Diamond Bar Motorcycle Accident Lawyer

Motorcycle Accident Lawyer Diamond Bar, CA

If you have been involved in a motorcycle accident in Diamond Bar, you know that the resulting injuries can be far more severe than those sustained in typical automobile collisions. Motorcyclists bear the full force of impact without the protection of a vehicle’s structure, airbags, or crumple zones. Common injuries include road rash, fractures, head trauma, and spinal cord damage. Unfortunately, insurance adjusters often attempt to shift blame onto motorcyclists simply because they were operating a motorcycle.

Commonwealth Legal Group, PC represents injured motorcyclists throughout Diamond Bar and the San Gabriel Valley. Our Diamond Bar, CA motorcycle accident lawyer, founder Albert Ng, has been handling plaintiff-side personal injury cases since 2016 and has recovered millions for clients across all case types. He understands how insurance companies treat motorcycle riders, and he doesn’t tolerate it. Every case is taken on contingency. You pay nothing unless we win.

Reach out for a free consultation. We’ll evaluate your case and give you a direct answer about what it’s worth.

Why Choose Commonwealth Legal Group for Motorcycle Accident Cases in Diamond Bar, CA?

We Push Back Against Anti-Rider Bias

Motorcycle accident claims face a unique obstacle that car accident claims don’t: prejudice. Adjusters, defense attorneys, and sometimes jurors assume the rider was being reckless, riding too fast, weaving through traffic, or making dangerous choices. That assumption gets baked into the initial offer, the negotiation, and if it goes to trial, the defense strategy. Attorney Albert Ng knows how to counter this bias with hard evidence. Police reports, crash reconstruction data, witness testimony, and the applicable provisions of the California Vehicle Code. When the other driver is at fault, we prove it, regardless of how insurance companies try to spin the narrative.

Millions of Dollars Recovered for Injured Clients

Albert founded Commonwealth Legal Group after earning his J.D. from Thomas Jefferson School of Law in San Diego (2016) and his bachelor’s degree from Boston University (2010). He was admitted to the California Bar in December 2016 and is a member of the Consumer Attorneys Association of Los Angeles. Across all personal injury case types, he has recovered millions for clients, including a $2.2 million trial verdict in a rear-end collision where the defense offered nothing. That verdict earned a Top 50 Verdict in 2020 and was covered by the Daily Journal.

If you need a personal injury lawyer in Diamond Bar, CA who handles motorcycle crash claims, Albert has the trial record and litigation experience to pursue your case aggressively.

Contingency Fees Only

Motorcycle accident injuries are expensive. Surgery, hospitalization, physical rehabilitation, and time away from work create enormous financial pressure. We handle every motorcycle accident case on a contingency fee basis. No upfront costs. No hourly billing. If we don’t recover compensation for you, you don’t owe us a dime.

A Track Record of Taking Cases to Trial

Insurance companies settle motorcycle cases for more when they know the lawyer across the table will actually try the case if they have to. A $0 offer turned into a $2.2 million verdict because Attorney Ng prepared for trial and followed through. That reputation doesn’t just help at trial. It shapes every negotiation we have in every motorcycle accident case in Diamond Bar, CA.

Types of Motorcycle Accident Cases We Handle in Diamond Bar

Diamond Bar’s freeways and surface streets present daily hazards for motorcyclists. The SR-57 and SR-60 carry heavy, fast-moving traffic, and the surface streets connecting to them offer limited room for riders. Here are the motorcycle accident case types we handle:

• Left-turn accidents. The most common type of motorcycle collision. A driver making a left turn fails to see an oncoming motorcycle and turns directly into the rider’s path. These crashes happen at intersections throughout Diamond Bar, particularly along Diamond Bar Boulevard and Golden Springs Drive. The driver’s failure to yield is strong evidence of negligence.
• Lane-change collisions. Motorcycles sit in the blind spots of larger vehicles. A driver who changes lanes without properly checking their mirrors can sideswipe a motorcycle, sending the rider to the pavement. These crashes frequently cause back injuries and fractures.
• Rear-end crashes. A car or truck that rear-ends a stopped or slowing motorcycle can launch the rider over the handlebars. The force of a rear-end impact on a motorcycle is magnified because the bike offers no rear protection. These crashes frequently result in brain injuries and neck injuries.
• Lane-splitting accidents. California is the only state that legally permits lane splitting under Vehicle Code 21658.1. When a rider is lane splitting safely and a driver opens a door, drifts between lanes, or makes a sudden movement without checking, the driver is at fault. Insurance companies routinely try to blame the motorcyclist for lane splitting, even though it’s legal. We fight that argument with evidence.
• Hit-and-run incidents. When a driver strikes a motorcycle and flees the scene, the rider is left with severe injuries and an unidentified at-fault party. We investigate these cases using traffic cameras, business surveillance footage, witness statements, and vehicle debris analysis. If the driver is never identified, the rider’s uninsured motorist coverage may still provide compensation.
• Road hazard crashes. Potholes, gravel, oil slicks, uneven pavement, and missing signage are far more dangerous to motorcyclists than to car drivers. A pothole that a car drives over without issue can send a motorcycle airborne. When a government entity failed to maintain the road, they may share liability.

