Du-Bro's innovative motor mounts are very effective in reducing airframe vibration & greatly reduce fatigue on the entire airframe. They are a totally captive mount that cannot debond & break free. Looking at the exploded view, the spool is solidly bolted to the firewall. The elastomeric rides on the spool & the sleeve which bears the engine & surrounds the elastomeric.The outer rib of the elastomeric absorbs the initial torque loads of the engine while the inner solid portion leaves plenty of compression to effectively absorb the power impulses. Which causes most of the vibration in your aircraft.
DB655 Quiet Mount to suit 25-50 2 stroke motors
DB656 Replacement Dampers to suit DB655 mount (8)
DB657 Quiet Mount to suit 50-75 2 stroke motors
DB658 Replacement Dampers to suit DB657 and DB682 (8)
DB682 Quiet Mount to suit 45-80 4 stroke motors
DB688 Quiet Mount to suit 1.20-1.50 4 stroke motors
DB689 Replacement Dampers to suit DB688 (8)