5 MIPS Mountain Bike Helmets, Tested – Which is the best?

Lazer Oasiz MIPS Mountain Bike Helmet, $160

Lazer

The Oasiz is the top-tier mountain bike helmet offering from Lazer, with perhaps the exception of their new Revolution model designed for more aggressive riding. The Oasiz, with its more XC-inspired design, has been around for a few seasons and recently received the optional upgrade with a MIPS liner.

Pulling the Oasiz from the box, it is hard not to take note of its edgy and angular form. The front is not unlike many helmets, but the back doesn’t have a single curved edge, giving it a striking appearance. Aesthetics aside, there is much to like about the Oasiz, namely the refined fit and excellent ventilation. At 395 grams, this is one of the heavier helmets in the mix, but that extra weight is not noticeable. With 21 large vents, it was also a top performer when the mercury pushed north of 80ºF.

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Like all of Lazer’s upper echelon helmets, the Oasiz employs the brand’s unique Rollsys fit system, with the adjustment knob located at the top of the helmet. It seems like a curious location to put a dial, but it places the retention mechanism out of the way and it’s easily tuned on the fly. The crest of the helmet includes a hard mount for a GoPro or one of Lazer’s clever accessory lights, a feature we’re seeing on an increasing number of helmets. Not to belabor my issue with visors, the Oasiz has a stout sunshield mounted at multiple points on the outer shell.

As I have noticed with other Lazer helmets, the depth of the fit seems somewhat shallow, but I don’t sense that I’m sacrificing coverage or stability. Those who don’t like the feel of a deep helmet will like the fit of the Oasiz. Rear protection is good without feeling clunky or compromising ventilation. The fit is snug and doesn’t bobble around when bouncing through choppy trail. One of my favorite features of the helmet is the magnetic Magic Buckle on the chin strap, which eliminates the fiddling that comes with a traditional fasteners.

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Lazer Oasiz MIPS MTB Helmet White Large
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Pros:

  • Rollsys adjustment is a nice touch
  • Excellent ventilation
  • Good value
  • Excellent quality of materials and construction

Cons:

  • A little on the heavy side
  • Aesthetics are hit or miss for some users
  • Felt slightly out of balance with the weight positioned at the back of the helmet.

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