California Legal Requirements for Motorcycle Accident Cases

California has several laws that directly affect motorcycle accident claims. Knowing them helps you understand both your rights and the defenses you’re likely to face.

California is the only state in the country that legally recognizes lane splitting. Under Vehicle Code 21658.1, a motorcycle with two wheels on the ground may ride between rows of stopped or moving vehicles in the same lane. The CHP has published educational guidelines on how to lane split safely. A rider who was lane splitting within those guidelines at the time of a crash should not be penalized for it, but insurance companies will try. Having an attorney who understands this law is critical.

California’s universal helmet law requires all motorcycle riders and passengers to wear a DOT-approved helmet. Compliance with this law eliminates one of the most common defenses in motorcycle cases. If you were wearing your helmet and still suffered a head injury, the severity of the impact speaks for itself.

The statute of limitations for a motorcycle accident lawsuit is two years from the date of the crash under CCP Section 335.1. If a government entity is responsible for a dangerous road condition that contributed to the crash, the deadline for an administrative claim is six months under Government Code 911.2.

California’s comparative fault rules under Civil Code 1431.2 are frequently used against motorcyclists. Insurance companies will argue the rider was speeding, following too closely, or riding recklessly. Even if a jury assigns partial fault to the rider, the rider can still recover damages reduced by that percentage. A rider found 20% at fault on a $500,000 claim still takes home $400,000.

What Damages Are Recoverable in a Diamond Bar Motorcycle Accident?

Motorcycle injuries are almost always more severe than injuries in car-on-car collisions. The NHTSA reports that motorcyclists are 28 times more likely to die per mile traveled than car occupants. That severity translates into higher medical costs and larger damage claims.

Economic damages include every verifiable financial loss: emergency room treatment, surgery, hospitalization, physical therapy, prescription medications, assistive devices, damaged motorcycle and gear, lost wages during recovery, and reduced earning capacity if the injuries prevent you from returning to the same work. A compound leg fracture requiring multiple surgeries can easily exceed $200,000 in medical costs alone. California does not cap economic damages in personal injury cases.

Non-economic damages compensate for pain and suffering, emotional distress, scarring and disfigurement, loss of enjoyment of life, and loss of consortium. Road rash leaves permanent scarring. Spinal injuries can end a career. A rider who can no longer do the physical activities that defined their life before the crash has suffered a loss that California courts recognize and compensate.

Punitive damages may apply if the at-fault driver’s conduct was particularly egregious. Under Civil Code 3294, driving drunk, racing, or deliberately trying to intimidate a motorcyclist can support a punitive damage claim on top of compensatory recovery.

In fatal motorcycle accidents, surviving family members can pursue wrongful death claims for funeral expenses, lost income, and loss of companionship.

What Steps Should I Take After a Motorcycle Accident in Diamond Bar?

A motorcycle crash is violent, sudden, and disorienting. If you’re physically able, these steps protect both your health and your legal rights:

1. Get off the roadway if you can. If you’re able to move, get yourself out of traffic. Do not remove your helmet until a paramedic has assessed you for head and neck injuries.
2. Call 911 immediately. Request police and an ambulance. A police report is critical evidence in any motorcycle accident case. Officers document road conditions, statements from both parties, and contributing factors.
3. Get the other driver’s information. Name, phone number, driver’s license, license plate, insurance company and policy number. If the driver tries to leave, get the plate number immediately.
4. Identify witnesses. Bystanders who saw the crash can provide testimony about what the driver was doing, whether you were in your lane, and the speed of the vehicles. Their statements help counter the default assumption that the rider was at fault.
5. Photograph everything. Your injuries, your motorcycle damage, your helmet, your riding gear, the other vehicle’s damage, road conditions, lane markings, traffic signals, skid marks, and any debris. Photograph the scene from multiple angles.
6. Preserve your motorcycle, helmet, and gear. Do not repair or discard any of it. Your damaged helmet demonstrates the force of impact. Your motorcycle’s damage patterns help reconstruct how the collision occurred. Riding gear with road rash marks is physical evidence of the severity of the crash.
7. Go to the emergency room. Adrenaline after a motorcycle crash masks pain. Soft tissue injuries and internal bleeding may not produce symptoms for hours. A same-day medical evaluation documents the connection between the crash and your injuries.
8. Do not give a recorded statement. The at-fault driver’s insurance company will call. They will sound sympathetic. Their goal is to minimize your claim. Decline any recorded statement and tell them your attorney will be in touch.
9. Stay off social media. Insurance adjusters and defense attorneys monitor social media for posts that contradict your injury claims. A photo of you standing at a family event can be used to argue your injuries aren’t as bad as you say.
10. Contact a motorcycle accident attorney. Evidence in motorcycle cases disappears fast. Traffic camera footage gets overwritten. Witnesses move on. Vehicle damage gets repaired. The sooner you have legal representation, the sooner we can preserve evidence and start building your case. Learn about when to hire an attorney and post-accident steps.

