Giro Radix MIPS
Tested in 2025
Adult
Mountain bike open-face
Score
68.4
out of 100
Star rating
4/5 Stars
Price
$
$
$
$
$161-$270
Performance
Specifications
Performance
Each metric is weighted differently based on crash severity. Scores combine to create the overall 100-point rating.
Helmet coverage
4.7
/ 6
Retention system strength
0.9
/ 6
Head protection in low-speed impact
10.2
/ 12
Angular head impact protection
32.0
/ 32
Head protection from concentrated impact
7.3
/ 8
Head protection in higher-speed impact
5.6
/ 12
Head protection variability in higher-speed impact
0.0
/ 2
Head protection variability in low-speed impact
0.9
/ 2
Helmet stability in a crash
0.0
/ 6
Head protection in standard-speed impact
4.8
/ 12
Head protection variability in standard-speed impact
2.0
/ 2
Total
68.4
/ 100
Specifications
Model
Radix MIPS
Brand
Giro
Size
S, M, L, XL
Helmet Type
Mountain bike open-face
Weight (Average from 3 sizes)
318g
Shell/Liner material
Thermoplastic Copolymer
AIMS
YES
AIMS Type
MIPS
Retention System
Quick Release
Price Range
$$$ ($161-$270)
Certification standard(s)
AS/NZS 2063, CPSC, EN 1078
