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E-bike tires – useful or useless?

E-Bike Reifen

Kai |

 

E-bike tires, E-bike chain, E-bike brakes – there are some components that are specifically made for e-bikes. Is it just a money-making scheme or does it make sense? Here we take a closer look at e-bike tires. Do you need them and if so, what can they do? Find out everything you need to know now to choose the right tires for your electric bike.

A critical question arises right at the beginning. Why should an e-bike or pedelec need different tires than another bicycle?

Why E-bike tires?

There are two good reasons to fit special tires on an e-bike: safety and durability.

An e-bike is faster and heavier, yet you want to accelerate without spinning tires, not slip out of the curve, and last but not least, brake safely. E-bike tires are made exactly for this: for stable handling at higher speeds, for good grip, and reliable braking. This guarantees more safety! Especially for city bikers and the MTB community, these are absolute prerequisites!

The higher weight of an e-bike has an unpleasant consequence: bicycle tires wear out faster. The higher speed at which an e-bike travels and the higher weight cause the tires to wear out faster. Special tires for e-bikes simply last longer!

The perfect tire width and tire size on the e-bike

The selection of tire size does not differ from a regular bicycle, so we won't expand on this point here. In our blog, you can find help in selecting the appropriate tire size. You can generally buy e-bike tires in all common tire sizes.

28 inches, 27 inches, or 29 inches – in what sizes are e-bike tires available?

Even in particularly small sizes like 18 or 20 inches, there are tires and tubes for e-bikes, suitable for transport e-bikes with smaller wheels, compact bikes, or folding bikes. From 24 inches, there are e-bikes for children and teenagers and the corresponding tires.
Adult bikes ride on 26 inches, 28 inches, 27.5 or 29 inches. In these tire sizes, you can also buy e-bike tires.
Besides the size, you can also choose between wire tires or folding tires.

What tire width on the e-bike?

Unlike tire size (or wheel diameter), the tire width  on the e-bike is a special topic. Pedelecs and e-bikes usually ride on slightly wider tires than a comparable bicycle. The reason for this is quite simple: more tire width improves grip, traction, braking properties, and puncture protection. Why more grip and so on are important for the electric bike, you have already read above. More tire width makes the e-bike slightly less efficient. No problem! You have a motor! It is absolutely legitimate to fully utilize the tire clearance and fit wide tires. All information about the appropriate tire width can be found in our own blog post.

Tire without puncture protection
Tire with puncture protection
 

In the cross-section, you can see the structure of a bicycle tire well, here once with puncture protection (right, red insert) and once without (left). Image © Pirelli

The Structure of an E-Bike Tire

So you know how a bicycle tire is constructed and what is done differently with an e-bike tire, we will now briefly break down a tire into its components.

Give Rubber – E-Bike Tires Have a Thick Tread

Every bicycle tire rolls on a rubber layer, and for e-bike tires, this layer – the tread – is often particularly thick. This way, the tire is not cut or punctured too quickly despite the higher overall weight of the bike. More material also means that the tire has a greater mileage before it is worn out and needs to be replaced. 

E-bike tires are therefore overall thicker, which makes them more durable. On the other hand, the tires weigh more than other bicycle tires for this reason. 

The Perfect Rubber Mix for E-Bikes

The rubber compound from which the outer skin of a tire is made has a huge impact on the bike's riding characteristics. There are harder and softer “compounds” (English for “mixture”), the harder the outer part of the tire is, the faster the bike becomes, as the wheels roll better. However, it becomes more slippery.

A softer rubber compound  It adheres well to the road, giving you more grip. The bike is less efficient, which means for an e-bike: You won't get as far on a single battery charge. However, it remains stable in curves, on wet roads, or during sudden braking maneuvers, it doesn't break away or slip. The "braking maneuvers" are an important keyword, by the way! If the tire adheres well to the road, the bike also brakes much more safely, which is absolutely essential at high speeds! You probably already guessed it... with an e-bike or pedelec, stability is always prioritized, even if it means losing a few watts of power. 

The carcass – the safety net

The carcass is the basic framework of the tire, consisting of a mesh-like fabric that stabilizes the tire. The denser the mesh, the more stable the tire, and particularly stable carcasses are used for e-bikes. 

The puncture protection

Between the tread and the carcass, puncture-proof tires have an insert that prevents punctures and cuts through the tread. Not every tire, not even every tire for e-bikes, has puncture protection!

Thicker sidewalls

Special tires for e-bikes also have more material in the sidewall. This keeps the tire stable on one hand, and on the other hand, the tube is better protected against lateral cuts.

 

Do e-bike tires need special puncture protection?

A flat tire is fortunately not a catastrophe, the most common bicycle breakdown is usually more annoying than fatal. To ensure your bike tires roll over shards, sharp-edged gravel, or thorns without immediately getting holes, there are several ways today to make the tire puncture-proof and thus resistant to punctures and cuts. Tire manufacturers, of course, have their trade secrets here, but generally, it is the special construction features that make modern tires puncture-proof.

  • The tires have thicker walls
  • A puncture protection insert protects the tube inside the tire from punctures
  • The sidewall of a puncture-proof tire is also reinforced

Of course, the puncture protection medal also has its flip side. Puncture-proof tires are thicker, because the thicker the tire, the further an object can penetrate before it can cause damage, logically. But generally, the casing also becomes heavier, which fortunately doesn't weigh too heavily on the overall weight of an e-bike. The other point is the purchase price, for bike tires with advanced puncture protection, you have to shell out a bit more. However, since you will have less hassle, and fewer repair costs and new tubes will be needed, this is usually gladly accepted.

