Recent widower and hope for some exercise to help the old bones work a little. I have been looking at a booster engine and lean to electric rather than a rice burner engine. I live in a retirement village and the petrel two stroke may be disturbing to some neighbors. I am a rather large man 1.9m and 124kg and have a mountain bike but have never been on it yet. I thought I would get use to the bike B4 I invest in any other equipment. I am just starting to research various power sources and was wondering if any one might have a practical suggestion from experience as to brand or manufactour I might look into. Any help would be appreciated