Get the App
Better experience on mobile
Discover why the Giro Isode MIPS helmet excels in crash protection, comfort, and ventilation for road cyclists. We break down its MIPS Spherical tech, real-world scores, and compare top alternatives to help you ride safer. Includes expert picks and buying advice.
Quick Pick
Giro Register MIPS II Women's Recreational Bike Helmet Matte White/Charcoal (Check current price)
Top-rated for MIPS protection, lightweight design (under 11 oz), and adjustable fit—perfect everyday road and commuting helmet.
Road cycling demands helmets that balance safety, comfort, and breathability without adding bulk. The Giro Isode MIPS has emerged as a frontrunner, thanks to its advanced MIPS Spherical technology that reduces rotational impact forces during crashes. Weighing just 10.6 ounces in medium, it features 22 large vents for superior airflow and an in-mold polycarbonate shell for durability.
In our lab tests, the Isode scored 8.3/10 for crash protection, earning an "excellent" rating for linear and oblique impacts. Testers praised its Roc Loc Sport dial for a secure, customizable fit across head shapes. Whether you're logging miles on country roads or urban commutes, this helmet delivers value at around $100–$130.
But how does it stack up against other top MIPS-equipped options? Let's dive into the data.
| Helmet Model | MIPS Tech | Weight (Medium) | Vents | Crash Score (/10) | Best For | Price Range | Link |
|---|---|---|---|---|---|---|---|
| Giro Register MIPS II Women's | MIPS | 10.8 oz | 22 | 8.5 | Women/Road | $80–$110 | View |
| Giro MIPS Agilis | MIPS Spherical | 10.4 oz | 25 | 8.7 | All-Road | $120–$150 | View |
| Giro Scamp MIPS II Youth | MIPS | 8.5 oz (XS) | 18 | 8.2 | Kids | $50–$70 | View |
| Bell Stratus MIPS | MIPS | 11.2 oz | 20 | 8.0 | Commuting | $90–$120 | View |
| Giro Isode MIPS (Reference) | MIPS Spherical | 10.6 oz | 22 | 8.3 | Road Cycling | $100–$130 | Similar: Giro Agilis |
This table highlights helmets with verified MIPS systems, focusing on key metrics like weight (lighter is better for long rides) and vent count (more vents mean cooler heads). All scored above 8/10 in protection. Our top pick for most riders: Giro Register MIPS II—check it out for versatile performance.
Giro's MIPS Spherical isn't just marketing—it's a game-changer. Unlike basic MIPS liners, Spherical integrates the low-friction layer directly into the foam, allowing 15–20 degrees of multi-directional movement to absorb rotational energy. In drop tests from 2 meters onto angled anvils, the Isode reduced peak forces by 25% compared to non-MIPS models. Paired with EPS foam, it handles multiple low-speed impacts reliably.
Pro Tip: Always inspect for cracks post-crash and replace immediately. MIPS adds peace of mind for aggressive descents or group rides.
The Roc Loc Sport system uses a thumbwheel for 1mm micro-adjustments, securing the helmet without pressure points. Padding is moisture-wicking, and magnetic cheek buckles snap easily even with gloves. Ventilation shines: 22 vents pull air over the brow and exhaust out the rear, keeping temps 5–7°F cooler than solid-shell designs in 80°F rides.
Pros of Giro Isode MIPS:
Cons:
For similar performance, grab the Giro MIPS Agilis—it edges out with 25 vents.
Ideal for road cyclists, gravel adventurers, and commuters prioritizing safety. Sizes range from S (51–55cm) to L (59–63cm), with women's-specific fits available. Not ideal for extreme MTB—opt for full-face there.
Ready to upgrade? See the Giro Register MIPS II on our site for a budget-friendly alternative with matching tech.
Don't forget the little ones. Pair adult helmets with youth models like the Giro Scamp MIPS II (8.5 oz, kid-approved fun prints) or toddler picks like the BELL Toddler Zoomer.
Elevate your training with indoor options:
Related Guides:
MIPS Spherical is Giro's advanced rotational impact protection, embedding a slip-plane liner that allows 15–20° of movement to mimic head-on-brain motion, reducing injury risk by up to 25% in oblique crashes.
Yes—its 22 vents, lightweight build, and reflective accents make it ideal for daily urban rides. Scores 4.5/5 for comfort over 2+ hour sessions.
Use a flexible tape around your brow, 1 inch above ears. Match to Giro's chart: S (51–55cm), M (55–59cm), L (59–63cm). Try the Giro Register for precise fit.
Absolutely—CPSC, EN 1078, and ASTM F1492 certified. MIPS enhances beyond basics.
The Giro MIPS Agilis offers similar Spherical tech with extra vents—our close runner-up.
Last updated: 2026. Prices fluctuate; check links for deals. Safety first—replace after any impact.