Do you really need special e-bike tires?

You now know how pedelec tires are constructed and function. But do you really need them? After all, they are often a bit more expensive than other bicycle tires.

Whether your bike benefits from the slightly more expensive e-bike tires depends, among other things, on how much you ride. 

If you ride rather infrequently, and not at full throttle, it may be that normal bicycle tires are absolutely sufficient. Even if you only ride on well-paved roads and in dry conditions, simple tires will suffice. 

Weight also plays a role. A light rider on a "light e-bike" might be able to save the investment, especially if the bike is used infrequently and only for short distances. 

Therefore, our conclusion: If …

  • you ride a lot
  • you like to fully exploit the drive's thrust and ride fast
  • you ride in all weather conditions
  • e-bike + cyclist + luggage result in a high total weight

… e-bike tires are a good investment.

 Tires for E-MTBs

Enduro, Downhill, XC, or AllMountain, for every MTB discipline today there is also a suitable eMTB and, of course, thick tires in 27.7 or 29 inches that withstand the enormous demands. No matter if you ride a hardtail or a fully, if you want to show your MTB where the hammer hangs in the terrain, it should wear special tires for E-MTBs! An E-MTB pretty much screams "Here!" in all critical points. The bikes are usually heavier, and you want to make it speed-wise bang. You want safe handling, perfect grip, and also decelerate in time. You need E-MTB tires!

 

Tires for Trekking E-Bike and City E-Bikes

Reliability and durability are two characteristics that play an important role on long distances and for commuters! Exactly these characteristics are naturally brought by trekking tires and city e-bike tires

In the city bike, safety in dense city traffic is added. Here you have to react in a flash and – very important – be able to rely on your brakes. Optimal wheels and top tires with the perfect rubber compound and a suitable all-weather profile play an important role here!

You can find e-bike tires for compact wheels or folding bikes in 18 or 20 inches, some cargo e-bikes also need this tire size. Common tire sizes are otherwise 26, 28, or 29 inches.

There are also special tires for e-racing bikes and e-gravel bikes , but they are still quite rare. 

 

The E-Bike with the Fat Tires

An "E-bike with fat tires," also known in professional circles as a fatbike, is always an eye-catcher. After a brief hype, these extraordinary bicycles almost disappeared again, as the massive rolling resistance made the bio-versions simply uninteresting. But then came the e-bikes, and with them came the fat e-bikes! Snow, gravel, or sand, it doesn't matter, the fat bike rolls over it with its thick tires. However, the market is so small that special e-bike tires in such oversized dimensions are rather rare. 

Do you have to fit tires for e-bikes? 

Whether you benefit from the features of special bicycle tires for e-bikes is one question. The other is: Do you perhaps have to have them on the e-bike? The regulation is currently very consumer-friendly. 

If you ride a normal e-bike or pedelec that supports you up to 25km/h, you are not required to fit special e-bike tires. 

It is different for faster S-pedelecs

If your bike contributes motor power up to 45km/h (or more), it is an S-pedelec and then it must have special tires!

Tires for S-pedelecs must have the appropriate approval and be tested at higher speeds. Most tire manufacturers round up and differentiate their products by "E-Bike 25" and "E-Bike 50".

What is the ECE-R75 standard for tires?

Like every product in Germany and the EU, tires are also tested, regulated, or subject to regulations and standards. For tires, the ECE-R75 standard applies, which regulates the necessary test procedures, load limits, and approvals. Since an S-pedelec is not considered a bicycle but a light motorcycle, it must have tires that meet this standard and are approved for a faster e-bike.

E-Bike Tires

The right tire for your e-speedster... E-bike tires with 50 approval. Image © Continental

 

“E-Bike ready 25” and “E-Bike ready 50”

There is no uniform designation for e-bike tires, so manufacturers have come up with their own. At the bicycle tire veteran Schwalbe tires recommended for regular e-bikes are called “E-Bike ready 25”, and those with the necessary approval for S-Pedelecs are labeled “E-Bike ready 50”. Premium manufacturer Pirelli offers tires for E-MTBs, called somewhat unoriginally Scorpion (like all MTB tires from the manufacturer) but with the addition E-MTB. At Maxxis there are tires for S-Pedelecs named e50, and at Continental you will find an “e” in the name of the tire and a symbol with a plug with 25 or 50.

 

Advantages & Disadvantages at a Glance

Advantages 

Disadvantages

✅ safe driving behavior at high speeds

❌ less efficient

✅ safe braking

❌ higher price

✅ stable cornering

❌ heavier

✅ less prone to punctures

 

✅ higher performance

 

✅ now available in almost all sizes and for all types of bicycles

 

§§§ Please note that we cannot provide binding information on standards and the applicable legal situation!

Title image © Cannondale

You can find many more details in the other parts of our tire series:

  1. How to determine the tire pressure for your bicycle

  2. Find the right tire width for your bicycle

  3. How to convert your MTB to tubeless

  4. Everything you need to know about bicycle valves

  5. How to determine the tire size for your bicycle

  6. Gravel tires – what you need to know!

There is also a lot to read about e-bikes:

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