Stay (Inferno ST-RR Evo) Inferno VE Parts With the AR620Kyosho ISW057 Hard Rear Shock Stay (Inferno ST RR Evo) The ISW057 is a genuine Kyosho hard rear shock stay designed for the Inferno ST RR Evo. Built from stiffer material than the stock stay, it reduces flex under hard landings and aggressive driving, helping keep rear shock geometry consistent. This genuine Kyosho part is a solid upgrade or replacement for a bent or worn stay. Genuine Kyosho part ISW057 Hard rear shock stay Fits Inferno ST RR Evo