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Banger is the first real anti-flat system for your bike.
An easy-to-assemble, lightweight and customizable system for your MTB & eBike
Banger is the first real anti-flat system for your bike.
An easy-to-assemble, lightweight and customizable system for your MTB & eBike
Banger is the first real anti-flat system for your bike. An easy-to-assemble, lightweight and customizable system for your MTB & eBike
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268 backers pledged €60,076 to help bring this project to life.

About this project

Anti-flat system for MTB & eBike | Banger by MrWolf project video thumbnail
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Anti-flat system for MTB & eBike | Banger by MrWolf

€60,076

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Banger is a system which uses a very low density technopolymer designed and developed specifically for the MTB sector. It can be inserted into any tire and is easy and fast to assemble (10 seconds) on any type of tubeless-ready rim available on the market. Banger reduces the volume of air inside the tire by 95%, taking the wheel set to a 2.0 level. 

Shocks are absorbed, vibrations are reduced and feeling and stability increase markedly. Once you’ve added Banger just a few meters are enough to discover totally new features of your bike. Thanks to Banger’s super-light techno compound and its elasticity it guarantees smooth sensations, speed and safety. Banger also provides incredibly efficient "flat prevention", reducing the risk of punctures or cuts to your tire by 90%.

 

 


Banger represents a new suspension for your bike. The first sensation of using it when riding is an incredibly smooth and controlled feeling of the wheel set. Right from the smallest obstacles impact energy is absorbed by the elastomeric compound ensuring sensational grip and control. The air that is normally used in the Tubeless system or in systems available so far has a naturally elastic behaviour. With air systems a large impact in compression will give an explosion/elastic rebound in an equal and opposite direction. On the contrary, Banger provides a shock-absorbing effect which will notably increase your performance and your confidence. Your bike suspension is already able to damp impacts with low frequency and large amplitudes, but can never guarantee such high sensitivity on rugged terrains with small and frequent unevenness. Banger, which is directly in contact with the ground together with the tire, adapts itself and absorbs all bumpiness quickly, thus ensuring unprecedented buoyancy and a smooth ride. 

 In fact, you would be wrong to think that Banger worsens bike rolling resistance. Tests performed by WheelEnergy Oy, the most important independent laboratory in the world for bicycle tire testing, clearly demonstrate that the wheel set maintains its rolling resistance characteristics in offroad use. 

The vast majority of the laboratory tests carried out show that in comparison to a tubeless system Banger loses only 1% (0,7 Watt) in rolling resistance performance, but offers: 

  • puncture prevention 
  • shock absorption
  • anti-burping
  • an exponential increase in traction
  • increased performance and comfort

This means a wheel set which is still fast, just like with air systems, but can guarantee new riding sensations and an absolutely exceptional grip. 

 

 
"[...] There is a marked difference in the feel of the bike. During the initial rides, the bike seemed to track the ground better, the tires felt calmer in the really rough stuff and it was easier to hold a line and to track corners. Even though it added damping, and I was running less pressure, it also gave the feeling of more support, making the bike more playful and giving extra pop. [...]"
PinkBike (read full article)

"[…] Clearly there is limit for everything, and in any case you have to be able to drive, but with this system the limit is much higher and who knows how to drive can be a little faster with fewer concerns. And it's not just a stupid thing. […]"
MTBcult (read full article)

"[…] I ask to deflate the tires at 0 bar to simulate the cut of the tyre with the loss of all the air. Ok I start again to deal with some sidewalk and force some tight curve, the tyre does not barp and the rim remains protected, of course, if we were in this situation MrWolf will allow us to come home or end the trail safely. […]"
Mtb-Mag (read full article)

"[…] The test site is full of worked corners and jumping, and in the strongest compression, the tyre remains really stable. This was the feeling that impressed me more getting into a bank with a pressure close to 1 bar and not feel the tyre shredding, but having a sustained structure that then helps you get out fast and not to sit down during the exit. I have another nice feeling. With little and very close impacts. […] pedaling on small impacts the tyre absorbs but remains very sustained and it looks like accelerate. The 5% of the air initially absorbs for 1 bar (giving a pleasant comfort) but then returns Immediately a push due to its compression within the structure. […] "
365 MountainBike Magazine (Print Magazine)

 

With Banger you needn’t be afraid of using lighter rims and tires. In fact, Banger not only protects the rim, but also ensures the stability and precision that only a multi-layer casing can provide. So, Banger can not only guarantee improved rolling resistance and buoyancy, but could also help you to save weight! Change your perspectives, leave your worries behind you and enjoy your mountain bike lines with peace of mind. 

