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Giro Radix Mips
Model: Radix Mips, US style 100000000500000088 · US configuration
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Radix Mips is one trail half-shell to compare in this 57 cm assessment scenario. Giro documents Roc Loc 5 Mips, an indexed visor and S–XL sizing; the published range is only a try-on screen.
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Assessment scenario: Adult trail use at 57 cm, multi-size comparison
Assessment scenario only, not a claim about your intent: an adult compares reviewed MTB half-shells for trail riding with a measured 57 cm circumference and no added CPSC or Spherical/Mips filter. A chart range is only a reason to try on the exact model, not a fit result.
Explore this buying guide ↗Why consider this model?
- The exact US style 088 family is listed in Giro's MTB range and described for trail riding.
- Giro's S–XL chart intervals span 51–65 cm; 57 cm falls within that span, but only a try-on can establish fit.
- The exact page names Roc Loc 5 Mips, an indexed P.O.V. visor and 300 g for size M.
- The observed model uses integrated Mips, not the narrower Spherical/Mips design requested by some riders.
Tradeoffs to weigh
- The exact US page lists CE EN 1078 but does not state CPSC compliance; that remains unknown and cannot satisfy a CPSC requirement.
- No numeric vent count, individual head-shape guidance or independent cooling/impact test is recorded.
- The size-M weight is a manufacturer figure, not an independent measurement.
Check these before ordering
- Confirm US Radix Mips style 100000000500000088 and the intended size, color and package; do not infer details from another Radix listing.
- Inspect the exact helmet's compliance label and current product notices; the captured page does not establish CPSC compliance.
- Try the helmet on level and secure, adjust straps and retention as instructed, and check visor fit, seller condition and return terms.