Fall doesn't last long. You get maybe six good weekends (if you're lucky), to enjoy the cooler temps and incredible colors. You gotta make those weekends count, and ride the last good dirt before the snow shows up and your bike goes into garage hibernation.

None of those weekends come back. And nothing steals one faster than a flat tire mid trail.

If you're out on a Bakcou, a QuietKat, or a Rambo this year

You already run your tires soft, soft enough to leave a thumbprint if you press on the tread. That's the whole strategy, because soft tires grip loose dirt and rock way better than firm ones do. Soft also means every root, rock, and any other trial surprises get more time pressed into your tire. 

For those in the midwest or east, cut corn stubble gets called "a field of rebar" by the people who build tires for farm equipment, and a stalk that can put a hole in a combine tire doesn’t even flinch at your ebike tire. And the day you finally connect on the buck you've been chasing all week is the day you don't want a flat to strike.

That's what Tannus Armour is built for. A strip of foam that lives between your fat tire and tube so the sharp stuff doesn’t even reach the tube. 15mm thick on top, 2mm wrapped around the sidewall, sized for 20, 24, and 26 inch tires so it fits what you're already riding. It won't make you invincible, nothing does on a tire that big, but does protect you from most of the dangers your tire encounters.

Same deal if you're chasing color 

You're already picking out your roads and trails, watching the ridge line waiting for the color to peak. The closer you get to peak color, the farther you tend to wander from cell service and anyone who could actually help you.

Nobody's photo caption has ever read "and then I sat on the side of the trail for 3 hours waiting for help." Focus on enjoying the colors, getting your photos, and getting home safe and sound. 

Trail riders are racing the same clock, just for different reasons

If you're still squeezing dry laps in before the trails turn to mud and then ice, you are probably pushing for more rides, but for a different reason. You are there to close out the mountain bike season with the last laps you can get. You're likely running tubeless, which means sealant's already doing some of the work, but a hard enough hit still ends a ride. Tannus Tubeless Inserts add a layer of rim and casing protection on top of your sealant, so a rock strike that would've put you on the side of the trail just doesn't. Different product, same idea…don't let the last good ride of the year end early over something preventable.

A word to the wise, and it's not about tires

Tell somebody where you're going and when you plan to be back. It's the oldest piece of backcountry advice there is, and it's still the best one. A phone helps until you lose signal, which you will, so always have a back up plan.

A temperature drop of 30 to 40 degrees in an hour isn't rare once you're up in elevation, and you don't need snow on the ground for that to turn dangerous. Hypothermia isn’t just for freezing temps either, it catches people just as easily on a cool, wet, windy afternoon as it does in the dead of winter, mostly because nobody dressed for it. Layers beat one heavy jacket. Something against your skin that wicks sweat, something warm in the middle, something wind and waterproof on top. Skip the cotton, wet cotton pulls heat out of you instead of keeping it in.

If you're out on public land during hunting season, wear blaze orange even if you're not the one hunting. Most states either require it or strongly recommend it, for the simple reason that hunters are trained to look for that color. Worth adding to your fall attire! 

One more thing if you're on an ebike, know your real range before you commit to that far ridge. A flat tire is rough, but so is a dead battery on a heavy ebike…do you really want to try pedaling that back up that hill you just descended?

However you're spending this fall

Hunting, chasing color, or squeezing out one more good trail day before the snow, that's totally up to you and your preferences. The tire staying full is on us. Grab Tannus Armour before the season gets away from you.

Quick answers before you order

Will this fit my hunting ebike?

Tannus Armour comes in 20, 24, and 26 inch sizes for tires in the 4.0 to 4.8 inch range, which covers most fat tire hunting ebikes on the market, Bakcou, QuietKat, and Rambo included. Check your tire's sidewall for the exact size before you order. It's stamped right there.

Can I still ride on a flat with Armour installed?

On standard tire sizes, yes, that's part of the design. On the fat sizes specifically, no. We are upfront about that exclusion on the spec sheet. What you get on fat sizes is serious puncture resistance, not run-flat capability. Worth knowing so you're not caught off guard three miles from the truck.

Does this work with my tubeless setup?

No. Armour is built for tube setups, which is what most hunting and fat tire ebikes run stock. If you're tubeless, and that's more common on trail and gravel bikes, that's what Tannus Tubeless Inserts are for. 

What tire pressure should I actually run?