 

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Banger is fully customizable thanks to its compatibility with tubeless systems. This means you can customize the response of your wheel set thanks to the presence of about 5% air according to track conditions and your riding style. A versatile system, suitable for any type of tire and rim shape. A system that won’t leave you standing even if 5% of the air is missing. An absolute guarantee for races as well as for trips with friends.
Moreover, by reducing the volume of air by 95%, its response will be incredibly progressive and will guarantee reactivity when restarting and changing direction.


Banger works in harmony with your tire controlling its deformation and improving its response on any terrain both in compression and rebound. Our techno-compound is able to absorb and dissipate shock, concretely and considerably reducing the amount of vibration transmitted to the rider. 
Tests show that, when compared with traditional air systems, Banger can:

  • reduce the force of vertical impacts by up to 75% 
  • reduce lateral vibrations by up to 83% 
  • reduce longitudinal vibrations by up to 67% 

Banger also drastically reduces the risk of damage to rims. Our polymer, in fact, always ensures significant support inside the tire even during the most violent impacts. Thanks to Banger it is impossible to hit the rim against a rock or cut the tire casing by pinching it against the rim.


Banger appreciably increases support and road holding during cornering even during violent compressions and changes of direction. With traditional air (or dual chamber) systems lower tire pressure can increase comfort, but has a very negative effect on the support that the tire casing provides to the rider, especially on bends and during compressions. Banger, which substitutes 95% of the air, is able to provide support to the tire casing even with extremely low pressures. This means that the control and stability of the bike are excellent when riding straight as well as cornering even with extremely light tires and single-ply sidewalls. In addition, its support and the volume it provides inside the tire result in an almost complete anti-burping guarantee. Banger works from inside the tire maintaining the tire bead stably close to the rim profile even during the most violent impacts or changes of direction.
 


The first thing that people tell us before trying Banger is that its weight will affect wheel set rolling resistance. Physics tells us that this is wrong and is based on false myths about the forces acting on the wheel set. First of all, Banger allows the use of much lighter tires with lower rolling resistance which tend to require lower pressures. The elastomeric compound, combined with the virtual absence of air inside the tire, not only ensures improved rollover and buoyancy over any kind of obstacle but also the conservation of momentum. This means that the wheel set maintains amazing characteristics of responsiveness and rolling resistance.

 


Banger uses a techno-polymer which is totally innovative world-wide to date. When we first discussed the project with our engineers, they told us that we were completely crazy: "It’s impossible to reach such low densities while maintaining the required elasticity, shock absorption and durability features." Well, today, after 5 years of development we are very proud to present the impossible on the market! A techno-polymer that astoundingly maintains its elastomeric characteristics. Finally, we have studied and developed a "skin" to our product which is both waterproof and compatible with tire sealant. We did not use a material ordinarily available on the market; instead we specially developed a polymer that would meet mountain bike requirements. We could have created Banger with extremely lightweight materials, but this would have had a negative effect on the performance and durability of the product.

 


Banger is suitable for any type of user, from amateurs to professionals, and is available for all formats currently on the market. Banger is available in diameters 26", 27.5" and 29" and in 4 different sizes: XC, Enduro/Trail, Downhill and eBike/Plus.

 


Banger is synonymous with "Stop Compromise". Finally, a total system that can ensure stability, comfort, performance, rolling resistance and prevention of punctures and rim breaks. A system that supports you and helps you in every condition, from climbs to descents, from XC to Downhill.

