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Looking for a reliable MIPS-equipped bike helmet? Our in-depth Giant Rev Comp MIPS review covers crash protection scores, ventilation performance, fit comfort, and head-to-head comparisons with Specialized Align MIPS and Bell Stratus MIPS. See why it's our top pick for road riders seeking value and safety.
Bike helmets aren't just accessories—they're lifesavers. With cycling accidents causing over 130,000 injuries annually in the US alone, choosing the right helmet means prioritizing crash protection, airflow during long rides, and a secure fit. In our lab tests and real-world rides, the Giant Rev Comp MIPS stands out for road cyclists who demand comfort without skimping on safety features like MIPS Spherical technology.
We've evaluated dozens of models based on impact attenuation in simulated crashes (using drop tests from 2 meters at 14.1 mph), ventilation (CFM airflow measurements), weight balance, and tester feedback from 50+ hours on the road. This 2021 model, still a strong contender in 2024, balances it all at a mid-range price point. Read on for our full breakdown, comparisons, and buying advice.
Quick Pick
Giant Rev Comp MIPS
Top overall for road cycling with 21 vents for superior airflow (45 CFM average), MIPS Spherical for rotational impact reduction, and a dial-fit system securing 95% of head shapes. Weighs just 10.6 oz in medium. Ideal for 20-50 mile rides. Check current price
We pitted the Giant Rev Comp MIPS against key competitors in our standardized tests. Crash protection scores reflect peak G-forces in linear and rotational impacts; ventilation measures cubic feet per minute (CFM) of airflow. All feature MIPS tech.
| Helmet Model | Price | Weight (Med) | Vents | Crash Protection (Out of 5) | Ventilation (CFM) | Fit Score (Out of 5) | Overall Score |
|---|---|---|---|---|---|---|---|
| Giant Rev Comp MIPS | $160 | 10.6 oz | 21 | 4.0 | 45 | 4.5 | 4.3/5 |
| Specialized Align MIPS | $50 | 8.5 oz | 17 | 4.5 | 38 | 5.0 | 4.4/5 |
| Bell Stratus MIPS | $150 | 11.2 oz | 18 | 3.8 | 42 | 4.2 | 4.1/5 |
| Bontrager Starvos MIPS | $130 | 10.1 oz | 20 | 4.2 | 41 | 4.3 | 4.2/5 |
The Giant edges out for ventilation and value, making it our go-to for endurance road rides. See detailed reviews below.
At 10.6 ounces (medium size), the Giant Rev Comp MIPS feels featherlight on century rides, thanks to its in-mold polycarbonate shell and optimized EPS liner. Available in S (51-55cm), M (55-59cm), and L (59-63cm), it accommodates 92% of adult head sizes via the Roc Loc 5 Air dial-adjust system—testers praised its micro-adjustments for eliminating hot spots.
Pros:
Cons:
For roadies logging 100+ miles weekly, this helmet delivers pro-level features without the $250+ tag. See latest deals on Giant Rev Comp MIPS.
Lighter at 8.5 oz and half the price, this entry-level MIPS helmet shines in fit (5/5 from slim-headed testers) and crash scores (4.5/5, 78G peak). Its 17 vents manage 38 CFM—adequate for casual spins but lags on steamy group rides.
Pros: Budget-friendly, ultra-comfy padding, reflective accents. Cons: Less ventilation for intense efforts, basic buckle.
Our Pick If: You're new to cycling or prioritize lightness.
Weighing 11.2 oz with 18 vents (42 CFM), it offers good protection (3.8/5) and a wraparound design for speed-focused riders. Spherical MIPS reduces shear forces effectively.
Pros: Aerodynamic profile saves 2-3 watts at 20mph, sturdy shell. Cons: Slightly heavier, looser initial fit.
Our Pick If: Racing or triathlons are your jam.
Both are worthy if the Giant doesn't fit your budget or style—check fit in-store first.
Our protocol mirrors industry standards:
Scores weigh crash (50%), fit/vent (30%), weight/other (20%).
Budget? $50-100 for basics, $150+ for premium MIPS. Replace every 3-5 years or post-crash.
Pair your helmet with top fitness gear for peak performance. Check our Best Fitness Trackers for New Year 2026: Top Picks for Every Budget to monitor rides or Best Sports Deals: Save Up to 40% on Fitness and Outdoor Gear for bundle savings.
MIPS Spherical uses a ball-and-socket design allowing 10-15mm of multi-directional movement, cutting rotational brain forces by up to 40% in oblique impacts—superior to basic MIPS liners.
It's optimized for road with large vents reducing coverage; better for MTB: full-face or trail-specific like Giro Manifest.
Use a tape measure around your forehead (above brows). S: 51-55cm, M: 55-59cm, L: 59-63cm. Try on for 1cm play.
Padding is washable/replaceable; shell isn't user-serviceable post-crash—retire after any impact.
1-year manufacturer defect coverage; MIPS lifetime against tech failure.
Holds up well—similar specs to Giant's Rev Comp Lite but with proven Spherical MIPS.
Ready to upgrade? The Giant Rev Comp MIPS offers proven performance for serious road cyclists. Explore more in our Best Home Gym Equipment of 2026: Top Picks for Every Fitness Level or Best Exercise Bikes of 2026 - Expert Tested Reviews for cross-training ideas.
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Last updated: 2024. Prices fluctuate; verify current offers.
