What e*thirteen tire should I buy? (Compare e*thirteen All-Terrain and Semi-Slick tires)

Choose the right tire for your bike by comparing the performance and wear characteristics of the TRS, LG1 EN and LG1 DH tires.


Or download the PDF for easy reference: 

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How much Tire Plasma Sealant Should I use?

Refer to the following table for our minimum recommended volume of Tire Plasma Sealant:




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Issues with tubeless tire sealing

A number of factors can impact how well your tubeless setup seals and retains air. It is normal for even the heaviest duty tires with large amounts of sealant to lose small amounts of air over the course of a 24 hour period. Lighter weight tires with thinner casings will lose air faster.

 Critical Factors

The majority of issues we see with tubeless sealing come from the following:

  • Rim tape - Tape must be fully seated in rim well with no creases or damage which would permit air to escape into the rim itself
  • Valve stems - Valves should be properly seated and tightened per the manufacturer specification
  • Inadequately mixed sealant - It's critical to mix/shake sealant before being installed in the tire. This distributes the critical particulate matter which has settled on the bottom of the bottle 

 Troubleshooting you tubeless setup

Here are some steps to follow if you are having issues getting your setup to retain air:

  • Verify that your rim tape is correctly installed with no tears or seams which might allow air to seep into your rim.
  • Verify that your valve is properly installed and tightened
    • If sealant is emerging from one or more spoke holes, the valve may need to be better sealed
  • Verify that you are using AT MINIMUM the volume of sealant recommended for your tire size by the sealant manufacture.
  • Inflate your tire to the tire mfg's maximum recommended pressure and ride the bike for 10 min or spin the tire on the bike or in a stand for 10 minutes continuously to ensure the sealant is fully coating the inner surface.
    • It is normal to see sealant emerge from pinholes in the tire sidewall as the sealant starts to do it's job. That's what it's for!
  • Over the first days and weeks that the new tire is installed, it is possible that you will lose a bit of air overnight. This will improve as the wheel is ridden and the sealant creates a thicker coating.
  • Remember, no matter how well your sealant is working, it is important to check your tire pressure before every ride with a digital pressure gauge.




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Why does your Tire Plasma Sealant have an expiration date and does it really expire?
When we first developed our sealant we attached an expiration date to it out of an abundance of caution to ensure that it was stable long term. To date we have seen no issues with sealant degradation over time and are confident it will last well beyond it's expiration date.
As with any e*thirteen product, if you ever have issues, we will back it up 100%.

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What tire pressure should I run?

People run wildly different pressures in their tires, for all sorts of reasons. The best tire pressure for you depends on many factors that are personal to you - which is why there is no simple way for us say "this is the right pressure for you". Things such as tire selection, suspension setup, rider skill level, local terrain and many other factors can impact what pressure you should run on a given day.

The air in your tires has an important job, so your tire pressure should be checked before every ride since it is normal to lose air thru the tire casing, even overnight!

Here is a calculation which we recommend as a starting point:

Pbase = (your weight in lbs.) / 8

Front tire pressure in PSI= Pbase 

Rear tire pressure in PSI = Pbase + 3 

See Table below for calculated values!

For ebikes, considering the additional weight we recommend +3 PSI to above values

If you stopped reading now and you inflated your tires to those pressures, you'd be able to ride your bike, and the performance would probably be okay, and you'd be unlikely to dent or damage your rims.

Once you have that baseline pressure set in your mind, you can start experimenting with your pressure. The right pressure for you could be more or less than what you ended up with using the above equation. If you decide you want to let air out, you need to be acutely aware of what a rim impact feels like when riding. If your rim is contacting the ground through your tire (impact), your tire pressure is too low and you are risking a rim failure. 