Motorcycle Accident Statistics in Diamond Bar

The numbers are grim. According to the NHTSA, 6,335 motorcyclists were killed nationwide in 2023, the highest number since federal record-keeping began in 1975. Motorcyclists made up 15% of all traffic fatalities despite accounting for only 3.3% of registered vehicles and 0.6% of vehicle miles traveled. The fatality rate for motorcyclists per 100 million vehicle miles traveled was 31.39, nearly 28 times higher than the rate for passenger car occupants.

California recorded 583 motorcycle fatalities in 2023, according to the Office of Traffic Safety. That’s a 10.2% decrease from 649 in 2022, but still a 19% increase from 2019 pre-pandemic levels. The UC Berkeley SafeTREC reports that 14% of all motor vehicle fatalities in California in 2023 were motorcyclists. Urban crashes accounted for 73% of all fatal motorcycle collisions, and unsafe speed was the primary crash factor in 28% of fatal and serious injury motorcycle crashes.

Los Angeles County is the most dangerous place to ride a motorcycle in California. The county reported 2,803 motorcycle accidents in 2021, resulting in 133 deaths and over 3,000 injuries. Diamond Bar, located within LA County at the SR-57/SR-60 interchange, sees heavy traffic volumes and the kind of fast-moving, multi-lane conditions where motorcycle accidents are most likely to occur. The ongoing construction from the $444 million interchange improvement project has added lane shifts and altered traffic patterns that create additional risks for riders navigating through the corridor.

Diamond Bar Motorcycle Accident Lawyer FAQs

Is lane splitting legal in California?

Yes. California is the only state where lane splitting is legal. Vehicle Code 21658.1 defines it as riding a two-wheeled motorcycle between rows of stopped or moving vehicles in the same lane. The CHP has published safety guidelines for doing it responsibly. A rider who was lane splitting safely at the time of a crash should not be penalized for it.

What if the insurance company blames me for the accident because I was on a motorcycle?

That’s the default strategy, and we’re prepared for it. We counter anti-rider bias with evidence: the police report, witness statements, crash reconstruction, traffic camera footage, and the applicable sections of the Vehicle Code. California law gives motorcyclists the same rights as other drivers.

How much is a motorcycle accident case worth?

It depends on the severity of injuries, available insurance coverage, and the strength of the evidence. Motorcycle injuries tend to be more severe than car accident injuries, which typically means higher medical costs and larger damage claims. Attorney Ng can provide a realistic assessment during a free consultation.

Do I have to wear a helmet in California?

Yes. California has a universal helmet law that applies to all riders and passengers regardless of age. Wearing a DOT-approved helmet is required by law and eliminates one of the most common defenses insurers use to reduce claims.

What if I wasn’t wearing a helmet when the accident happened?

You can still pursue a claim, but the defense will argue that the lack of a helmet contributed to your injuries, particularly head and face injuries. Under California’s comparative fault rules, this could reduce your recovery. However, it does not eliminate your claim.

Who is at fault in a left-turn motorcycle accident?

In most cases, the driver making the left turn is at fault for failing to yield to an oncoming motorcycle. California Vehicle Code 21801 requires left-turning drivers to yield to approaching traffic. The driver’s failure to see the motorcycle is not a defense.

How long do I have to file a motorcycle accident lawsuit?

Two years from the date of the accident under CCP Section 335.1. Government entity claims have a six-month administrative claim deadline. Contact an attorney early to preserve evidence.

Can I still recover damages if I was partially at fault?

Yes. California’s pure comparative fault system means your recovery is reduced by your percentage of fault but not eliminated. If you’re found 25% responsible and damages total $400,000, you recover $300,000.

