If you ride a bicycle in Colorado, whether in Denver or anywhere across the state, understanding the law isn’t optional. It’s one of the most important ways to protect yourself on the road!
From the “Safety Stop” rule to required passing distances, Colorado has specific laws designed to keep cyclists safe. Unfortunately, many drivers (and even riders) don’t fully understand them, and this can lead to serious accidents.
This guide breaks down the core Colorado bicycle laws you need to know, based on the Colorado Department of Transportation and Colorado Revised Statutes (C.R.S.).
Colorado Bicycle Laws at a Glance (Quick Summary)
- Cyclists can treat stop signs as yield signs in many situations
- Drivers must give cyclists at least 3 feet of space when passing
- Cyclists can legally “take the lane” when needed
- Riding two abreast is allowed (with limitations)
- Proper lighting is required at night
- Sidewalk riding laws vary by city (and are restricted in Denver)
The Colorado “Safety Stop” Law (C.R.S. § 42-4-1412.5)
One of the most important updates to Colorado cycling laws is the Safety Stop, which allows for more efficient and safer riding.
Stop Signs
Cyclists may treat stop signs as yield signs:
- Slow to a safe speed (10 mph or less)
- Proceed without stopping if the intersection is clear
Red Lights
Cyclists must:
- Come to a complete stop
- Yield to pedestrians and traffic
- Proceed straight or turn right when safe
Note: Left turns on red are only allowed onto one-way streets.
This law reduces unnecessary stopping while still prioritizing safety and right-of-way for cyclists.
Where Should Cyclists Ride? (C.R.S. § 42-4-1412)
Cyclists are generally expected to ride as far right as safely possible, but there are important exceptions.
You can take the full lane if:
- You’re avoiding hazards (potholes, debris, parked cars)
- You’re preparing to turn left
- The lane is too narrow to share safely with a vehicle
Taking the lane is not only legal—it is often the safest way to prevent collisions.
Colorado’s 3-Foot Passing Law (C.R.S. § 42-4-1003)
It is important to note that Drivers must give cyclists at least 3 feet of space when passing.
Failing to provide this space is one of the leading causes of bicycle accidents in Colorado and can result in legal liability if a crash occurs.
Can Cyclists Ride Side-by-Side in Colorado?
Yes—Colorado law allows cyclists to ride two abreast, as long as they do not block or slow the normal flow of traffic.
If vehicles begin to back up behind you, you should move into a single-file line.
Required Bicycle Equipment in Colorado (C.R.S. § 42-4-221)
If you ride at night, your bicycle must have:
- A white front headlight visible from at least 500 feet
- A red rear reflector visible from at least 600 feet
These requirements are essential for visibility and can significantly reduce accident risk.
Is It Legal to Ride a Bike on the Sidewalk in Denver?
Sidewalk laws vary by city, but in Denver:
- Riding a bicycle or e-scooter on sidewalks is generally illegal
- This applies throughout most of the city, including downtown areas
- Exceptions may apply in limited situations
In Denver, cyclists are expected to use bike lanes or roadways.
Common Causes of Bicycle Accidents in Colorado
Even when cyclists follow the law, accidents still happen—often due to driver negligence.
The most common causes include:
- Drivers failing to yield to cyclists
- Unsafe passing (less than 3 feet)
- Distracted driving
- Dooring accidents
- Ignoring bike lane boundaries
What to Do After a Bicycle Accident in Colorado
If you’ve been involved in a bicycle accident:
- Call 911 and report the accident
- Seek medical attention immediately
- Document the scene (photos, witnesses, vehicle info)
- Avoid speaking to insurance companies without legal advice
Injured in a Bicycle Accident? We Can Help!
Bicycle accidents can change everything in an instant, leaving you with serious injuries, mounting medical bills, and time away from work. And too often, these crashes happen because of a driver’s negligence.
If that’s the case, you shouldn’t be left to deal with the aftermath on your own—you may be entitled to compensation.
At The Wilhite Law Firm, we fight for injured cyclists across Colorado and are committed to helping you get the support and results you deserve.
Call 303-GOOD-LAW or visit WilhiteWins.com for a free consultation today.
