Find Your Store
Home Page

Cart, contains 0 items

When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.
Expert Help
Earn Rewards

MXZ304 Mountain Bike Shoe - Men's

4.5 out of 5 stars
2 Reviews


Size Chart


MXZ304 Mountain Bike Shoe

As a dedicated winter rider who pedals up frozen streams and across snowy singletrack, you know how important it is to have warm footwear that protects your feet from the elements. Lake was one of the first companies to make a dedicated winter cycling boot, and the new MXZ304 is their best one yet. A larger BOA dial is moved to the front of the tongue, making it easier to use with winter gloves and providing a more even tension across the top of your foot. Otherwise the construction remains similar the previous model, consisting of highly weather-resistant Pittards leather that molds to the shape of your foot for optimal comfort, and a heavy-duty Vibram outsole that provides maximum traction both on and off the bike. Plus, they're filled with lightweight Thinsulate insulation, keeping your toes warm when you're out in the snowy woods for hours at a time.


  • Warm cycling boot for fatbiking and winter mountain biking
  • Larger boa dial allows easier adjustment with winter gloves
  • Pittards uppers block the elements and mold to your feet for comfort
  • Durable Vibram outsole finds traction in icy conditions
  • Outlast liner regulates temperature and prevents clammy feet
  • Thinsulate insulation keeps your toes nice and toasty
  • Lake recommends sizing up 1 - 1.5 sizes if using with thick winter socks
  • Winter Plus last, see size chart for fit information
  • Item #LKC002R
Upper Material
Pittards WR100 leather, Helcor abrasion-resistant toe and ankle guard
[lining] Outlast temperature regulating liner, [toe box] 3M Thinsulate lining
BOA dial, hook-and-loop strap
Thermosol composoite insulated insole
fiberglass-injected high-impact nylon
[outsole] heavy-duty Vibram Mountain V
Cleat Compatibility
Claimed Weight
[single, size 39] 1lb 5oz
Manufacturer Warranty
2 years

Overall Rating

4.5 based on 2 ratings

Review Summary

1 Stars - 0 reviews
2 Stars - 0 reviews
3 Stars - 0 reviews
4 Stars - 1 reviews
5 Stars - 1 reviews

Fits Small

Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.
Runs smallTrue to sizeRuns large

What do you think about this product?


Selecting an option will reload the available reviews on the page
5 out of 5 stars

December 5, 2023

Very warm

I've put it through the wringer
Size Bought:
6' 1"

These are great mountain biking boots. Very warm. A must have when you live in New England area and also Chicagoland IL. I have 2 pairs. They do run small so size up. I wear shoe size 10 and got these boots in size 45.

Scott S
4 out of 5 stars

November 17, 2022

Size 48 and size 50

Size Bought:
6' 3"

I normally wear a size 14 shoe, for example in a Merrill Moab 2 Ventillator, where I have plenty of room in the toe box. I also wear a size 48/US 13.75 in a Specialized Recon 2.0, which fit me very well. The Lake MXZ304 in size 48/US 14 is too small for me with a medium weight SmartWool sock. My toes don't hit the front, but the toe box is very tight. It's hard to tell how close my toe is to the front because the toe of the MXZ304 is very stiff, but I can't wiggle my toes and the overall width of the boot feels tight. On the other hand, the Lake MXZ304 in size 50/US 15 feels just about right. My foot slides into the boot with just a little bit of effort and the toe box is roomy enough to wiggle my toes. The overall width of the boot does not feel loose or tight--just right. The boot is much lighter than I thought it would be from looking at it. The uppers are very soft, almost pillow like, and because the upper is so soft, the ankle bends very easily (as in there is no resistance at all), so it seems like you could hike for hours in the boot if you wanted to. I think the sole feels a little narrow, so the boot might not offer great stability when hiking (examine the image of the sole), I am not a fan of the Boa system, so I would prefer laces. My Specialized shoes have two sets of plastic grommets (like eyelets on a laced shoe), and when I tighten the dial it only tightens the wire closest to the dial, so I have to pull on the wire at the front of the shoe to even out the tension. The Lake MXZ304 has one Boa dial for 4 sets of plastic grommets, and I find I have to pull on the wire like a shoe lace to try and tighten the wire near the toe. What would you rather pull on: a thin wire or a soft shoe lace? The Boa system is so bad, I can't believe any product manufacturer uses it. The least Boa could do is include some kind of lace puller with their system. I tried to simulate what it would be like pedaling with cleats by trying to pull the boot off my heel, and there wasn't too much movement. I also tried really cinching down the Boa system to eliminate any slop, but I got some pain around my ankle despite how pillowy soft the uppers are, so there is a limit to how tight I can make the boot fit. I have some Lake MX146's in size 48 and size 50 coming in the mail, and I will compare the two models and decide on which shoe I will keep. The size 50 will definitely work for me, so at least I have one option for winter cycling.

xmtbx x