Bike Injury·
How to Fit a Bike Helmet
A properly fitted helmet is the difference between protection and decoration. The 2V1 fit check, what affects fit, and what to keep after a crash.
Insights & Guides
Traumatic Brain Injury and Bike Crash Resources
In-depth guidance on traumatic brain injuries, cycling accidents, and the legal process, written from years of Colorado trial and litigation experience serving Denver, Boulder, Colorado Springs, and communities statewide.
By Attorney Dan D'Angelo
Trial Lawyer · Brain Injury Advocate · Avid Cyclist
Bike Injury·
Does Colorado Require Bicycle Helmets?
Colorado has no bike helmet law for regular human powered bicycles. The one exception: Class 3 e-bikes and riders under 18 must wear a specific type of helmet. Not wearing a helmet cannot be used against you. A Denver bike lawyer explains.
Bike Injury·
Colorado Bike Light Laws — and Why You Should Run Lights in Daylight Too
Colorado requires bicycles run brakes, a reflector, and lights at night. Why smart riders run them in daylight too - and how to protect your claim in the event of a crash.
Brain Injury·
You don't want to rely on a chatbot about concussion and traumatic brain injury related medical questions or for your insurance claim
Chatbots should not replace a professional medical evaluation for concussion and traumatic brain injury according to this 2026 study.
Bike Injury·
How to legally perform the "Safety Stop" aka "Idaho Stop" on your bicycle in Colorado
In Colorado, a bicyclist may treat a stop sign as a yield and a red light as a stop sign on certain conditions. Here's how to legally perform what is known as the Idaho Stop in Colorado at a stop sign and at a red traffic light.
Bike Injury·
Three reasons the fear of being judged shouldn't delay or stop you from hiring a lawyer for your personal injury case.
Why fear of how you will be judged shouldn't delay or stop you from hiring a personal injury attorney for your bicycle accident or brain injury case.
Bike Injury·
How Much Does a Denver Bike Accident Lawyer Charge on Contingency?
Nothing up front, and no fee unless there is a recovery. Here is the typical Colorado percentage range, what the law requires the fee agreement to say, why costs are a separate question, and what to ask before you sign.
Bike Injury·
It's Now Illegal in Colorado to Park, Stand, or Stop a Vehicle in a Bike Lane.
Since August 12, 2026, Colorado law bans stopping or parking in bike lanes statewide. What HB26-1237 changed, the fine, and what it means if a blocked lane caused your crash.
Bike Injury·
Does hiring a lawyer mean my bike crash case will go to a court trial?
Hiring an attorney does not automatically mean your case will end up in court. Bike Brain Law counsels its clients on the pros and cons of trial so they can decide what course of action is best for their needs.
Bike Injury·
If a cyclist is partially at-fault can they still recover damages from a crash with a motor vehicle?
Colorado's 50 percent bar means a cyclist found half at fault recovers nothing. Here is how the math works, why insurers push blame onto riders, and why you should contact a lawyer early.
Brain Injury·
Why loss of consciousness is difficult to spot and why it's so important to your legal case.
Why loss of consciousness is difficult to spot, how to identify it, and how to report it to medical professionals.
Brain Injury·
How long do brain injury symptoms last?
Not all symptoms after a concussion or mild TBI go away on their own. Some symptoms called post concussive symptoms or PCS for up to 48% of people may lost more than one year or longer.
Bike Injury·
Recognizing Signs of Concussion After a Bike Accident
Learn to recognize the signs and symptoms of a concussion following a bike accident.
Brain Injury·
Why You Don't Easily Forget How to Ride a Bicycle
Riding a bike is stored as implicit, procedural memory in the cerebellum and basal ganglia, areas more protected from TBI than memory centers responsible for facts and dates.
Brain Injury·
The ER May Have Missed Your Mild Traumatic Brain Injury Diagnosis
Studies estimate 40–50% of mild TBI patients leave the ER without a documented TBI diagnosis. You may still have a valid claim. Here's why.
Bike Injury·
How to Know If a Defect Caused a Bicycle Crash
Common signs that a bicycle defect or improper assembly caused your crash, plus exactly what to do to preserve evidence and protect your claim.
