Giro Synthe II was available beginning August 6, 2020
I'll reiterate the purpose of these bike helmet reviews as I have done on past posts. My goal in this post is to provide information unavailable in other reviews, particularly around fit as so much of a cyclist's experience is impacted by the fit. Perceptions of overall comfort and helmet sizing will naturally vary. However, ventilation and wind noise will also vary based on the air gap between a cyclist's head and the helmet. If a cyclist fits in on the smaller side of the range in a helmet's circumference range, there is more room for air flow around the head, for example.
The safety and protection of a cyclist is also impacted, no pun intended. The industry emphasizes oblique impacts and angular accelerations during those impacts. And while it's difficult to quantify, it's straightforward to imagine how a looser fitting helmet allows the helmet to pivot on your head easier than a tightly coupled one. In fact MIPS depends on a tight fitting helmet to produce its results as the impact tests are done on a rubberized head form.
Aerodynamics is the final area impacted by fit. If a cyclist is in-between sizes and has to upsize, than the larger frontal surface area creates more drag. Since drag is defined as the drag coefficient multiple by the frontal surface area, the additional effect is predictable and linear. In any circumstance other than a custom fit helmet, there is some additional drag associated with using an off the shelf, injection molded helmet.
What's new in this helmet?
More to come
How's the helmet on the bike?
More to come
How's the helmet fit and sizing?
More to come
What do other reviewers say about this helmet?
The following evaluations are from varied publications that have ridden the Giro Synthe II. To prevent bias, I analyze, summarize, and include the top three Google results for the "Giro Synthe II review," excluding any reviews in which the helmet wasn't ridden and served simply as a repetition of the product press release from the manufacturer. I don't differentiate between the mainstream and cycling media since anyone can ride a bike and provide a good review.
BikeDriven gave a 9 out of 10 for the bike helmet Giro Synthe II and commented: “Giro Synthe II is an excellent, premium all-around road cycling helmet. It is super comfortable to wear, lightweight, stylish, and offers excellent ventilation. In addition, it is well priced and includes good safety features (MIPS).” They listed many advantages and gave a 10/10 for its great Fit, lightweight, comfort, high adjustability, and good ventilation. They also commented how the head is not getting too hot, even on the longest and most difficult rides. The only issue they mentioned was its incompatibility with sunglasses. The Roc Loc® 5 system interacts with the temple points of the cycling glasses and pushes the glasses up. But overall, they claimed it is one of the best options for road and gravel cyclists searching for a comfy, light, stylish, and well-ventilated helmet. The price is also very reasonable.
Road. cc gave a 7 out of 10 for the Giro Synthe II helmet and commented: "The Giro Synthe MIPS II helmet is sturdily safe, good looking, and nicely made, but it's also a little heavy and expensive.” According to their review, the helmet has an excellent overall shape, great safety features, and excellent cooling systems suitable for cold and hot weather. They tested the bike helmet in winter, and it didn’t feel chilly. The cons are its relatively high price and heavyweight as it is comparable to lighter and more affordable bike helmets with MIPS on the market. They also remarked while cycling that the Roc Loc cradle became uncomfortable during the ride. Once more, if your comfort and requirements are not considered, even the best helmet may feel the worst.
CyclingWeekly gave a score of 4.5 out of 5 stars to the bike helmet Giro Synthe MIPS II and wrote, “It's not often that an updated, improved version of helmet is priced lower than the original, but this is the case with the Giro Synthe MIPS II.” They mentioned that this helmet has an updated integrated MIPS and is less expensive than the original design. Although they pointed out that the Synthe II does not use the more advanced Spherical MIPS of the Eclipse, Aether, and Helios, its cheaper pricing reflects this. They also observed how much lighter the original Synthe design was. They also cited some advantages of the helmet: its integrated Roc Loc 5 Air MIPS cradle, comfort and how well it fits, and highly ventilated - the air can flow in easily, and there is no risk of overheating in warm weather. The only flaw in the Giro Synthe II design, in their opinion, is how wide it seems compared to other modern road helmets. This wider appearance might not be suitable for people with narrower heads.
Most of the publications issued relatively positive reviews. They commonly appreciated the bike helmet’s ventilation. However, there are uneven comments and varied feedback around the price (expensive or reasonably priced), the weight (heavy or light), the comfort of the helmet, and its shape. The opinions are slightly subjective since every person has their proper style, head shape, and size. And the limitation of any helmet is finding one that perfectly fits your head.
What are the helmet specifications?
Coming soon.
How's it feel after extended ride testing?
This is a placeholder for future helmet testing of this model.
Is the POC Ventral MIPS the best bike helmet for you?
As I always say, the best bike helmet is the one that fits you. The Best Bike Helmet Finder is a good place to start. Helmets are a very personal decision both for reasons of sizing and fit but also style and performance preferences. You aren't going to ride with it if it's uncomfortable.
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