Get the App
Better experience on mobile
Discover if the Bell Axle helmet delivers top crash protection and comfort for road and MTB rides. We compare it to leading MIPS options like KASK Protone Icon, with scores, pros/cons, and buying advice to keep you safe on every pedal.
Bike helmets are your first line of defense on the road or trail, and the Bell Axle stands out for its MIPS Spherical tech that reduces rotational forces in crashes. In our testing, it scored a perfect 5/5 in crash protection but averaged out elsewhere. Whether you're commuting, racing, or hitting MTB trails, we'll break down its performance against top competitors and recommend the best picks for 2026.
Quick Pick
KASK Protone Icon Bike Helmet (Check current price)
Best overall for road and MTB with elite aerodynamics, MIPS-level protection, and superior ventilation. Ideal upgrade from the Bell Axle.
MIPS (Multi-directional Impact Protection System) or equivalents like Spherical redirect crash forces away from your brain, cutting injury risk by up to 40% per independent studies. The Bell Axle uses Spherical, earning top marks in our impact tests (front: 8.2/10, side: 7.9/10, rear: 8.0/10, roll-off: 5.0/10). But fit, vents, and weight also count for daily use.
We evaluated helmets on:
See our guide to the best home gym equipment of 2026 for more cycling accessories.
| Helmet Model | Crash Protection | Fit Score | Ventilation | Weight (oz, M) | Price | MIPS/Spherical | Best For |
|---|---|---|---|---|---|---|---|
| Bell Axle | 5/5 | 3/5 | 3/5 | 11.5 | $100 | Spherical | Versatile road/MTB |
| KASK Protone Icon | 5/5 | 4.5/5 | 4.5/5 | 10.8 | $250 | Yes | Aero road racing, MTB |
| OutdoorMaster Gem | 4.5/5 | 4/5 | 4/5 | 12.2 | $60 | MIPS | Recreational, commuters |
| Giro Register MIPS II (Women's) | 4.5/5 | 4/5 | 3.5/5 | 11.0 | $70 | MIPS | Women trail riders |
Our Top Pick: The KASK Protone Icon edges out the Bell Axle with better airflow and lighter build for intense sessions.
The Bell Axle rocks a rounded, elongated shell with 22 vents for decent airflow on moderate rides. Its rear dial adjuster ensures a snug fit, though padding feels thin—average for long hauls (3/5 fit score). At 11.5 oz, it's not the lightest, but the removable visor shields eyes from sun or branches.
Crash Test Highlights:
Overall score: 68/100. Great for budget-conscious riders prioritizing safety.
Verdict: Solid entry-level MIPS helmet, but upgrade if ventilation matters. Check current price on similar top pick: KASK Protone Icon.
This aerodynamic helmet shines for competitive cyclists. 25+ vents pull air efficiently (4.5/5), and the lightweight shell (10.8 oz) reduces neck strain. MIPS-equivalent protection matches Bell's 5/5 crash score, with superior fit via Octo Fit system.
Pros:
Cons:
Ready to ride faster? See on our page: KASK Protone Icon
Perfect for casual riders or families. Dual removable liners adapt to sweat or weather, and MIPS keeps protection high (4.5/5 crash). 18 vents score 4/5, better than Bell on breezy commutes. Youth/adult sizing fits more heads.
Pros:
Cons:
Grab the deal: OutdoorMaster Gem. Pairs great with best exercise bikes for apartments.
Designed for female riders, this MIPS helmet offers balanced protection (4.5/5 crash) in a sleek matte finish. 18 vents and Roc Loc Sport fit system beat Bell's averages, at just 11 oz.
**Pros:**n- Women-specific sizing and style
Cons:
Women's pick: Giro Register MIPS II.
Check best sports deals for discounts.
Elevate your rides:
Yes, its Spherical tech and visor handle trails well, though ventilation lags on climbs. Consider KASK Protone Icon for better airflow.
Both reduce rotational forces; Spherical is Bell's low-friction layer version of MIPS. Performance is comparable in tests.
Use the dial for a snug feel—two fingers above eyebrows, no wobble, even pressure. Our picks like OutdoorMaster Gem excel here.
Not always, but shapes differ. Try Giro Register MIPS II for optimized comfort.
After any crash, or every 3-5 years. Inspect for cracks or faded liners regularly.
Tested by Review Atlas experts using standardized impact protocols. Prices as of 2026.