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It's almost surprising that Giro doesn't equip its Source with a magnetic buckle from Fidlock. Instead, the Americans have opted for a classic buckle - somehow refreshing amongst all the other standardised products. The Giro also appeals in other respects as soon as you unpack it. It has a slim cut and is not too heavy for a trail helmet.
Extensive customisation options
The straps are attached to the inside of the helmet, at least at the back, which means they run closer to the head - good for a tight fit. The headband is easy to adjust in height and has a braid running through the back. Although the typical Giro dial is somewhat small, it is rubberised for a good grip and has a fine grid. Together with the adjustable ear pieces, the helmet can be adjusted to fit the head perfectly.
On the other hand, we would have liked a little more adjustment range and a ratchet for the visor. The ventilation openings are noticeably small, which quickly leads to increased sweat flow in practice.
>> You can find an overview of the 15 bike helmets tested here: 15 MTB helmets tested: how safe these MIPS helmets for trail and enduro are
From the very first time you put it on, the Giro impresses with its perfect fit. The Source sits snugly, comfortably and, thanks to its low weight, almost without wobbling. The strap system can be quickly and perfectly adjusted to the head, even the Y straps under the ears can be adjusted. This is where the Giro Source scores a lot of points.
What we did notice, however: Not every pair of goggles fits past the wide front bridge of the helmet. This can lead to pressure points.
Giro Source Mips in the lab
Unfortunately, the Giro also falls somewhat behind in the lab. In terms of both rotational protection and the residual forces of the linear impact, the American helmet comes in last place. Of course, the Giro still passes the official helmet standard, but compared to the competition, it has to make up some ground.
The picture is similar when it comes to ventilation. The small ventilation openings already suggest this: The Source is rather moderately ventilated and does not allow a great airflow through the helmet.
The values of all tested helmets at a glance
Info & Price - Giro Source Mips
- Price: 149,95 Euro >> available here
- Weight: 348 gram
- Sizes: S 51-55, M 55-59, L 59-63, XL 61-65
- Made inChina
- Colours: 7 colours
- Rotation systemMIPS Evolve Core
- EquipmentAdjustable Y-belts and visor; automatic height adjustment; suitable for pigtails
Measured values
- Residual force on linear impact: 134,0 g
- Risk of concussion: 31 %
Evaluation and conclusion
The Giro has a similar problem to the Bell: it sits compactly and comfortably, can be adjusted cleanly and the small dial runs smoothly and with a fine click. However, it falls a long way back in terms of both shock absorption and rotation protection. The small ventilation slits only allow a little air to reach the head. If you can live with these shortcomings - after all, the Source easily fulfils the required standard - you get a lightweight, inexpensive companion for your trail tours.
Stefan Frey
Editor
