Common Causes of Motorcycle Accidents in San Bernardino and How To Build Your Case

May 27, 2026
Sandy Danto
★★★★★
Nancy Shaw and Victor were extremely hands-on and explained everything step by step so I understood what was going on in my case. Even at times when I would lose my temper, they were understanding and patient with me. They made sure I was doing well physically and mentally. Communication was great. They got me the best possible outcome in my settlement. Would recommend them to anyone who’s ever been injured by no fault of their own.
Mariela Aguilar
★★★★★
I recently had the pleasure of working with Jazmin at LA Century Law I can’t recommend her highly enough! If you are looking to speak to someone with expertise and passion, she is the one to go to! Thank you so much Jazmin for all your help!
Deja Gonzales
★★★★★
LA Century Law Firm has an exceptional team that is dedicated to their clients. I would highly recommend anyone that may need legal services to check out this firm. Jason B will take care of you! He is quick to answer any questions or concerns you may have and will get you the best possible outcome!
Lupe Rodriguez
★★★★★
Very satisfied! Great Team to work with! Gave updates on time, contact with them has always been easy, very supportive in my decisions, always a pleasure to speak too as well! I would definitely Recommend!
Lauren S.
★★★★★
I was in an auto accident and wasn’t sure the process of how to handle it and get the care that I needed. As soon as I found Ryan, him and his team were able to walk me through the process, answered all of my questions and were super attentive throughout. They really care for the well-being of their clients. I would highly recommend LA Century Law!
Jo Vincent
★★★★★
LA Century Law is hands down amazing. They're efficient, communicative, and just all-around great. Ann and Stacy are an excellent team and I couldn't be happier I chose to go with their firm. Do yourself a favor and entrust your case with them. You will not be disappointed.

If you’re hurt in a motorcycle accident, you may wonder what to do next. You may wonder about the common causes of motorcycle accidents and how to build your case. Our experienced San Bernardino motorcycle accident lawyers at LA Century Law explain.

Motorcycle Accidents – A Common Problem in San Bernardino

Motorcycle accidents are tragically common in the San Bernardino-Riverside area:

  • In 2023, 5.75% of people hurt and killed in traffic accidents in San Bernardino County were motorcyclists (870 motorcyclist injuries/deaths of 15,118 total injuries/deaths).
  • In the City of San Bernardino, 90 motorcyclists were injured or killed in 2023, and 6.1% of total motor vehicle injuries and deaths in the City of San Bernardino were motorcyclists.
  • In California, 14% of traffic fatalities involve motorcyclists. There were 583 total motorcyclist fatalities in 2023.

According to UC Berkeley, San Bernardino ranks fourth among California cities for motorcycle fatalities and serious injuries:

Rank    City Fatalities   Serious Injuries
1 Los Angeles 125 754
2 San Diego 52 317
3 Riverside 50 210
4 San Bernardino 48 179
5 Orange 42 140

 

Data from 2023.

The Most Frequent Causes of San Bernardino Motorcycle Crashes

The most common causes of motorcycle crashes in California, including San Bernardino, are:

  1. Unsafe speed – 28.2%
  2. Improper turning – 19.8%
  3. Automobile right of way – 19.3%
  4. Drunk driving* – 8.7%
  5. Improper lane change – 5.2%

*The drunk driving statistic includes the operation of a bicycle while intoxicated.

Source: UC Berkeley, Safe Transportation Research and Education Center, 2025 SafeTREC Traffic Safety Facts: Motorcycle Safety.

The most common causes of motorcycle accidents are human factors

The top factors in California motorcycle crashes are human factors. For example, drivers must obey speed limits and adjust their speed to road conditions. Drivers must observe right-of-way rules. These top causes of motorcycle accidents result from human error, poor judgment, and careless driving. In addition to driver behavior, vehicle characteristics, and roadway design can also contribute to a crash.

Where do San Bernardino motorcycle crashes occur?

San Bernardino motorcycle crashes occur on freeways, county roads, and local streets. Main roads in San Bernardino include:

  • I-10 (San Bernardino freeway)
  • I-15 (Barstow Freeway/Ontario Freeway)
  • I-40 (Needles Freeway)
  • I-215 (Barstow Freeway/Escondido Freeway)
  • I-210 (Foothill Freeway)
  • SR 210, SR 62, SR 330 (Rim of the World Highway), SR 83
  • County Route 66

Motorcycle accidents on any type of road can cause significant injury.

How Fault Is Determined in California Motorcycle Accidents

Fault in California motorcycle accidents is determined by negligence. California law requires every person, company, or organization to act reasonably. When someone acts negligently in a way that hurts someone else, the negligent party is legally at fault. Fault can be the basis of a compensation claim.

The main questions for evaluating fault for a motorcycle accident in California are:

Whose actions caused the accident?

Were those actions reasonable, or unreasonable?

Did the person’s unreasonable actions result in the victim’s injuries?

A person can be unreasonable because of something that they do, like changing lanes when it’s not safe. A person can also be unreasonable by failing to do something, such as not reducing their speed in inclement weather.

Motorcycle accidents are evaluated on a case-by-case basis

Each motorcycle accident claim is evaluated individually to determine fault.

  • One person may be at fault for a motorcycle accident, or multiple people may be at fault.
  • The party responsible may be a vehicle driver, a vehicle manufacturer, a government entity that manages the roads, or someone else entirely.
  • A person, corporation, organization, or government entity may be responsible for a motorcycle accident.
  • Often, fault is based on a moving violation, but a moving violation is not required to be at fault.
  • California’s pure comparative fault applies in San Bernardino motorcycle accident claims.

A victim must prove fault to claim compensation.

The Role of Expert Witnesses in Your Motorcycle Case

Expert witnesses may play an important role in a motorcycle accident claim.

An expert witness can explain the pain and suffering that the victim has endured from their injuries. An expert can describe the extent of permanent impairment. They may discuss the financial impact of injuries.

There are many types of expert witnesses. A lawyer can help you determine which experts may benefit your case. They can prepare expert witnesses for your case.

Documenting Your Injuries: What Your Attorney Will Need

When you meet with your attorney, bring all the documentation you have. Your attorney will need a copy of the accident report and your medical records. They will need your income information. A list of witnesses can give your attorney a starting point to build your case. Your attorney can explain how to journal your recovery to build evidence of pain and suffering and other non-economic damages.

Why You Shouldn’t Wait To Hire an Attorney After a Motorcycle Crash

When you’re hurt in a motorcycle accident, you need to focus on healing. That’s hard to do when you’re navigating a legal claim by yourself.

An attorney can gather evidence when it’s most available, immediately after the accident. They know what to ask witnesses. They can identify things that may be important later in the case. Addressing these issues early can save time during your case. It can also maximize your compensation by building the evidence for your claim.

LA Century Law’s Approach to Motorcycle Accident Litigation

At LA Century Law, we believe that motorcyclists have important rights. Our philosophy is to handle the legal process for you so that you can focus on your recovery. Our legal team devotes the time and resources to maximizing case results for our clients.

We know that being a motorcycle accident victim is hard. Our legal team investigates and gathers evidence. When you choose LA Century Law, you have the support of our entire team. We’ll create a custom case plan tailored to your needs and goals.

Talk to a Lawyer

Whether the cause of your motorcycle accident is common or uncommon, you deserve fair compensation. LA Century Law can build your case. We are currently taking new cases in San Bernardino, so call or message us now.

Get Help Now
With Your Personal Injury Case
Free Consultation

310-893-0553

Available 24/7

It’s easy to get started.

"*" indicates required fields

Name
Address
phoneCall Us Today - It's Free!