Verdict
All guidesResearchMethodologyAboutContact
Head-to-head · Best Bike Helmets

Giro Guider 4 vs Giro Tremor Mips Child Helmet

Which is the better buy? Side-by-side on rating, price, strengths, and watch-outs — with the published ratings we averaged to get there.

The short answer

Giro Tremor Mips Child Helmet comes out ahead by a narrow margin (4.4 vs 4.5). The gap is mostly about parents seeking MIPS safety for kids — read the strengths below before deciding.

Giro Guider 4
Ranked #4 in Best Bike Helmets
Giro Guider 4
$149.95as of Jul 8

The Giro Tremor MIPS youth helmet is praised as one of the best kids' bike helmets, with exceptional comfort and a high-quality adjustment system. Reviewers note its lightweight design, excellent ventilation, and optional MIPS safety technology. The helmet is available in youth and child sizes with overlapping sizing ranges, and testers found the child size better suited for smaller heads. While the standard buckle can pinch and side straps may be loose for some, the Tremor is considered a safe and stylish choice for young riders. Parents seeking upgraded features and best-in-class comfort will find it ideal, though those needing more adjustability might look elsewhere.

Strengths
  • — Dial-adjust system has a larger rubber dial for ease of use
  • — Plenty of vents and internal air channels for great ventilation
  • — Internal pads are high-quality technical material
Watch-outs
  • — Standard buckle can pinch, but keeps costs down
  • — For some kids, the fixed side straps are too loose and can cause the helmet to slide back on the head
$149.95 · Check Price on AmazonFull review →
Giro Tremor Mips Child Helmet
Higher ratedRanked #3 in Best Bike Helmets
Giro Tremor Mips Child Helmet
$63.39as of Jul 8

The Giro Tremor MIPS child helmet earns high praise for its exceptional comfort and ease of adjustability, with reviewers noting the large rubber dial system makes fitting easy for both kids and parents. The helmet features excellent ventilation and high-quality internal materials, while its one-piece construction with fused outer shell and foam core increases durability. While some reviewers noted the standard buckle can pinch and the fixed side straps may be loose for certain children, the Tremor remains a top choice for parents seeking a safe, stylish, and comfortable helmet for young riders.

Strengths
  • — Dial-adjust system has a larger rubber dial for ease of use
  • — Plenty of vents and internal air channels for great ventilation
  • — Internal pads are high-quality technical material
Watch-outs
  • — Standard buckle can pinch, but keeps costs down
  • — For some kids, the fixed side straps are too loose and can cause the helmet to slide back on the head
$63.39 · Check Price on AmazonFull review →

How they stack up

Giro Guider 4

The Giro Guider 4 offers a more affordable option than the Giro Tremor MIPS child helmet, but lacks the MIPS safety technology and more advanced dial system. While both helmets prioritize comfort and ventilation, the Tremor MIPS provides better adjustability and safety features for children, making it a better choice for parents.

Giro Tremor Mips Child Helmet

The Giro Tremor MIPS child helmet surpasses the Met Downtown Mips in adjustability and safety with its dial system and MIPS technology, though it's more expensive. Compared to the Giro Guider 4, it offers more child-specific features and better ventilation, but both share concerns about fixed side straps that can slide back.

Specs side-by-side

SpecGiro Guider 4Giro Tremor Mips Child Helmet
Weight306 g (Youth), 255 g (Child)255 g
VentilationPlenty of vents and internal air channelsPlenty of vents
SizeYouth: 50–57 cm, Child: 47–54 cmChild: 47-54 cm
Safety TechnologyMIPS (Youth only)Integrated Multi-Directional Impact Protection System (Mips)
Adjustment SystemDial adjustDial adjust
ConstructionIn-mold with DryCore sweat managementIn-mold
Safety CertificationCE EN 1078CE EN 1078
← See the full ranking of best bike helmets