Bontrager Rally WaveCel.
WaveCel liner collapses in wave pattern during impact to redirect rotational forces, with mountain-specific shape and extended coverage.
The Verdict.
Gavler Meta-Score
“The Rally WaveCel makes advanced helmet safety affordable. WaveCel's three-stage collapse provides genuine rotational protection, and the Rally backs it with a 5-star Virginia Tech rating and extended trail coverage. The catch is airflow: it runs hotter than a conventional helmet, with a prominent brow. At $150 it's the cheapest route into WaveCel — just buy it for the protection, not the cooling.”
The Gavler Verdict
Precision Engineering
WaveCel Liner
Collapsible cellular structure flexes, crumbles, and glides to absorb both linear and rotational impact forces.
5-Star Virginia Tech
Independently rated 5 stars by the Virginia Tech Helmet Lab, among the safest trail helmets tested.
BOA Fit System
Micro-adjustable BOA dial gives a precise, secure one-handed fit, particularly on rounder head shapes.
Technical Specifications
The Scoreboard
A 5-star Virginia Tech rating and the cheapest entry into WaveCel earn strong marks; the early '48x' marketing claim is widely disputed and not the reason to buy it. Marked down for reduced cooling airflow and a prominent brow line versus conventional vented helmets.
Cast Your Vote
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Best Price Availability.
Prices checked April 2026
Price History
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$150
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$150
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Global Critique
“WaveCel's corrugated crumple layer made Bontrager's Blaze the safest MTB helmet around — now you get the same tech for a whole lot cheaper.”
“Cooling airflow is much lower than a conventional helmet with a similar vent arrangement.”
“WaveCel protection at a reasonable price.”
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