Making room at the table for the smaller guy

Teravail Kessel Tire Review

Photos Deniz Merdano (unless noted)
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It seems to me that there is a plateau in the knowledge-confidence curve. The amount of information from both marketing, anecdotal reports, and real time experience starts to cloud your judgment about what works and what doesn't. I was recently in one of these flat, confusing, and uninspiring clouds with the tires I had been running.

I'm somewhat lazy with swapping tires for the conditions and trails on the menu. I tend to leave a tire on the bike and learn to ride it and deal with its short comings. What better way to write a comprehensive review of a product than go through victorious moments and hardships together. Right?

Until recently, I had no idea Teravail was a new company making tires with interesting names like Cumberland, EhLine (best name ever), Kessel, Honcho, and Sparwood. To be honest, the only reason I paid any attention to a product in an already saturated market was because they came in a tanwall option.

Cam had a couple of these tires in 29" variety in his pile of parts to be tested. I put my hand up hoping they were tanwall ones. They were not - instead, they were just another set of black side wall, Minion DHF-looking rubber that I couldn't care less about. I picked them up and set them up uneventfully with a floor pump on the We Are One Composite Agent Wheels that night.

The following day was a selection of Squamish slab trails that had more opportunities to die than a Michael Bay movie. Thankfully I didn't die the next day in Squamish - anticlimactic, I know, however the sound of the tires gripping on the porous granite was incredible to hear and experience.


Riding on the edge of life altering moves.


The combination that got me hooked.

Teravail's Tire Recipe

Teravail offers the Kessel in both 29 and 27.5" options for $85-90 USD or $112-118 CAD. There are 9 different combinations in the line, six dedicated to 29" and three for 27.5" wheels. On top of wheelsize variants, you have options for different compounds, two widths, as well as two casing, sidewall and colour options. I tested the 29 x 2.6 Durable Grip compound out front and the 29 x 2.4 Ultra Durable Grip compound on the rear. If I were to simplify the feel of the casings, the Durable is akin to EXO+ in the Maxxis line and Ultra Durable is a close match to Maxxis' DoubleDown casing.

I popped them on to my scale and was surprised to see the weights of the tires to be nearly identical to each other.

If you like a round profile tire that can be leaned over aggressively, you will need no time getting used to the Teravail Kessels. The DHF-like pattern with angled centre knobs roll with confidence and speed. The angled part of the center knobs play a big role in the predictability of this tire as it leans over on flat corners. The transition between center and side knobs are gradual and confidence-inspiring. Trailing edges of the center knobs act as transitional zones in softer conditions. Loose over hardpack is always a challenge for tires with tall knobs and Kessels do skate around when conditions are marbly.

Then came the rains and down went the front pressure to 18 and rear to 20-21psi. I found the bottom of the tire more often that I would like at 21 psi. 22psi would be the lowest I'd go without inserts.They matched the aggressive character of the Forbidden Druid well and allowed for some serious high-5s after riding through some big terrain. Not a flat, no burping, no fuss. None.

Then came the rains and down went the front pressure to 18 psi front and 20-21 psi in the rear. I found the bottom of the tire more often than I would like at 21 psi, so 22 psi became the lowest I'd go without inserts.

After all these miles, the front tire still looks new and the rear is not too bad for wear, either. How was this possible? Was the rubber compound too hard? Am I just that gentle on tires? As a lover of good schralps and mis-judged doubles, I tear side knobs off of tires and pinch flat them occasionally. Not on the Kessels. They have proven to be a robust choice for aggressive riding.

Tim Coleman, an all around faster guy than myself on anything with wheels, lent me his durometer to test the softness of the centre and side knobs on the Kessels. Maxxis and Bontrager don't shy away from sharing this information, but you'd be hard pressed to find another company that publicly flaunts their tires' Shore hardness, measured by a durometer. Which makes me believe that it is not the only variable that makes a tire ridable in diverse conditions.

As AJ recently mentioned in his Michelin review, the rebound speed of the rubber influences the perceived grip depending on the rider's weight and speed. An aggressive 150 lb rider like myself got along with the Teravails in a wide variety of trail conditions.


Center knobs clocking in at 54a at room temperature.


On the same tire, the side knobs measured 50a at room temperature. In near freezing temperatures, these numbers shot up to near 70a.


Rough high-speed trails are the bread and butter of Teravail Kessels.