Things to consider as you start to experiment:

  • We ALWAYS recommend using a digital pressure gauge. Don't rely on the potentially suspect analog gauge on your pump or "tire feel" by compressing the tire with your hands. 
  • Tire sidewall construction - heavier sidewall tires can generally run lower pressure
  • Tire Volume - wider, larger diameter tires hold more air, which will develop a lower spring rate
  • Tire Profile - tires with square tread profile may need a little more air to roll fast, while rounder tires may allow slightly lower pressure
  • Tire inserts may help reduce the possibility of rim damage. Some inserts like Cushcore will also provide casing stability. When running inserts which provide casing stability, it is critical to not reduce pressure more than 2 PSI from your correct non-insert pressure. Even with inserts, you can still damage or crack a rim if your pressure is too low. 

Keep in mind the role of air in your tires as you are experimenting:

  • Absorb impacts like a spring and protect your rim
  • Support the casing and stiffen the tire under side/turning loads
  • Stiffen the carcass to reduce knob deflection under braking and turning
  • Absorb and blunt vibrations before they reach you
  • Maintain the tire cross-section to reduce rolling resistance while rolling, pedaling and braking
  • Probably other things

 Reference Table:

Weight (lbs) Weight (kg) Front Pressure (psi) Rear Pressure (psi)
Under 100 Under 45 12.5 15.5
100-110 50-45 13.75 16.75
110-120 55-50 15 18
120-130 59-55 16.25 19.25
130-140 64-59 17.5 20.5
140-150 68-64 18.75 21.75
150-160 73-68 20 23
160-170 77-73 21.25 24.25
170-180 82-77 22.5 25.5
180-190 86-82 23.75 26.75
190-200 91-86 25 28
200-210 95-91 26.25 29.25
210-220 100-95 27.5 30.5
220-230 105-100 28.75 31.75
230-240 109-105 30 33
240-250 114-109 31.25 34.25

**For E-Bikes - consider the additional weight of the bike, and add 3 psi to be safe!**

*equation stolen <ahem>, adapted from ye olde Stan's Pressure Method

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What rims will your valves fit?

Our valves will fit a variety of rims, however rim depth is an important factor in whether or not they will work for your rims. Compare your rim measurements to the measurements below to make sure they'll work for you.

2017 models come in 2 lengths and colors.

Black stem: 19-27mm rims - if you use the included o-ring it’ll work up to 29mm. this covers almost all aluminum rims.Use these for all e*thirteen rims

Silver stem: 27-37mm - if you use the included o-ring it’ll work up to 39mm. this covers deep section carbon rims like Enve, DT Swiss.

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What does "reinforced" mean on the sidewall of my e*thirteen tire?

e*thirteen tires feature a reinforced tread for maximum durability at a competitive weight. This is a special layer under the tread of the tire that increases puncture and tear resistance.

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Can I use e*thirteen tires with a tube?

Absolutely. While they are tubeless compatible they can still be used with a tube.

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What width tubeless tape do I need?

For our older 21mm wide rims we recommend 25mm wide tubeless tape.

For 24mm wide rims we recommend 28mm wide tubeless tape.

For our newer 27-28mm wide rims we recommend 30mm wide tubeless tape.

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What do you mean by "tubeless compatible" on e*thirteen tires?

Our tires are not UST defined tubeless tires.

This means that you will need a tubeless compatible rim and tire sealant in order for our tires to function properly without a tube.

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What rim widths do TRS tires they work on?

TRS Tires will work best on rims wdiths from 24-31mm.

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What sealant is ok to use with TRS tires?

While we are partial to our own sealant, TRS tires are compatible with other tubeless sealants on the market such and Stans, Slime and Orange Seal.

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What is the maximum tire pressure for TRS tires?

Maximum pressure is 50PSI (3.5BAR)

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What are the durometers of TRS tires?

Please keep in mind that durometer is only part of the story with tires. We can use the stickiest rubber in the world, but it is completely useless if the knobs roll over or aren't shaped the right way.

With that in mind:

Race level durometer


Plus level durometer

50A / 61A CENTER

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