Bike Helmet with MIPS vs Without: Which is Safer?

The short answer: MIPS helmets are generally safer because they reduce rotational forces on the brain during angled impacts, which are common in real falls. While both types protect against direct impacts, MIPS adds a low friction layer that can lower the risk of concussion. So, if budget allows, choose a MIPS helmet for better protection.

What Is MIPS and How Does It Work?

MIPS stands for Multi-directional Impact Protection System. It is a technology that mimics the brain’s own protective mechanism. Your brain is surrounded by cerebrospinal fluid, which allows it to slide slightly inside the skull during an impact. MIPS adds a low friction layer between the helmet’s outer shell and the inner foam liner. This layer allows the outer shell to rotate a few millimeters relative to your head on angled impacts. That rotation helps redirect rotational energy away from your brain, reducing the stress on brain tissue.

Why does this matter? Most real-world cycling crashes are not straight on. They happen at an angle, hitting the ground or another object. When your head hits at an angle, the brain experiences both linear (straight line) and rotational (twisting) forces. Rotational forces are more likely to cause concussions and diffuse axonal injury, a serious brain injury. MIPS specifically targets these rotational forces.

How Much Safer Is a MIPS Helmet?

Independent studies have shown that MIPS can reduce rotational acceleration by about 30 to 50 percent compared to a similar non-MIPS helmet. However, that does not directly translate to a 30 to 50 percent reduction in concussion risk, because concussion risk depends on many factors. Nevertheless, a 2017 study in the Journal of Neurosurgery looked at 2,000 cyclists and found that those wearing MIPS helmets had a 30 percent lower risk of concussion compared to those wearing non-MIPS helmets. That is a significant difference.

It is important to note that no helmet can prevent all concussions, and MIPS is not a miracle cure. It is an added safety feature that improves your odds. Even with MIPS, you still need a helmet that fits well and meets safety standards like CPSC (in the US) or CE (in Europe).

Comparing MIPS vs Non-MIPS: Real Differences

Let’s break down the key differences:

• Protection: MIPS helmets add rotational protection; non-MIPS only handle linear forces. In a straight-on crash, they are similar. In an angled crash, MIPS is better.
• Weight: MIPS adds only about 20 to 30 grams (roughly the weight of a few paper clips) so you will barely notice it.
• Ventilation: Early MIPS helmets had reduced airflow, but modern designs integrate the MIPS layer without blocking vents. You can find MIPS helmets with excellent ventilation.
• Price: MIPS helmets typically cost $10 to $30 more than comparable non-MIPS models. This price premium is small relative to the potential benefit.
• Fit: Some riders find that the MIPS liner feels slightly different, but most brands have refined the fit. You should always try on a helmet to ensure a snug, comfortable fit.

When Might You Choose a Non-MIPS Helmet?

There are a few scenarios where a non-MIPS helmet might be acceptable:

• Budget is extremely tight: If you have only $30 to spend, a non-MIPS helmet that fits well is still far better than no helmet. But if you can stretch to $50, many MIPS helmets are available.
• Low-risk riding: If you ride only on flat, straight bike paths at slow speeds, your risk of a high-impact angled crash is lower. Still, unexpected falls happen, so MIPS is not overkill even then.
• Specialty helmets: Some niche helmets (like certain aero or time trial helmets) may not offer MIPS options. In that case, you have to weigh the aerodynamic benefit against the safety feature.

For most riders, especially those commuting or riding on roads with traffic, MIPS is a smart investment. You never know when a driver might clip you or you might swerve to avoid a pothole.

How to Choose the Right MIPS Helmet

If you decide to go with MIPS, here are practical tips:

1. Check the fit: The helmet should sit level on your head, about two finger widths above your eyebrows. It should not rock side to side. Use the retention system to adjust.
2. Look for safety certifications: In the US, look for the CPSC label. In Europe, look for CE EN 1078. Some helmets also have the newer ASTM F1447 rating for skateboarding, but for cycling, CPSC is key.
3. Consider the riding style: Road helmets are lightweight and aerodynamic. Mountain bike helmets often have a visor and more coverage in the back. Commuter helmets may include lights or a visor for rain.
4. Try before you buy: Helmets have different shapes (round, oval, intermediate). Visit a local bike shop to try on different brands. A helmet that causes pressure points will not be worn, and an unworn helmet protects nothing.
5. Check the price: While you should not compromise on safety, you do not need to spend a fortune. Many quality MIPS helmets are available for $50 to $150. Premium models with advanced ventilation and lighter materials cost more, but the basic safety is often the same.

If you want a curated list of top-rated models, see our Best Bike Helmets 2026: Which to Buy for Your Ride guide. We compare features, fit, and value to help you decide.

Frequently asked questions

Q: Is MIPS worth the extra money?
A: Most safety experts and consumer groups say yes. The added cost is relatively small (often $10 to $30), and the reduction in rotational forces can lower your risk of concussion. If you ride regularly, especially in traffic, it is a wise investment.

Q: Can I add MIPS to an existing helmet?
A: No, MIPS must be built into the helmet during manufacturing. You cannot retrofit it. If you want MIPS protection, you need to buy a helmet that includes it.

Q: Do MIPS helmets expire?
A: All helmets, MIPS or not, should be replaced every 3 to 5 years, or immediately after a crash, even if there are no visible cracks. The foam degrades over time, and the MIPS liner can also be affected. Check the manufacturer’s recommendation.

In summary, if you are choosing between a MIPS and a non-MIPS helmet, the MIPS version offers a meaningful safety advantage for a modest price increase. It is not a gimmick; it is a proven technology that reduces rotational forces. For the best protection, always select a helmet that fits well, meets safety standards, and includes MIPS if possible.

Keep readingContinue the research