Troy Lee Designs A3 MIPS
Tested in 2026
Adult
Mountain bike open-face
Score
82.4
out of 100
Star rating
4/5 Stars
Price
$
$
$
$
over $270
Performance
Specifications
Performance
Each metric is weighted differently based on crash severity. Scores combine to create the overall 100-point rating.
Helmet coverage
5.4
/ 6
Retention system strength
6.0
/ 6
Head protection in low-speed impact
12.0
/ 12
Angular head impact protection
32.0
/ 32
Head protection from concentrated impact
8.0
/ 8
Head protection in higher-speed impact
6.3
/ 12
Head protection variability in higher-speed impact
0.0
/ 2
Head protection variability in low-speed impact
1.0
/ 2
Helmet stability in a crash
6.0
/ 6
Head protection in standard-speed impact
5.7
/ 12
Head protection variability in standard-speed impact
0.0
/ 2
Total
82.4
/ 100
Specifications
Model
A3 MIPS
Brand
Troy Lee Designs
Size
XS/S and L/XXL
Helmet Type
Mountain bike open-face
Weight (Average from 3 sizes)
413g
Shell/Liner material
Polycarbonate
AIMS
YES
AIMS Type
MIPS
Retention System
Fidlock
Price Range
$$$$ (over $270)
Certification standard(s)
AS/NZS2063:2008
