SDCL § 32-20-20: Faulty equipment or unsafe conditions--Liability.

Any off-road vehicle activity sponsor or off-road vehicle professional who engages in the business of renting off-road vehicles to another shall maintain the rental off-road vehicles in a safe condition.

An off-road vehicle activity sponsor or off-road vehicle professional who offers off-road vehicles for rent is liable for the death or injury to a participant or other person or property only for an act or omission that constitutes negligence.