Multi-Density, Bread-Based Mega Norris Tire Inserts - Eurobike 2019

Sep 5, 2019
by Mike Levy  
Eurobike 2019

We might have to stop making pool noodle jokes if these tire inserts keep evolving. Finnish brand Huck Norris was one of the first options on the market a bunch of years ago, and they've since offered a few versions of their original closed-cell insert to suit different needs. For 2020, they have the Mega Norris that will be available in three versions, each with a different density foam layup that offers different levels of protection and weight, and with a different bread-based name. Yes, bread.

The trail bike insert, called Toast, looks kinda like their original version but with a new shape that's said to make installation easier. Cutouts down the middle save weight and allow it to conform to the rim better, but the new version is a touch heavier at 130-grams, or around 50-grams more depending on the size. However, that penalty comes with more protection, I was told.

They're still cut-to-fit as well, so any Mega Norris can do both 27.5'' and 29'' diameter wheels. What about the name? The rigidity of the closed-cell foam feels a lot like toast, although it'd probably require a lot of jam to make it taste decent.
Eurobike 2019
Three options to suit trail, enduro, and downhill use, each with differing levels of protection.

Things get more interesting when we get to their new enduro-style insert, the Sandwich, that includes burlier rim protection. For this, they've combined two different densities of closed-cell foam: There's the familiar, grey coloured Toast layer that faces out towards the tire, but the darker foam that rests on top of your rim is much, much firmer feeling. Think of this as a shield of sorts that's intended to keep pointy rocks from cracking your carbon rim, or terminally denting your aluminum rim. Weight is 200-grams per insert, and I guess the Finnish prefer open-face sandwiches.

Eurobike 2019
While not as tasty as an actual hamburger, this will probably do a better job of protecting your rim and damping impacts.

And now we get to the downhill insert, otherwise known as the Hamburger. Just like the other two, cutouts in the middle save some grams, and the new shape is said to make installation relatively easy. At 250-grams, it uses the stiffer foam on the top and bottom while keeping the standard foam in the middle. You know, like a hamburger patty. Don't eat your tire inserts, please.


  • 38 0
 No baguette option?
  • 16 0
 Problem is it hardens up after a day or 2
  • 9 0
 Sorry but in Germany so, if anything, we're talking about pretzels
  • 2 0
 @vinay: Pretty sure that's why @jpshore said it.
  • 27 1
 Please please please leave more material at the ends where the Velcro goes on these! Love the product, but it's super annoying to have the Velcro tear away from one end which leaves it sloshing/moving around in the tire.
  • 4 0
 Meant to upvote, had this happen to me
  • 5 0
 Ditch the velcro. Use electrical tape. Works much better
  • 3 1
 Tiny zip tie
  • 11 0
 @sampolicky: it's not that the velcro lets go, the foam breaks
  • 1 0
 @akermanmc: Funny. It was the velcro failing for me. It got soaked with sealent then stopped sticking together.
  • 2 0
 @sampolicky: Gotcha, now that you mention it, i think i've replaced the velcro every time i've had the tires off, but right now i'm running (rather shredded) front and rear inserts and neither of them are connected at the ends because the foam has torn where the velcro went through. I'd be interested to try the more robust ones, maybe with electrical tape if it holds up better
  • 1 0
 Same thing happened to me :/ . Emailed them several times about it with no response. Now it makes a sloshing sound every time I stop spinning the wheel lol.
  • 3 0
 try Cushcore
  • 1 0
 Had this happen on every one of my hucks, but you can just shorten them to the next bridge which is thicker
  • 28 0
 No donut insert tho Frown
  • 17 0
 That's called an inner tube!
  • 17 1
 and lo the lord said 'take this bread, this is my tire insert, eat them and you shall no more suffer flats' Then he did a wicked backflip and buggered off.
  • 13 0
 Might as well Cush Core at those weights. Protection is cool, but sidewall support and tire dampening is better.
  • 9 0
 I still feel like Cushcore does more for you overall.
  • 7 0
 Is it gluten free?
  • 5 2
 I bought a set of the original Huck Norris inserts about 2 years ago. They lasted about one ride before they broke apart inside the tire. Biggest waste of money I've ever spent on a bike part. Never again. Save your money
  • 3 0
 Had these and when you install it the Velcro breaks the hucknorris when I had a puncture with these in my wheels it was broken and so to me was faulty now I use rimpact and these are legit good
  • 2 0
  • 1 0
 Yessssss lol @rideonjon:
  • 2 1
 Huck Norris allowed me to complete the Megavalanche with about 15psi in my rear tyre from the start line - came second, all thanks to Huck Norris. Didn't make it easier to climb that famous hill with a near flat tyre though. They're probably working in a system for that. Huck Norris for president I say!
  • 2 0
 hopefully that secondary foam layer will help prevent the ease at which the HN would get sliced by the rim. 120g more than the original is a bit of a hefty increase though.
  • 7 5
 Bread based?! I can take carbon fibre paticles in my seafood but I won't take gluten! It makes me produce extra greenhouse gases
  • 4 0
 ok but a Rimpact is 100g.....
  • 1 0
 @mikelevy keep in mind air volume, which plays an important role in sealing a hole without going flat, The less volume the insert has the more air volume you keep, which can come in handy. I doubt its all about grams.
  • 3 0
 How about a taco version for bent wheels?
  • 1 0
 Annnnnnnd now the Huck Norris DH version weighs nearly as much as a cushcore but offers no sidewall support. Ya done messed up A-Aron!
  • 3 0
 Chuck should be proud!
  • 3 0
 When Chuck rides, the ground bends to him.
  • 2 0
 If you eat so many burgers these won't save you!!
  • 2 0
 These look like they will consume a half a quart of sealant each!
  • 1 0
 It's gonna be a very soggy sandwich or hamburger.
  • 2 0
 Wheres the ketchup, mayo and mustard sealants?!
  • 2 0
 Bagel surely
  • 1 0
 Il stick with trusty pool noodles
  • 1 0
 I'm going to stick with my wish sandwich for now, less carbs!
  • 1 0
 why would anyone buy anything other then cushcore
  • 2 4
 Aren't all these inserts just crutches for using smaller volume tires than the tire pressure you want to run allows? I'm sort of struggling with this.
  • 4 0
 Tyre pressure is set for the bike to handle well, support riders weight & grip in corners. Not to survive impacts from small hard edged objects.
  • 3 1
 @zyoungson: We've all had to pick tire pressures based on our riding for ages. The common thing is that if you're getting pinch flats, you need more air. You can get more air by more pressure in the same tire, or a larger volume tire. I prefer the larger volume tire approach.
  • 2 2
I don't need or want a heavier larger more draggy volume tire. And I definitely don't want to up the presure for less grip and comfort.
Plus inserts act like volume spacers in air suspension. They cause the presure to ramp quicker on hits and g outs so help resist rim dings and support the tire shape without making them to hard.

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