Biking on Jost Van Dyke [1] is not for the faint of heart. While the distances are short, the climbs can be brutal on the way up and terrifying on the way down. If you are sufficiently experienced, you can rent a bike from BVI Sea and Land Adventures (284/499-2269 or 284/495-4966, U.S. 340/775-7292, www.bviadventure.com [2], 9 a.m.–5 p.m. daily) at White Bay [3] for about $25 a day.
Links:
[1] http://www.moon.com/destinations/virgin-islands/jost-van-dyke
[2] http://www.bviadventure.com
[3] http://www.moon.com/destinations/virgin-islands/jost-van-dyke/sights/south-shore/white-bay