
How to Know If a Defect Caused a Bicycle Crash
Common signs that a bicycle defect or improper assembly caused your crash — and exactly what to do to preserve evidence and protect your claim.
Insights & Guides
Practical safety guidance for Colorado cyclists. Written by Attorney Dan D'Angelo.
Cyclists are at risk of serious injuries from distracted and aggressive drivers, as well as from businesses that prioritize profit over safety by selling unsafe bikes. Part of Bike Brain Law's mission is to help improve bicycle safety by sharing important safety tips with the public.

Common signs that a bicycle defect or improper assembly caused your crash — and exactly what to do to preserve evidence and protect your claim.

Modern bikes have 50+ components. Here's the full list of parts that — if defective or improperly assembled — can cause a rider to lose control.

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.

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.

Multi-use trails and regional paths come with specific rules — yield to pedestrians, stay right, ride the posted speed limit, and more.

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.

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.
Get honest guidance from Attorney Dan D'Angelo. Free consultation, no obligation.