Brain Injury·
How to Find a Trusted and Experienced Traumatic Brain Injury Lawyer
The right questions to ask before hiring a TBI attorney, including experience with normal imaging, missed ER diagnoses, and insurance challenges.
Safety·
When Should You Replace Your Bicycle Helmet?
A bicycle helmet's protective lifespan is limited. Replace it after any crash, visible damage, fit changes, or every three to five years with regular use.
Safety·
Rules for Bicyclists to Follow When Riding on Colorado Trails
Multi-use trails and regional paths come with specific rules: yield to pedestrians, stay right, ride the posted speed limit, and more.
Safety·
What's a Sharrow?
A sharrow is a painted bicycle-and-chevron marking that tells drivers and cyclists they're sharing the lane and where the cyclist should ride for safety.
Safety·
Where Bicyclists Are Legally Allowed to Ride on Colorado Roadways
Bicycles are 'vehicles' in Colorado and may ride on most roads. Here's where you can ride, when you can take the lane, and the hazards you don't have to ride through.
Bike Injury·
What Bicycle Parts Can Cause a Crash If Defective or Improperly Installed?
Modern bikes have 50+ components. Here's the full list of parts that can cause a rider to lose control if defective or improperly assembled.
Bike & Brain News·
Waymo in Denver
Waymo's driverless taxis are now giving public rides in Denver — hailed through the Waymo app since September 2026. What it means for cyclists and road users.
Bike & Brain News·
Will There Be a New TBI Classification System in the Near Future?
The current mild/moderate/severe TBI grading is being challenged by a proposed new CBI-M framework that adds biomarkers, imaging, and patient-specific modifiers.
Bike & Brain News·
New Colorado Laws to Know About for 2026
Two new Colorado laws effective January 1, 2026 are relevant to bike and brain injury cases: e-bike class labeling (HB25-1197) and car seat replacement (HB25-1179).
Brain Injury·
Not All MRIs Are the Same
T1, T2, FLAIR, fMRI, SWI, DTI, MRS, and ASL are different MRI techniques that look at different brain components. Why this matters for proving a TBI.
Bike & Brain News·
Bike Brain Law Launches Website to Help Victims of Bike Crashes and Brain Injuries
Attorney Dan D'Angelo designed Bike Brain Law's website to help Colorado bicycle crash and TBI victims find answers and find a trusted, experienced lawyer.
Brain Injury·
A Negative CT or MRI May Not Rule Out a Traumatic Brain Injury
Imaging sensitivity, slice thickness, and timing all matter. A 'normal' scan does not mean no TBI occurred, particularly for mild TBI and concussion.
Brain Injury·
Is Radiology Imaging Needed to Diagnose a TBI?
No. TBIs, especially mild ones, are diagnosed using clinical factors like loss of consciousness, post-traumatic amnesia, and Glasgow Coma Scale.
Brain Injury·
Not All Traumatic Brain Injuries Are the Same
Mild, moderate, severe, and complicated mild. TBI severity classification is evolving. The new CBI-M framework aims to better reflect real outcomes.
Brain Injury·
Why Brain Injury Signs and Symptoms Can Be Difficult to Identify
TBI is often called the 'invisible injury.' Symptoms may overlap with other conditions, be delayed, or be masked by pain from other injuries.
Brain Injury·
Brain Injury Symptoms & Signs
A complete list of physical, cognitive, communication, and behavioral symptoms, plus the clinical signs doctors look for to diagnose a TBI.
Bike Injury·
Your New Bike and Store of Purchase May Be to Blame for Your Crash
Big box stores routinely fail to properly assemble bikes. Improper torque on stems, bolts, or fasteners can cause sudden, catastrophic component failure.
Bike Injury·
12 Steps to Take After a Bike Crash to Protect Your Rights
Colorado-specific guidance: from stopping at the scene to filing your own crash report when police decline to investigate. Protect your case from minute one.
Brain Injury·
What Is a Brain Injury?
Traumatic vs non-traumatic, primary vs secondary injury, and diffuse axonal injury. A foundational guide to how brain injuries occur and evolve.