Is the Giant Rail SX MIPS worth it?

Yes, if you want MIPS and deeper rear coverage without paying premium enduro prices. It is less compelling if you ride cross-country and care most about low weight.

How does it compare with a standard trail helmet?

It sits lower at the back and adds a moto-style visor, so it suits aggressive trail and enduro riding better. A lighter trail helmet will be cooler and less bulky on long climbs.

What head size does size L fit?

Size L fits head circumferences of 59–63 cm. The shape is slightly more oval than round, so try it on if you usually wear round-fit helmets.

Does it work with goggles?

Yes, it is goggle compatible, and the extended visor is designed to work with goggles. The visor is removable if you prefer a lower profile.

How much does it weigh?

It weighs 360 g in size M under CPSC/CE testing. That is on the heavier side for a trail helmet but normal for one with this much coverage.

The helmet with its removable moto-style visor and TransTextura Plus padding. Check the listing for any spare pads or a carry bag.

What do buyers say about the Giant Rail SX MIPS Helmet?

Rated 4.7 out of 5 from 21 ratings.

Giant Rail SX MIPS Helmet

4.7

Last price we saw

$69.95at Motorcycle Closeouts, last seen Nov 1

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Our take on the Giant Rail SX MIPS Helmet

The Giant Rail SX MIPS is an open-face mountain bike helmet with a moto-style look: a removable extended visor, 18 vents and MIPS rotational protection. It uses in-mold construction with a toughened polycarbonate shell and low-density EPS tuned for both low- and high-speed impacts, and the rear coverage sits 8–10mm lower than a standard trail lid. It weighs 360 g in size M and meets CPSC, CE and AS/NZS standards. It comes in M and L, with L fitting 59–63 cm heads.