The Wisconsin statute is typical of most states bicycle laws. It essentially codifies common sense applicable to all vehicles on the road. If you are going slow, stay to the right and let others pass. If its not safe to stay to the right, then take the whole lane.
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Il faut de l'audace, encore de l'audace, toujours de l'audace
1980 3Rensho-- 1975 Raleigh Sprite 3spd
1990s Raleigh M20 MTB--2007 Windsor Hour (track)
1988 Ducati 750 F1