Powerhobby 2S 7.6V 4200mah 130C HV + Graphene Shorty Lipo Battery Shorty Kraton 6S Parts This is a 12mm hex

This is a 12mm hex wheel

7075-T6 is the high-strength aerospace alloy Kyosho specifies here rather than a softer general-purpose aluminum

Other RC models designed for a compact 4S LiHV battery with an XT60 connector

Woodland Scenics Old Weathered Barn N Built-&-Ready Structure

Powerhobby 2S 7.6V 4200mah 130C HV + Graphene Shorty Lipo Battery Shorty Kraton 6S Parts This is a 12mm hexPowerhobby 2S 7. 6V HV + Graphene 4200mah 130c Shorty Lipo Battery 130C Continous 260C Brust Description The PowerHobby 2S 4200mAh 7. 6V High Voltage Graphene Shorty LiPo batteries are designed for competitive RC racers who need strong power delivery, reduced weight, and a compact battery configuration. Both versions feature a durable hard plastic case and a shorty design that allows the battery to be repositioned inside compatible battery trays,