On sculpted hardpack things get a little skatey on the 2.6 option. Photo - Cam McRae

Teravail Kessel 29 x 2.6 Durable 29 x 2.4 Ultra Durable tires

The Good

  • Durable casing at a minimal weight penalty
  • Predictable round profile that is front and rear worthy
  • Excellent grip in steep, rough terrain in dry or wet uphill or downhill
  • Great looking Tan Wall option
  • High volume 2.6 or lower volume 2.4 options

The Not so Good

  • 2.6 as a Front tire can be floaty on hardpacked trails
  • Not the fastest rolling tires
  • Not a cheap option in Canada

The Kessels have lots of competition in the aggressive tire game - which is saturated with 29 different varieties of Minion and its derivatives - but they provide a supportive ride with tons of grip on fast or slow tech moves. While they don't offer the value of Michelin's Enduro tires, they are definitely a solid option in the aggressive tire game, especially if durability is a prime consideration for you.

TERAVAIL website

Deniz Merdano



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+2 Dogl0rd Tremeer023 jaydubmah Nologo

OMG, how can a company so flagrantly rip off anothers design like that? :-o I thought SpecialED was bad with the Butcher (in the looks, not performance, no where near DHF quality), but this is just a flat out rip off, it's like an identical twin where the only difference is one has a small mole or 2 and the other doesn't. Worse yet, they're more expensive than the Maxxxis original.


+5 Grif Dogl0rd 4Runner1 Tremeer023 Lynx .

Being identical yet more expensive than Maxxis seems like a questionable way to make your big entry into a crowded marketplace.


+1 DMVancouver Nologo jaydubmah

There are a ton of people who don't know about maxxis.

Gravel riders don't want maxxis logos on their bikes either.

There are plenty of rider groups who don't want/need the orange brand. 

Teravail have plenty of tires for the non mountain bikers and using a familiar pattern for their only aggressive tire makes sense in the laziest sense of the word. 

It's been more important than ever, to have decent tire options on the bike shop walls with the absent stock of maxxis rubber. 

Just look at michelins. Noone paid any attention to them in the Sea to Sky corridor until there were no maxgrip tires to buy...



I don't even think a Butcher looks that much like a Minion. This Kessel on the other hand ...



I wonder who actually makes them. Bontrager’s high end offerings are said to be made by Maxxis. Tread patterns for Bontrager aren’t Maxxis like except for the G tread pattern though.


+1 Deniz Merdano

I'd be interested to see what the QBP (distributor) sets as Canadian MSRP. I'd hazard a guess it's in direct competition with Maxxis pricing, keeping in mind that online Maxxis prices are not necessarily MSRP. 

Also, the middle knobs of the Kessel are wider, and bridge the gap as intermediary knobs vs. the distinct lack of intermediary knob of a DHF. Food for thought.


+1 Deniz Merdano

Just going to point out that Teravail is a QBP brand. Not exactly the 'small guy' and they probably aren't super worried about ripping off anyone since they are pretty much the dominant distributer.



You are right about that.

QBP is a huge distribution. 

However, Teravail still has a small footprint in mountain biking, atleast in Canada.



So how is the traction in those near freezing temperatures? 70a does not sound grippy but then again I've never seen the Shore numbers of other tyres in those temperatures either.



On this particular day, the tires did incredibly well. (Photos I did for another review airing shortly will give you an idea on conditions)

And there were reports from a few maxgrip users that their tires were all over the place and unpredictable.

I quickly checked a friend's maxgrip assegai and it came in at close to 70a as well.. 

Because it was a one time anectodal experience, I'm saving conclusions for a review that should encapsulate a wide range of tires in different temperatures and moisture levels.



There's some good discussion on temperature sensitivity of rubber compounds happening on the forum right now. Someone found information from Maxxis saying that 3C Maxx Terra and Maxx Grip harden below 6 deg C, and their Dual Compound tires are actually a better choice at low temperatures. Others are claiming that Shwalbe tires are more temperature-stable.


It would be awesome to have an article digging into this further.


+1 DMVancouver

I'm working on an article on this very topic 

Not only temperature but humidity as well.

I don't have a way of measuring rubber rebound however, which has a major role in the perceived grip.



skatey on hardpack but not in the rough? I'm a little lost on that. The knobs don't look tall enough to be squirmy but if so, it should be the same in both those conditions.

Can you explain what I'm not getting?




I experienced that with the 2.6 up front too. The knobs seem less focused on hardpack, whereas they most definitely grab on gnarled surfaces.


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