Non-vibration isolated posts and smaller housing - will fit any 3/8 in. hole. Post includes two jam nuts for attachment.
Most Trail Tech lights can be installed easily on Trail Tech handlebar mounted light kits and dashboards with included pivot mount. Trail Tech lights feature double vibration isolated housing: rubber dampers within the housing and around the posts reduce vibration caused by the motor. It is important for the light quality and the lamp's lifespan.