Product details
SMOOTH RINGS for APC SF and SPEED 5 pcs
These are precision machined from hard aluminum to insure a wobble-free, perfect fit of APC SlowFly and SPEED Props to 5mm collet prop adapters. This 5mm size matches Hyperion collect adapter HP-ADAP-30-S (short for no spinner) and HP-ADAP-30-L (long to allow spinner) for 3mm motor and gearbox shafts. For 3.2mm shafts, use HP-ADAP-32-S or -L adapter.