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Bontrager Rally WaveCel helmet review

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Liam Mercer's picture

Liam Mercer

Since beginning his mountain biking career while working as a resort photographer in Greece in 2014, Liam became a freelance contributor at off.road.cc in 2019. From there, he’s climbed the journalism job ladder from staff writer to deputy technical editor, now finding his place as technical editor.

Partial to the odd enduro race, heart rate-raising efforts on slim-tyred cross-country bikes, hell-for-leather e-MTB blasts or even casual gravel jaunts, there’s not a corner of off-road cycling where Liam fears to tread. With more than 40 bike reviews under his belt and hundreds more on MTB, e-MTB and gravel parts and accessories, Liam’s expertise continues to be cemented and respected by the industry.

Product reviews

The Rally WaveCel from Bontrager shares the looks of the brand's flagship Blaze helmet. Although it does away with some of the cool techy bits of its pricier sibling, the Rally brings WaveCel at a wallet-friendly price. It's comfortable and the shape looks rather nice, however it's weighty and fairly warm.

With the fancy WaveCel tech, the Rally gets a Boa fit system, adjustable visor, lockdown strap dividers, and moisture-wicking pads. Rather than the Fidlock found on the Blaze, it gets a traditional clip closure.

You may have seen WaveCel introduced with Bontrager's Blaze helmet (see our review here). While offering a similar form of protection to MIPS, it’s more akin to Smith's Koroyd tech, as it uses a cellular structure rather than a cradle and pivots.

2020 Bontrager Rally WaveCel interior.jpg

WaveCel is designed to use three stages. First, the material flexes, to reduce initial frictional forces; it then crumples and finally glides to redirect energy around your head.

2020 Bontrager Rally WaveCel front.jpg

One thing that’s clear with the Rally is that it’s built very, very nicely. It’s a solid helmet with its plastic outer bending around the rim of the lid, which protects the foam there from damage. However, its planted feel makes it a heavy little number, weighing in at 400g in a medium.

2020 Bontrager Rally WaveCel back.jpg

Fortunately, the helmet does a reasonable job at hiding its weight, and it's comfortable thanks to the pads inside. The Boa fit system helps too, allowing the user to micro-adjust the helmet to their head.

2020 Bontrager Rally WaveCel boa.jpg

That’s where the positives seem to fade away. There’s no getting away from it – this is a very warm hat. Even with those sizeable vents, the super safe WaveCel material stops a great deal of airflow in its tracks. Because of this, slow and warm climbs get that bit sweatier.

2020 Bontrager Rally WaveCel wear.jpg

Something that may not affect everyone but certainly bothered me is that the rather chunky brow sits quite low. If you’re a fan of big sunglasses, the helmet perches on top of them, putting pressure on your nose. If you ride with smaller glasses, or better yet, none at all, you’ll be absolutely fine here.

If you’re prepared to sacrifice weight and cooling for what could be an incredibly safe helmet (fortunately I haven’t had a chance to test WaveCel in a tumble) the Bontrager Rally WaveCel isn’t a bad choice. It’s comfortable, well priced and I personally think its shape looks pretty sharp. If you wear glasses or run hot, however, it's probably best avoided.

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