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45NRTHWolvhammer MTN 2-Bolt Cycling Boot - Men's


Item # NRH000H

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  • One Color, 42 ($325.00)
  • One Color, 46 ($325.00)
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Item # NRH000H

Wolvhammer MTN 2-Bolt Cycling Boot

Built for fatbiking in extreme winter conditions, the Wolvhammer MTN Shoe from 45NRTH keeps your feet warm and dry while providing efficient power transfer to your clipless pedals. Inspired by mountaineering boots, the Wolvhammer is designed to provide uncompromising protection from harsh winter elements with its durable construction and fully waterproof membrane. When our customers ask what the best option is for riding in temperatures ranging from 0 to 25-degrees, this boot is the be-all and end-all, seeing that it's designed by real riders that put in serious miles on their fatbikes in the frigid winter weather of 45NRTH's Minnesota headquarters.

The Wolvhammer uppers are constructed from a mix of full-grain leather and ballistic nylon with a fully waterproof membrane as well as 200g of PrimaLoft insulation in the lining. These materials work together to provide an extremely durable barrier that blocks out heavy, wet snow so your feet stay toasty and dry whether you're five minutes or five hours into your ride. 45NRTH gives these shoes a roomy toe box to promote comfort and air flow when used with heavy winter socks, and they also incorporate an Aerogel blanket into the footbed for extra insulation that maintains compatibility with custom insoles without sacrificing warmth. The closure is a Boa dial that provides a wide range of adjustment with an even tension across the foot, with an additional hook-and-loop strap for extra security.

Moving to the bottom of the shoe, the fiberglass-injected nylon sole provides a stiff platform for quick power transfer to the pedals along with a high degree of impact resistance. The outsole is made of grippy rubber lugs that are infused with anti-slip microglass providing unwavering traction for those times when you have to hoof it in icy conditions. Lastly, it's worth mentioning the D-ring on top of the foot that serves as an attachment point for gaiters when navigating deep snow (pairs perfectly with 45NRTH's Bergraven Gaiters).

  • A cycling boot for fatbiking in extreme winter conditions
  • Durable uppers with waterproof membrane ensure your feet stay dry
  • 200g of PrimaLoft insulation keeps warmth in and the cold out
  • Recommended for temps from 0 to 25-degrees Fahrenheit
  • Roomy toe box promotes air flow and works well with winter socks
  • Aerogel footbed adds insulation and works with custom insoles
  • Anti-slip rubber lugs on outsole provide traction on icy surfaces
  • Boa dial & strap provide secure fit with even tension across the foot

Tech Specs
Upper Materialfull-grain leather, ballistic-grade nylon, waterproof membrane
Lining200g PrimaLoft insulation
ClosureBoa, hook-and-loop strap
Midsolefiberglass-injected nylon
Solerubber lugs infused with anti-slip microglass
Cleat Compatibility2-bolt
Manufacturer Warranty2 years


Cycling Footwear
36 5 6 210 - 226 S
37 5.5 6.5 226 - 233
38 6 7 233 - 239
39 7 8 239 - 241
40 7.5 9 241 - 246.5
41 8 9.5 246.5 - 254 M
42 8.5 10 254 - 261
43 9 10.5 261 - 269
44 10 11.5 269 - 275
45 11   275 - 283 L
46 11.5   283 - 289
47 12   289 - 295.5
48 13   295.5 - 301
50 14   301 - 316

What do you think about this product?


>Rating: 4

Finally! Warm Toes!

I've used it several times
True to size
Size Bought
5` 7"
190 lbs

I first bought the Ragnarok boot because it was less expensive. While I enjoy the Ragnarok very much, the toe box is small and it is not insulated. They claim to work down to 25, and that is probably the case without any wind. I managed to use them down below freezing only with an additional neoprene cover. They are small enough up front that I am unable to wear a very thick sock with them. Anything more than a medium weight wool sock, and I ended up with numb toes. With still frozen toes, I bit the bullet and moved up to the Wolvhammer. I ordered a size larger and I am pleased with the result. At first glance, they seemed bulky and unwieldy, but my first ride proved me very wrong. These were super easy to get in and out of. I was able to clip in and out with ease. The best part of all is that starting a ride in 24 degree weather, and a bit of wind, MY TOES WERE WARM! Money well spent. The Ragnarok has it's place from late October until about early December in Maryland. Once it gets into January, it's Wolvhammer weather!

>Rating: 5

Worth the spend

True to size
Size Bought
6` 3"
205 lbs

These are pricey, no doubt. But if you want that solid feel on your pedals and/or you intend to clip in, these are worth it. Very warm, stiff sole, easy on/off. I also run the Dillinger 5 studded tires from 45 NRTH - everything they make seems to be of great quality. Would recommend.


Do you expect to have more sizes in stock soon? (Jan 2020?)