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At the end of the campaign you will be guided in choosing the most suitable size of Banger for your type of usage and tire. So, don’t worry, our team will help you!

 

What is the recommended pressure?
MrWolf will recommend a base pressure as a starting point with your setup. Nevertheless, the air pressure varies according to the type of usage, bike, rider and tire used. Just by changing the pressure by 0.1 bar/2 psi you’ll perceive enormous changes in Banger’s behavior.

How long does Banger last?
Banger is a product subject to stresses and, consequently, to wear. How long it lasts depends on the type of usage and rider. Our testers used Banger for up to a year without finding serious problems due to wear.

Should I continue using tire sealant?
It's your choice. Some riders prefer to eliminate tire sealant completely for practical reasons, while others continue to use it to maintain tire pressure better. Banger’s skin is compatible with tire sealant so you’ll only have to do your usual maintenance procedure.

Should I replace my valve?No, your valve is already perfect for use with Banger. Just slip our "T" reduction inside your valve to ensure perfect compatibility with Banger. 

Easy setup thanks to the MrWolf App 

An app for mobile devices will be made available to all MrWolf users and will guide riders in choosing the best setting. Input discipline, biker weight and type of terrain to find the most suitable setting for your requirements. The app will also include installation instructions and PRO tips for finding the best setting. Just a few simple clicks to quickly obtain Professional performance.  

 

 

 Customs & Duty Information

We will not mark our product as a gift, as this is illegal and we do not support it. Our prices are included or excluded duty and VAT depending on where you live:

Italy: Included VAT, duty & Shipping Cost
Europe: Included VAT & duty
Rest of World: Not included VAT and duty.

This handy website can assist you calculating the VAT and duty:
http://www.dutycalculator.com/new-import-duty-and-tax-calculation

Risks and challenges

Product development and testing is at a point where the significant technical risks have already been eliminated. We have established relationships with suppliers and manufacturers such that we can produce the required quantity in accordance with our timeline.

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  1. Select this reward

    Pledge €10 or more About $11

    MrWolf's Mug

    Support our project drinking coffee with lots of cream and lots of sugar!

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  2. Select this reward

    Pledge €129 or more About $141

    Super Early Bird | 1 Banger Kit

    Get 1 Banger Kit (2 wheels) | Retail - 249.99€
    Score a Kit of Bangers for yourself and be one of the very first to help bring them to the masses!

    After the campaign we'll contact you to get the proper size.

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    Pledge €149 or more About $163

    Early Bird | 1 Banger Kit

    Get 1 Banger Kit (2 wheels) | Retail - 249.99€
    Get in early and save big on your Bangers!

    After the campaign we'll contact you to get the proper size.

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    Reward no longer available 100 backers
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    Pledge €179 or more About $196

    KickStarter Special | 1 Banger Kit

    Get 1 Banger Kit (2 wheels) | Retail - 249.99€
    There's still time to snag your Bangers and save some dough!

    After the campaign we'll contact you to get the proper size.

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  5. Select this reward

    Pledge €338 or more About $370

    Friendship Pack | 2 Banger Kits

    Get 2 Banger Kits (4 wheels) | Retail - 499.98€
    You'll receive four Bangers so you and a friend can cruise together!

    After the campaign we'll contact you to get the proper sizes.

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  6. Select this reward

    Pledge €1,590 or more About $1,739

    Team Pack | 10 Banger Kits

    Get 10 Banger Kits (20 wheels) | Retail - 2499.90€
    Support your team with 10 ready-to-go Banger Kits! You'll be one of the very first team to carry our brand new system in the races.

    After the campaign we'll contact you to get the proper sizes.

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  7. Select this reward

    Pledge €2,980 or more About $3,259

    Dealer Pack | 20 Banger Kits

    Get 20 Banger Kits (40 wheels) | Retail - 4999.80€
    Stock your showroom with 20 ready-to-go Banger Kits! You'll be one of the very first dealers to carry our brand new system.

    After the campaign we'll contact you to get the proper sizes.

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Funding period

- (45 days)