How Often Should You Replace a Bike Helmet?

Your bike helmet is built to protect you, but it isn’t designed to last forever. Sunlight, sweat, and everyday knocks all weaken the materials over time. So how often do you actually need to replace it?

The Short Answer

Most safety experts recommend replacing your helmet every 3 to 5 years.
That’s the typical lifespan of the protective foam and straps, even if you’ve never had a crash.

And if you’ve had any fall where your head hit the ground (even lightly!) you should replace it immediately.

Why Helmets Wear Out

Bike helmets are made from lightweight foam and shells that absorb impact. Over time, they naturally degrade due to:

• UV exposure

• Temperature changes

• Sweat and oils

• Small knocks during storage or travel

These factors can create micro-cracks or weaken the liner, reducing protection.

Signs Your Helmet Needs Replacing

• Dents, cracks, or white stress marks

• Frayed or stretched straps

• Crumbling or loose interior padding

• A faded, brittle, or chalky outer shell

After a Crash, Replace Immediately

If your head made contact with anything during a fall, get a new helmet straight away.
The foam inside is designed to compress on impact and won’t spring back, meaning it won’t protect you properly a second time.

What Makes Dashel Helmets Different?

At Dashel, helmets are designed to last longer and have a gentler environmental footprint.

• Durable eco-composite liners maintain performance over years.

• Replaceable interior pads let you refresh comfort and fit.

• Through the ReCycle take-back scheme, every old Dashel helmet can be fully recycled in the UK so nothing goes to landfill.

Top Tips to Extend Helmet Life

• Store your helmet in a cool, dry place away from direct heat or sunlight.

• Clean it gently using mild soap and water.

• Hang it by the straps rather than placing weight on the shell.

• Replace interior pads every 1–2 years.

The Bottom Line

Helmets don’t last forever, but with proper care, they can protect you for thousands of miles. Check yours regularly, and if it’s showing signs of age, consider upgrading to a long-lasting, sustainable design from Dashel.

Shop Dashel Helmets →
https://www.dashel.co.uk/collections/all