ESM Retracts: including tires with aluminium hubs, struts and generation 4 electric retract system.
Best in class retracts for e.g. the T-28.
ER40 (20 kg) Electron Retract System including ESM tires with aluminium hubs, ESM Struts and gear doors.
The best electric retract set available for the ESM T-28 Trojan RC Model Airplane.