Estimated 'easily reachable' speed of bicycle with proper wheels sizes: 26'' - 15/9 km/mi 28'' - 20/12 km/mi 30'' - 25/15 km/mi 32'' - 30/19 km/mi 34'' - 35/22 km/mi 36'' - 40/25 km/mi 38'' - 45/28 km/mi 40'' - 50/31 km/mi as you see it isn't hard to build bike with a big 'easily reachable' speed - it is necessary only to think a little (riding with speed 15/9 or 20/12 km/mi it is suicide, speed must be higher). Also bicycle frame should be only low, because it is much easier to use such bicycle - in case of bikes with 30'' wheels and more frame can be only low in other case using of bike is impossible. Gregory Podgorniak, Poland (year 2006) email contact: podgorniakgre@gmail.com map of my research |
|