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Bell 4Forty Air Mips
Model: 4Forty Air Mips, US style 100000000500000111; observed Teal / XL, SKU BL-7204151 · US configuration
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For the trail/CPSC/62 cm assessment scenario, the exact Bell 4Forty Air Mips chart covers 62 cm in both its L and XL/XXL rows. The selected observation is Teal / XL, but the overlapping, combined chart labels are not a fit verdict.
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Assessment scenario: Trail half-shell with CPSC evidence at a 62 cm chart point
An assessment scenario for a trail rider who wants documented US CPSC compliance and has measured 62 cm. Bell lists both L (58–62 cm) and XL/XXL (61–65 cm) for this model at that boundary; this overlap is a chart screen, not a size or fit decision.
Explore this buying guide ↗Why consider this model?
- Bell places the exact style-111 US model in its MTB listing and describes the 4Forty Air Mips for trail riding.
- The model-specific chart includes 62 cm in L (58–62 cm) and XL/XXL (61–65 cm); an inclusive overlap is a reason to try the exact helmet, not to pick a size.
- The exact US page states CPSC compliance for persons age five and older and names Mips Evolve; the Mips label does not establish Spherical/Mips.
Tradeoffs to weigh
- The selected SKU is Teal / XL, while Bell's chart uses the combined XL/XXL label and overlaps adjacent ranges; individual head shape and fit are unknown.
- Bell's 360 g figure is for size M, not the observed XL SKU, and is not an independent measurement.
- The captured page does not list ASTM F1952 downhill certification or independent ventilation, goggle-compatibility or impact results.
Check these before ordering
- Confirm the offer identifies US style 100000000500000111, Teal and the intended XL selection; do not substitute the separate 4Forty Mips style 068.
- Inspect the exact helmet's physical CPSC label, condition, package and included parts; confirm current recall information and return terms.
- Try the exact helmet on using Bell's directions and check level position, retention, straps and eyewear/goggle clearance; chart overlap does not establish comfort or fit.
Manufacturer information
- Bell US MTB directory card for 4Forty Air Mips style 100000000500000111, Teal / XL, SKU BL-7204151
- Bell exact US 4Forty Air Mips style 100000000500000111 page; selected Teal / XL, SKU BL-7204151, with embedded model sizing data
- Bell manufacturer packshot embedded on the exact US Teal style-111 route
- Bell Bicycle Helmet Owner's Manual Part B5000433-F; general bike-helmet guidance, not a model-specific 4Forty Air Mips setup sheet
- Bell US recall page snapshot screened for the 4Forty Air Mips model name on 2026-11-01; not individual-unit clearance
- CPSC Bell Sports bicycle-helmet recall 25-359; affected-model notice screen checked for this model name