100% Altis
Tested in 2025
Adult
Mountain bike open-face
Score
29.0
out of 100
Star rating
1/5 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
6.0
/ 6
Head protection in low-speed impact
9.5
/ 12
Angular head impact protection
10.8
/ 32
Head protection from concentrated impact
7.9
/ 8
Head protection in higher-speed impact
9.4
/ 12
Head protection variability in higher-speed impact
1.0
/ 2
Head protection variability in low-speed impact
1.0
/ 2
Helmet stability in a crash
5.4
/ 6
Head protection in standard-speed impact
2.2
/ 12
Head protection variability in standard-speed impact
0.0
/ 2
Modifier: The total score is truncated to 1 star or 29% as the headform acceleration, when tested using AS/NZS 2063 energy attenuation test, exceeds 260g.
Total
29.0
/ 100
Specifications
Brand
100% Altis
Size
XS/S, S/M, L/XL
Helmet Type
Mountain bike open-face
Weight (Average from 3 sizes)
363g
Shell/Liner material
Polycarbonate
AIMS
YES
AIMS Type
Smart Shock
Retention System
Quick Release
Price Range
$$$ ($161-$270)
Certification standard(s)
AS/NZS 2063, CPSC, EN 1078
