- Driver inattention. Thirty percent of all bike accidents are caused by a driver who was distracted.
- Failure to yield. Both vehicle drivers and cyclists are required to follow the traffic laws of the state they are traveling in. Many drivers fail to yield to cyclists as they would for another vehicle driver and as they are required to by law (i.e. at intersections).
- Road conditions. It is up to municipalities to maintain safe roads. Unfortunately, that isn’t always the case. More than 10 percent of bike accidents are caused by roads that were in bad repair.
- Riding at night. More than 50 percent of bike accidents happen after the sun has set. Cyclists need to wear reflective clothing and have lights on their bikes so drivers can see them.