APM Performance Tuned Losi 22S Sprint Motor Spektrum SPMXSM4800 Firma 3300Kv BL MODIFIED, SHIMMED

APM Performance Tuned Losi 22S Sprint 3300KV Firma Motor

Matched rotor & Stator

Rotor shimmed

Factory bearings still used after being cleaned and tuned

Motolyser test have shown these getting 150 more kv (3450kv) ratings