Retract set: including tires with aluminium hubs, struts and the SLR electric retract units.
Best in class retracts for e.g. the FW190.
The Electric Retract kits consists of the retract units from SLR, electronic contoller, struts and tires with aluminum hubs.
Main tires included with the FW-190 electric retracts are 4".
Retract angle is 80°.