American Stout NX

Regular price $2,350.00 Save $-2,350.00

Only -77 items in stock!



The American Stout is one of the most versatile bikes in our lineup. With massive 27.5”x4.5” tire clearance, there’s not much you could throw in front of this bike that it couldn’t handle. Be it gnarly rock gardens, snowy single track, or a nice cruise down the beach, this bike feels right at home.

Made right here in the US using 100% 7075 aluminum tubing, this bike is built to last. We’re so confident in its performance that we offer a lifetime warranty on all of our frames. Buying domestically yields a number of other benefits. By supporting American made products, you’re supporting local jobs, local businesses, and a more ethical and sustainable manufacturing process.

As with all of the bikes in our lineup, the customization possibilities are pretty much endless. Seriously, we did the math and there’s 46,523,913,960,000,000,000,000 possible combinations. Good thing we have Ben here to keep all those straight!


  1. Designed for 27.5 Fat wheelset - max tire clearance up to 27.5x4.5"
  2. 197 rear thru axle
  3. 7005 Aluminum alloy construction
  4. Custom shaped tubing for strength and weight savings
  5. Internal dropper post routing
  6. Precision beaded welds
  7. English threaded bottom bracket
  8. Lifetime Warranty on the frame - The best in the business


    **Due to limited product availability, standard components are subject to change without notice, though you will be notified before the bike ships.**

    Frame Growler American Stout designed using our proprietary OME technology doubled-butted 7005 aluminum tubing, 197x12mm dropout, Internal dropper cable routing, replaceable derailleur hanger, water bottle bosses
    Fork Growler Carbon Fat Bike Fork 
    Rear Shock N/A
    Sizes S, M, L, XL
    Headset FSA 
    Shifters SRAM NX Eagle 1x12
    Front Derailleur N/A
    Rear Derailleur SRAM NX Eagle 12-Speed, 1x12
    Cassette SRAM Eagle 12-speed
    Crank SRAM NX Eagle Dub, 3mm offset for 148 Boost chainline
    Chainrings SRAM X-sync Eagle 32T Steel
    Bottom Bracket SRAM Dub English Thread
    Chain SRAM Eagle
    Handlebars FSA Aluminum , 18mm rise, 9 degree back seep, 4 degree upsweep, 31.8mm x 740 mm
    Stem FSA Omega 70mm, 31.8mm alloy, 6 degree, 4-bolt bar clamp
    Tape/Grips Lizard Skin Growler Logo
    Saddle SDG Bel-Air 3.0
    Seatpost FSA Aluminum 31.6x400mm
    Pedals Available Separately
    Rims Sunringle Mulefut 80, Tubeless Setup
    Hubs Sunringle SRC 32h, Boost 197x12/150x15TA
    Spokes Wheelsmith Straight Pull DB14
    Tires Maxxis Minion FBF/FBR 27.5x3.8"
    Tubes Who still uses tubes? All bikes are setup tubeless
    Brakes SRAM Guide Hydraulic Brakes 4 Piston
    Brake Levers SRAM Guide Hydraulic Brakes 4 Piston
    Extras ENVE Carbon Wheels available

    Customer Reviews

    Based on 7 reviews
    Loving the new American Stout

    Super happy with the new bike from Growler. All the color and decal options were awesome. Also like the fact that they are made in the USA! So far everything has been great for the first 200 miles!

    American Stout NX

    Great bikes we love riding them

    So far, so good

    This is my first fat bike, and I ordered from Growler because they make an XXL frame and I was able to customize a bike which I received just three weeks later. It’s a little lighter than I thought it would be and it’s really fun to ride on trails. I’m looking forward to riding it in the snow.

    Getting Fat

    Love my new A-Stout. The bike showed up well packaged and intact. I was a bit surprised by the new frame design around the seat stay and chain stays with the new reinforced gussets. I like the new design. I just hadn’t seen it when ordering. The 3.8 maxxis tires are ok. But was looking forward to the 4.5 inch tires. Overall the bike rides and works great. It opened up a lot of new riding for me now being able to navigate through the many sandy dry arroyos of the southwest. I do appreciate the USA build during this COVID weirdness.


    American Stout NX