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BELL Thalia True-Fit & Pinch-Guard Reflective Adult Bike Helmet

Last updated: January 19, 2024


Designed for street bicycles, this adult bike helmet is best for ladies 14 and up who have a head circumference between 54 and 58 centimeters. It's designed to be adjusted in just one step and features 16 air chambers to keep you cool when you ride. With five different colors to choose from, you can't go wrong.

We looked at the top Adult Bike Helmets and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Adult Bike Helmet you should buy.

Product Details

Key Takeaway: You'll love the budget-friendly price tag on this adult bike helmet.

In our analysis of 99 expert reviews, the BELL Thalia True-Fit & Pinch-Guard Reflective Adult Bike Helmet placed 5th when we looked at the top 14 products in the category. For the full ranking, see below.

From The Manufacturer

The Thalia women’s helmet provides great style and comfort with all the features you expect from Bell

Expert Reviews


What reviewers liked

It suits very well for head sizes of 54-58 cm. 16 vents allow the breeze to move through and make you feel comfortable. Tapeless technology, pinch guard, and integrated visor make the helmet even more flexible.

What reviewers didn't like

Although it is an adult helmet, it may not feel safe to wear it for people with large heads.
View our Adult Bike Helmet buying guide for in-depth advice and recommendations.

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