The RED bushings have a shore durometer rating of 50. This is the 2nd softest set of bushings you can get for your Acrobrat and is usually (but not always) best in colder climates.
Use these (and the other sets) to tune out vibrations out of your motor & prop setup.
Also available in ratings of 40, 50, 60, and 70
- 4x Bushings
- 4x FC grommets