What injuries are most common in motorcycle accidents?

Road rash, broken bones (collarbone, wrists, legs, pelvis), traumatic brain injuries, spinal cord damage, internal organ injuries, facial fractures, nerve damage, and in the worst cases, death. The NHTSA reports that 80% of motorcycle crashes result in injury or death.

Should I preserve my damaged motorcycle and gear?

Absolutely. Do not repair or discard your bike, helmet, or riding gear. They are physical evidence. A cracked helmet shows impact force. Motorcycle damage patterns help reconstruct the collision. Your gear with road rash marks documents the severity of the crash.

Can I sue if a road hazard caused my crash?

Potentially. Potholes, gravel, uneven pavement, and missing signage are more dangerous to motorcyclists than to car drivers. If the government entity responsible for maintaining the road failed to address a known hazard, they may share liability. These claims have shorter deadlines.

What if the other driver fled the scene?

Report the hit-and-run to police immediately. Your uninsured motorist coverage may apply. We also investigate using traffic cameras, business surveillance video, and vehicle debris to identify the driver.

Do I need a lawyer for a motorcycle accident?

Motorcycle cases face unique challenges that standard car accident claims don’t, primarily the anti-rider bias from insurance companies and jurors. A motorcycle accident attorney in Diamond Bar, CA understands how to counter that bias, calculate the full value of severe injuries, and fight for compensation from every available source.

What happens if the driver who hit me was uninsured?

Your own uninsured/underinsured motorist coverage is the primary source of recovery. We also investigate whether the at-fault driver has personal assets that could satisfy a judgment.

Can a passenger on my motorcycle file a claim?

Yes. A motorcycle passenger injured in a crash can file a claim against the at-fault driver. If the motorcycle operator was at fault, the passenger can file against the rider’s insurance. Passengers bear no fault for the crash.

Most Dangerous Locations for Motorcycle Accidents in Diamond Bar

Certain Diamond Bar roads and corridors pose elevated risks for motorcycle riders:

SR-57/SR-60 interchange. The most dangerous stretch for all vehicles in Diamond Bar, and especially for motorcyclists. High speeds, complex lane-weaving movements, and heavy truck traffic create conditions where a car driver’s failure to check mirrors before changing lanes can be fatal for a rider.

SR-60 (Pomona Freeway). This east-west corridor through Diamond Bar carries fast-moving traffic and ongoing construction from the interchange improvement project. Lane shifts and narrowed lanes create additional risks for motorcyclists.

Diamond Bar Boulevard. The city’s main commercial corridor has heavy intersection traffic. Left-turn accidents involving motorcycles are particularly common at the signalized intersections along this road.

Golden Springs Drive and Grand Avenue. Vehicles entering and exiting the freeways create fast-moving merge conflicts that are especially dangerous for motorcycles in adjacent lanes.

Brea Canyon Road and Pathfinder Road. Curves, grade changes, and vehicles exceeding posted speeds make these residential connectors hazardous for riders, particularly in the early morning and evening hours when visibility is reduced.

Most Dangerous Locations for Motorcycle Accidents in Diamond Bar

If you’ve been injured in a motorcycle crash in Diamond Bar, these resources can help:

Walnut/Diamond Bar Sheriff’s Station (LA County Sheriff), (626) 913-1715, 21695 E. Valley Blvd., Walnut, CA 91789. File a police report or obtain a copy of an existing one.

California Highway Patrol, Baldwin Park Area, (626) 338-1164. CHP investigates motorcycle accidents on SR-57, SR-60, and other state highways.

Pomona Valley Hospital Medical Center, (909) 865-9500, 1798 N. Garey Ave., Pomona, CA 91767. Emergency department and trauma center for motorcycle crash injuries.

Diamond Bar City Hall, (909) 839-7000, 21810 Copley Dr., Diamond Bar, CA 91765. Report road hazards, potholes, or construction zone issues that create danger for riders.

Disclaimer: Listing these resources does not constitute an endorsement by Commonwealth Legal Group, PC. They are provided for informational purposes only.

Commonwealth Legal Group, PC, Diamond Bar Motorcycle Accident Lawyer

1470 Valley Vista Dr, Suite 174, Diamond Bar, CA 91765

Contact Commonwealth Legal Group

If a car driver’s negligence put you down on your motorcycle in Diamond Bar, CA, you deserve an attorney who won’t let an insurance company blame you for being a rider. Attorney Albert Ng provides free consultations and takes every motorcycle accident case on contingency. No upfront fees. No risk. We respond quickly and give straightforward assessments from the first conversation.

Contact us to schedule your free case evaluation today.