Most riders land somewhere between 8 and 15 psi on a 4 to 4.8 inch tire, lower for soft ground and traction, higher if you're carrying serious weight and want to protect the rim. Your exact number depends on your weight, your load, and how much you like walking. Armour gives you more room to run the lower end of that range without paying for it in flats.

Does this add a lot of weight to my bike?

A little. On a fat tire ebike, you won't notice it once the motor's doing the work. It's more weight in your hands loading the bike onto a rack than it ever is on the trail, and when we say weight, it's less than pound, so you probably won't even notice it when lifting the bike onto the rack anyway. 

Will this stop every flat?

No, and anyone who tells you it will is lying to you. What it does is handle the vast majority of what ends rides from goatheads, glass, sharp rock, stubble, and the stuff you roll over without ever seeing it. The rare exception is still out there, the odds are just way better. Like vast majority of users haven't had flats, type of odds. 


Additional Posts...

  • America's Worst Cities for Bike Flats, Ranked

    America's Worst Cities for Bike Flats, Ranked

    Every cyclist swears their city is the worst for bike flat tires. We checked. Using current state noxious weed registries, city task force records, and PeopleForBikes' 2026 City Ratings, we ranked America's 10 worst and 10 best cities for bike flats, and the answer isn't just "wherever it's dry." Denver runs two street sweepers for its entire bike lane network. Salt Lake City pays a bounty on the goathead thorns wrecking tires along the Jordan River Trail. Meanwhile, some of the most celebrated bike-friendly cities in the country, Fort Collins, Davis, Provo, sit smack in the middle of goathead's mapped range, proof that great infrastructure and flat-proof riding are two different problems.

    See where your city lands, what's actually causing your flats (goatheads, glass, or both), and why the fix isn't a better bike lane. It's the right tire for where you actually ride.

  • Sealant Has One Job. You're Making It Do Five.

    Sealant Has One Job. You're Making It Do Five.

    Tubeless sealant seals small punctures up to about 5-6mm, and checking it every 2 to 4 months keeps it working, that's the entire job it was built for. It won't stop a rim strike, cushion a pinch flat, or keep your tire from squirming at low PSI, three failure points that have nothing to do with a hole in the tread. This post breaks down exactly what sealant can and can't do, how goathead thorn country changes your maintenance schedule, and why pairing sealant with a tubeless tire insert covers the gaps sealant was never designed to close.

    Tannus Tubeless Inserts use hydrophobic Aither 1.1 foam that doesn't absorb sealant, so you get rim protection, pinch-flat resistance, and confidence at lower pressures without adding maintenance or wheel weight. It's the same setup racers run at events like Leadville and the Unbound Gravel Grand Prix: sealant handles the punctures, the insert handles everything else.

  • Armour, Tubeless, or Airless: Which Tannus Belongs in Your Wheels?

    Armour, Tubeless, or Airless: Which Tannus Belongs in Your Wheels?

    Nobody's ever finished a ride bragging about the flat they fixed on the shoulder. Tannus makes three flat protection products that stop that from happening, and yes, all three share the same name, which is exactly why riders mix them up. Tannus Armour is a 15mm foam insert built for tube setups. Tannus Tubeless Inserts protect rims and back up sealant on tubeless setups. Tannus Airless skips air completely with a solid foam tire built for commuters. Pick the one that matches what's already inside your tire and ride on.

    This guide lines up all three side by side, including who each one is actually built for: e-bike riders and commuters running tubes, gravel and mountain bikers protecting their rims, and city riders ready to retire air pressure for good. Read it once and you'll know exactly which Tannus belongs in your wheels, in about the time it takes to fix a flat.

  • A kid rides a bike at night, with fireworks in the background of the image.

    Why July Is the Worst Month for Flats (Nobody Tells You This)

    July doesn't have one cause behind its flat tires. It has four, all stacking up at once: softer asphalt that holds onto debris, tube pressure that climbs as the pavement heats up, and more broken glass and goatheads left behind after holiday weekends. That's the real reason bike tires go flat more in summer than any other season, and most riders only ever hear about one piece of it.

    This breaks down exactly what's happening to your tires this month, then shows what actually stops it. Tannus Armour is a foam liner that blocks debris before it ever reaches your tube, and Tannus Airless tires remove the tube and the air pressure altogether, so there's nothing left for the heat to work against.