Product details page tabs
13x25x6mm Rear Avid RC Ball Bearing.
Engines Used In:
- Novarossi: N21BF
- RB: S3, S5, S7, WS7
Tips
- Diagnosing: If you hold the head of the engine with your hand and a rattle sound dissapears then you have a worn out rear bearing. The risks/issues of a bad rear bearing are not holding a tune, crank can get worn, and worst of all the bearing comes apart and eats your piston/sleeve.
- Installation: The best way to install is to use a bearing puller/installer, OFNA makes a very affordable one. If you place the new bearing in the freezer for 15 minutes it will be easier to install.
- Positioning: For proper lubrication, face the open side where you can see the balls to the rear of the motor (not the clutch side).