Landlord and tenant should negotiate whether they will request waiver of subrogation clauses in their property insurance policies, liability insurance policies, or both (it is less common for the parties to request waiver of subrogation clauses in liability insurance policies, but possible).
Since Nick's answer covered average speed over the entire lifetime of the bike, I'll cover the average over time spent moving. Simply put, this depends almost entirely on the cyclist, rather than the bicycle itself, and there is a wide range. Casual recreational cyclists probably average around 10-15 km/hr (6-9mph). This is your weekend trail rider, out to enjoy the view in the local park.
Technically, the land speed record for a bicycle is held by Bruce Bursford, who pedaled to an astonishing 208 mph in August, 1995. Bursford's record carries a caveat, however: He was sitting on a specially designed, stationary bike with helium-filled tires and a two-foot chain ring, set on rollers.anadian cyclist Sam Whittingham holds the record for fastest speed on a flat, paved surface without using a pace vehicle; he reached 81 mph in Battle Mountain, Nevada in 2001.