Safety certifications like ECE 22.06 and Snell M2020 tell you a helmet has passed a minimum threshold. Independent rating schemes go further — they test multiple helmets at multiple impact locations and speeds, then compare them against each other rather than a single pass/fail line. The result is a more nuanced picture of real-world protection.
SHARP: The UK Government Scheme
SHARP (Safety Helmet Assessment and Rating Programme) is run by the UK government and rates helmets on a one-to-five star scale. SHARP tests impact performance at multiple points across the helmet surface — crown, front, rear, and sides — at multiple impact speeds, and publishes results for every helmet tested. A five-star SHARP rating indicates a helmet that performs well across all impact locations and speeds, not just at minimum certification thresholds. It directly compares helmets against each other — a meaningful distinction that certification alone doesn’t provide. Check the SHARP database at sharp.dft.gov.uk.
Virginia Tech STAR Rating
The Virginia Tech Helmet Lab STAR system measures linear and rotational acceleration during impacts and calculates a risk score for concussion and serious brain injury — rated on a five-star scale with a published STAR value (lower is better). Virginia Tech places particular emphasis on rotational impact management — the same angled impact energy that ECE 22.06’s rotational testing addresses. This makes it a useful complement to ECE 22.06 certification for riders interested specifically in brain injury risk. Full methodology and raw data are published at helmet.beam.vt.edu.
How to Use These Alongside Certification
The most useful approach is layered: start with ECE 22.06 certification as your baseline requirement, then check SHARP and Virginia Tech ratings for the specific helmets you’re considering. A helmet with ECE 22.06 and five SHARP stars is a stronger choice than a certified helmet with three SHARP stars. Don’t rely on any single metric — a helmet with excellent SHARP performance but poor Virginia Tech rotational scores may excel in linear impacts while leaving rotational energy management to chance. The most protection-conscious buying decision uses all available data points together.
Practical Note
Both SHARP and Virginia Tech test helmets purchased from the open market — not manufacturer-supplied samples — making their results a reliable reflection of what a real buyer receives. Database coverage is incomplete; newer models may not yet have been assessed. When a helmet hasn’t been rated, rely on certification and manufacturer reputation while waiting for independent assessment.