Last updated: August 2026
The most common causes of motorcycle accidents in San Antonio include left-turning vehicles, cars that fail to see motorcyclists when changing lanes, opened car doors, dangerous road conditions, speeding, and impaired riding. More than half of fatal motorcycle crashes in Texas involve another vehicle whose driver simply didn’t see the rider.
No vehicle crash is more dangerous than a motorcycle crash. With a rider’s body exposed and few of the safety systems that protect people in cars, even a minor collision can cause serious or fatal injuries.
The best way to walk away from an accident is to avoid it in the first place. Understanding the leading causes of motorcycle accidents—both those within a rider’s control and those that aren’t—can help you ride more defensively on San Antonio’s roads and highways.
Motorcycle crashes remain a serious problem statewide. According to the Texas Department of Transportation, there were more than 9,000 motorcycle crashes in Texas in 2024, and 585 riders lost their lives, with more than half of fatal crashes resulting from collisions with other vehicles.
What Causes of Motorcycle Accidents Are Outside a Rider’s Control?
Many motorcycle accidents aren’t the rider’s fault. Common causes outside a rider’s control include opened car doors, dangerous road conditions, inexperienced or inattentive drivers, mechanical failures, and sudden stops by vehicles ahead.
San Antonio sees a significant number of motorcycle accidents, and not all of them can be prevented by the rider. Some crashes are simply caused by other drivers or conditions beyond your control. Still, awareness of these hazards can help you react in time:
- Car doors (“dooring”): Riding near the parking lane is risky—drivers who don’t check their mirrors before opening a door can knock a motorcyclist off their bike. Keep extra distance from parked cars.
- Dangerous road conditions: Potholes, loose gravel, debris, and uneven pavement are far more hazardous on two wheels than four. Slow down when you spot poor road conditions, though they can be hard to see in time.
- Inattentive or inexperienced drivers: You can’t control how skilled or alert other drivers are. Ride as if every driver might not see you, and never assume a driver will yield.
- Mechanical failures: Brake, tire, or other equipment failures can cause a crash. Regular maintenance and pre-ride inspections are the best defense.
- Sudden stops: A vehicle stopping short can force you to brake hard—potentially sending you over the handlebars or into the vehicle. Always leave extra following distance.
Even for hazards you can’t control, defensive riding and awareness reduce your risk.
What Causes of Motorcycle Accidents Can Riders Prevent?
Riders can prevent many accidents by avoiding impaired riding, not speeding, making cautious left turns, changing lanes safely, and avoiding risky maneuvers like lane splitting. These are the causes most within your control.
Some of the most common accident causes are also the most preventable with a little forethought:
- Riding impaired: Never ride under the influence of alcohol or drugs. Impairment slows reaction time and judgment, and on a motorcycle the consequences are often fatal.
- Speeding: Speed reduces your time to react, lengthens your stopping distance, and makes any crash far more severe. Riding within the limit is one of the simplest ways to stay safe.
- Unsafe left turns: Left turns are among the most dangerous maneuvers. Confirm you have the right of way and clear the oncoming lane as quickly and safely as possible.
- Unsafe lane changes: Check mirrors and blind spots and signal clearly before changing lanes, especially on the highway.
- Lane splitting: Riding between lanes of traffic is illegal in Texas and dangerous—drivers don’t expect a motorcycle there and may change lanes into you. Stay in your lane.
Note that lane splitting is not legal in Texas. Riders should always travel within a single lane.
Where Do Most Motorcycle Accidents Happen?
Most motorcycle collisions occur at intersections and during lane changes, where drivers are most likely to miss a motorcycle. Left-turning vehicles turning across a rider’s path are one of the leading causes of serious motorcycle crashes.
Intersections are especially dangerous for motorcyclists. A driver waiting to turn left may look for cars but fail to register an approaching motorcycle—or misjudge how fast it’s traveling—and turn directly into the rider’s path.
Because a motorcycle’s smaller profile makes it harder to see and easier to misjudge, riders should approach intersections with heightened caution, cover their brakes, and stay visible. Extra following distance and lane positioning that keeps you in drivers’ sightlines can make a real difference.
What Should You Do After a Motorcycle Accident in San Antonio?
After a motorcycle accident: get to safety, call 911 for police and medical help, photograph the scene and your bike, exchange information with other drivers, write down everything you remember, and request a copy of the police report.
Taking the right steps after a crash protects both your health and any future claim:
- Get to safety: Move out of the roadway and away from traffic if you’re able.
- Call for help: Call 911 for police and medical assistance. Even if you feel fine, get evaluated—adrenaline can mask serious injuries.
- Document the scene: If you’re able, photograph your bike, the other vehicles, the roadway, and any visible injuries.
- Exchange information: Get insurance and contact details from any other drivers involved, plus contact information for witnesses.
- Write down what happened: As soon as you can, record every detail you remember. You can always trim it later—memories fade fast.
- Request the police report: Ask how to obtain a copy of the official crash report, which will be important for insurance and any legal claim.
Do You Need a Lawyer After a Motorcycle Accident?
If you were injured or another driver was at fault, an experienced motorcycle accident attorney can help you file an insurance claim, pursue damages, and protect you from liability. Legal guidance is especially valuable given how severe motorcycle injuries tend to be.
After seeing to your medical needs, you’ll likely face decisions about filing an insurance claim, seeking compensation from an at-fault party, or defending yourself against a claim. Motorcycle cases can be complex—insurers sometimes unfairly blame riders—and the injuries are often serious, which raises the stakes.
An experienced attorney can investigate the crash, deal with the insurance companies, and fight for the compensation you deserve for medical bills, lost wages, and other damages.
Injured in a San Antonio Motorcycle Accident?
If you’ve been in a motorcycle accident, get medical help first—then let an experienced team help you protect your rights. At Barry Deacon Law, we bring experience and knowledge to every case, and we’re ready to hear about your situation.
Call (210) 985-8398 for English-speaking clients or (210) 796-4933 for Spanish-speaking clients to learn how we can help.
