Smart Tire Company’s METL: Ride the Change, No Air Required!

Airless, Durable, Stylish, NASA-Tech, Sustainable

In an age where humanity's imagination extends far beyond our earthly bounds, there are few things that still captivate us as the merger of space-age tech and everyday life. Imagine a tire, born from the very same technological prowess that envisioned Mars rovers and lunar landings, gracing your everyday bicycle. It seems The SMART Tire Company has managed just that, by fashioning a new era for cyclists with their METL tire.

Drawing inspiration from NASA's airless tire technology, METL takes biking to a whole other level. Designed to work on standard bike rims, these tires rely on the inherent strength of shape memory alloys, casting aside the traditional need for air. This might sound a bit techy, but think of it this way: instead of a balloon-like structure that needs inflation, METL uses a spring made of a special metal, wrapped in a circular shape, which mimics the buoyancy and flexibility of an air-filled tire, minus the vulnerability to punctures.

Delving deeper into the materiality, Nitinol – a shape memory alloy – is the star of the show. This isn't just any metal; it's a ‘superelastic' one. Stretch it, twist it, exert all the cycling rigors upon it, and like an unwavering warrior, it'll snap right back into shape, bearing the dual qualities of rubber's flexibility and titanium's strength. Such resilience means these tires, initially crafted for a gravel bike, are suitable for both pavement and gravel. This opens up avenues for the tire's versatility, catering to a wider audience of cyclists who frequent different terrains.

A particular selling point is the tire's sustainability. In a world where conservation is not just preferred but vital, the METL tires champion a commendable cause. Using 50% less rubber than traditional tires, they address the environmental concerns of tire disposal, a massive concern given the billions of tires that reach their end-of-life each year. The tread on these tires is replaceable, emphasizing longevity and reducing waste.

And speaking of longevity, the METL tire promises just that – a tire that could, theoretically, last the life of your bike. Gone are the days of tedious puncture repairs, messy sealants, or those unlucky instances where you find yourself carrying or, worse, walking your bike due to a flat. Instead, imagine cruising down city streets or traversing rugged trails, knowing that beneath you is technology conceived for space, designed for Earth, and resilient against all odds.

On the financial side, the tires aren't exactly on the affordable spectrum, with a price tag starting at $500 for a pair. But when you consider the potential savings in the long run – no replacements, no repair kits, no downtimes – it does seem like an investment worth pondering upon.

In essence, METL by The SMART Tire Company isn't merely a tire; it's a revolution. It's an emblem of what can be achieved when the boundaries of innovation are pushed, and the spheres of space tech and terrestrial transportation collide. For the cyclist seeking the next big thing, the confluence of durability, efficiency, and sustainability that METL offers, might just be the Holy Grail they've been waiting for. Here's to the future, riding on wheels that touch both the cosmos and the Earth.


  1. NASA Technology: Born from space missions, these tires have been developed to handle extreme conditions on Mars.
  2. Airless: The METL wheels eliminate the need for air, so there's no risk of flats or pressure maintenance.
  3. Durability: Made from Nitinol, a shape memory alloy, these tires are designed to stretch like rubber while being as strong as titanium. They can withstand significant wear and tear, lasting potentially the life of the vehicle.
  4. Material Efficiency: The tires use 50% less rubber than conventional bike tires, which means they're more sustainable and reduce waste.
  5. Low Rolling Resistance: Higher energy return from Nitinol means the tires have a smoother ride and less work to pedal.
  6. Shock Absorption & Elasticity: The “superelastic” qualities of Nitinol ensure a comfortable ride.
  7. Environmental Benefits: By lasting longer and using less rubber, these tires can contribute to a reduction in waste and environmental damage.
  8. Cost Savings: Despite an initial investment, riders can save money in the long run with no need for replacements, patches, or other maintenance costs associated with conventional tires.
  9. Compatibility: Designed to fit standard bike rims, offering versatility for riders.
  10. Aesthetic Appeal: The unique design of the METL wheel not only provides functionality but also adds a modern, stylish look to bicycles.


  1. Price Point: The initial cost of METL wheels is relatively high, starting at $500 for a basic pair, which might be prohibitive for some potential buyers.
  2. Limited Availability: Currently, they are manufacturing a limited run, which might make them hard to acquire.
  3. Weight Concerns: While the details mention the tire weighs 450g, it's unclear how this compares to traditional bike tires in terms of weight implications for the rider.
  4. New Technology: Being a new product on the market, there may be unforeseen issues or potential improvements in subsequent versions.
  5. Specific Use: Initially designed for a gravel bike, there may be limitations in terms of performance or suitability for other types of cycling.
  6. Dependence on Kickstarter: The product's launch is tied to a Kickstarter campaign. Historically, some Kickstarter projects face delays or unforeseen challenges.
  7. Retreading Costs: Over time, the cost of retreading might accumulate, even if the core tire structure remains intact.
  8. Adoption Hesitation: Major tire companies have been hesitant about airless tires due to past issues. While METL claims to overcome these, some consumers might still be skeptical.

With any groundbreaking technology, there are always potential risks and rewards. The METL tire seems poised to revolutionize the cycling industry, but time will truly tell how it stands up to real-world use and whether it can meet all its claims.

From $500

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