OS 120 All 4-stroke single cylinder models Bearings

RCBearings OS 120 All 4-stroke single cylinder models Bearings are designed for modelers who demand the highest performance from their engine. Our standard rc bearings are made to our exacting specs using only top quality parts. Clearances and tolerances are tightly controlled for maximum performance. This set is an economical replacement for high cost OEM bearings with no loss in performance. Click here to view a video on changing bearings: https://youtu.be/DojKJZnfyi0