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The Fox Mainframe MIPS helmet is a fairly priced, eye-catching mountain bike helmet that includes MIPS technology, optimized venting and extended impact coverage all while still being under $100 USD. In this Fox Mainframe MIPS review we’ll get into the fit and form of the budget-priced helmet from one of the most recognizable names in the cycling industry.
The Mainframe has fast become one of the Electric Bike Report team’s go-to helmets for e-bike reviewing, and in total we’ve racked up close to 150 miles wearing the Mainframe. Thankfully, we haven’t had to put its impact protection to the test (yet), but it’s arguably one of the most affordable MIPS-equipped lids on the market.
At less than $100, the Fox Mainframe is one of the cheapest MIPS-equipped lids on the market.
Fox Mainframe MIPS Helmet Review: Features and Overview
The Mainframe’s half shell design combined with a large range of adjustment makes for a very comfortable helmet, I myself have a larger-than-average noggin that doesn’t exactly mesh well with some helmets shapes and designs. The Mainframe was not one of these helmets, its lightweight design mixed with its comfortable positioning helped me forget it was on my head.
It seems to walk the fine line of being lightweight while still feeling strong enough to be protective come the time of a crash. The Fox Mainframe also comes with a moisture wicking liner, which is removable and machine washable. For how hot it gets here in Southern Utah I definitely saw this, and the optimized ventilation as a huge plus to this helmet. I’m able to sweat a lot in this thing, but I am also able to clean it so I don’t have to deal with a stinky helmet come next ride.
It’s a venty helmet, which is nice for hot days.
At just 420 grams for the large and 390 grams for the medium the Mainframe is light for a budget-friendly helmet.
Fox uses a very cool strap system that neatly organizes the chin strap around your ears.
I’ve been wearing the large Tortoise/Bronze Mainframe, which weighs 420 grams and fits head sizes between 59-63 cm. Despite being the same size as my trusty Oakley DRT5, it’s nearly 60 grams lighter, and I definitely noticed when switching between the two. I noticed this mainly in the way my neck felt after a longer ride, and it makes sense. The less my neck had to strain/support additional weight the better it felt. The Mainframe also comes in a vibrant “FLO RED” colorway.
The MIPS liner on the inside of the helmet isn’t marked all over with the MIPS logo like we see on more pricey helmets, but all that matters is it works in a crash.
The Mainframe uses a standard buckle for the chin strap.
The fixed visor is our only gripe, though it’s set at an angle that blocks sun but not your vision.
One thing I would like to see on future models is an adjustable visor. The fixed visor isn’t bad, however sometimes I found myself wishing I could adjust it relative to where the sun was in the sky. We understand Fox strived to keep the Mainframe below $100 so it’s understandable why some features like the adjustable visor aren’t included, but it’s one of the few gripes we’ve got.
Those wanting a helmet that is protective enough for any trail ride, who also want a helmet light enough that even the biggest weight weenie could justify wearing will likely find a lot of value in the Mainframe, especially when its $89.95 price point is taken into consideration. The Mainframe’s benefits and price point make it a great half shell trail helmet for anybody with a head.
Thanks for reading our up-close look at the Fox Mainframe MIPS helmet review. xhat are your thoughts aor questions about the helmet? Let us know in the comments below!
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