Teravail Tubeless System

Teravail Tubeless tires use a proprietary bead material and shape in order to create a strong, airtight seal between the tire and rim. In order to maintain the most supple casings for our tires we need to employ the use of a tire sealant liquid (see compatible sealant chart). Liquid sealants add a minimal amount of weight and seal any imperfections in the rim/bead area as well as micro-pores in the tire. The sealant creates an air barrier while maintaining the ride quality that can be sacrificed by using a tube or bonding a butyl airtight seal to the tire.

An additional benefit to using a sealant-based tubeless system is improved flat protection. As the tire rotates, it constantly agitates the liquid sealant. In the instance of a puncture, that agitation aids the sealant in quickly finding the puncture and closing it. In the case of a larger puncture that the sealant is not able to repair, it’s easy to fix the tire with a patch on the inside.

Flat Protection / Casing Reinforcement

Tread Flat Protection

This level of protection adds a woven aramid fiber reinforcement layer between the outer rubber and the inner casing, under the tire tread only, excluding the side walls. This material is 2x stronger than Kevlar and lighter in weight than any competitive product. This layer provides moderate protection against punctures that may result in a flat tire.

Full Flat Protection

In this level, the entire casing from bead to bead is reinforced with a woven aramid fiber layer between the inner casing and the outer rubber. This material is 2x stronger than Kevlar and lighter in weight than any competitive product. It provides a high level of puncture and flat protection.


800D Strong Cord (60 TPI versions)

800D polyamide cord is nearly twice as strong as the cord used in conventional tires. It improves rigidity, pinch flat and side cut protection.

AX Casing (120 TPI versions)

Superfine AX Casing is the perfect blend of suppleness and toughness to help ward off cuts and flats and provide superior ride quality. This casing is 3x more puncture resistant for a tire of comparable weight than other casing reinforcement systems currently available.


TPI refers to the threads per inch of woven material in the tire casing. A 60 TPI casing uses fewer, larger threads, resulting in a stiffer, more durable structure. A 120 TPI casing uses a higher count of finer threads, which results in a lighter and more flexible tire and better ride quality.


This refers to the pounds per square inch of air pressure in the tire.

Optimal pressure depends on the load it is supporting. A heavier rider needs a higher pressure than a lighter rider for identical tires. Rough surfaces generally call for a reduction in pressure to improve ride comfort and traction.


The European Tire and Rim Technical Organization is the universal standard reference for tire and rim sizes that articulates circumference.

NOTE: Always reference the ETRTO number when ordering to ensure accuracy in tire fit.


Refer to for complete tire installation instructions.

Teravail tires are compatible with specific ETRTO sized rims. Check with rim manufacturer for specific rim compatibility.

Sealant Compatibility

We have tested our tires to be compatible with Stans, Slime, Continental, and Hutchinson sealant.

Tire Width

We measure our tires by the casing width (A), rather than the tread width (B). Casing width has the largest effect on the ride quality of the tire.