OutdoorGearLab

The Troy Lee Designs D3 Fiberlite is a high-end helmet at an impressive price tag. The D3 Fiberlite borrows many features from the more expensive models in the Troy Lee line and packages them in a more affordable, fiberglass shell. This helmet delivers a high level of comfort with plush padding and a crowd-pleasing fit. The heavier construction is confidence-inspiring, and we felt secure and well-protected at high speeds and while hitting jumps. This lid is moderately priced, but we feel it represents an excellent blend of quality and price.
The D3 Fiberlite isn't quite perfect. This is one of the heaviest helmets in our review and is not the helmet we would choose for anything but pure gravity riding. It is best suited for riding lifts at the bike park, racing, and burly freeriding. We also found its ventilation/breathability to be a bit below average. While we feel it is a very protective helmet, it does not come with any sort of rotational impact protection system.
Read more: Troy Lee Designs D3 Fiberlite review

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powerreviews

The Fox Proframe RS is the Best For Enduro Racing. Sure, there are slightly lighter enduro-focused helmets available, but the Proframe RS feels more substantial, robust, and protective compared to the featherweights. This DH-certified lid has excellent airflow for mashing the pedals on a punchy mid-stage climb. The range of vision is tremendous and the visor is great. The fit is excellent and this helmet features a BOA dial and multiple cradle adjustments to fine-tune it to your head shape. If you are heading to the enduro start gate, we highly recommend this helmet. 
The Proframe RS is a dedicated enduro helmet. As a result, it isn't the best choice if you can only have one full-face helmet. Yes, it has a DH certification, but it isn't a pure downhill helmet. There are better options for ripping bike park laps all day or building sketchy freeride lines. At this price, the Proframe RS is a bit expensive as a niche helmet. In addition, while it is reasonably light and airy, there are better choices for trail rides with substantial amounts of pedaling. 
Read more: Fox Proframe RS review

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