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Thinking of going 2.8 on my hardtail

PB Forum :: 27.5/650b
Thinking of going 2.8 on my hardtail
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flag DrinkyCrow
Posted: Nov 29, 2022 at 18:40 Quote
What 2.8 tire preassure you running on your 27.5?

Any tires you can think of that run "firm" for any given preassure?
flag Ontario123
Posted: Dec 5, 2022 at 4:19 Quote
I'm 170 pounds running Maxxis Exo 2.8's on 37mm rims.

15-16psi is my sweet spot. 18psi is WAY too bouncy for my tastes, and 12psi gets squirmy in the corners.

Love the comfort. Usually Rekons front and back, or a 2.8 Ikon on the back if I want to get extra drifty.
flag DJ-24
Posted: Dec 5, 2022 at 7:11 Quote
The Continental Trailking Is still nice and supportive at 16-18 psi at 230lbs.
flag DrinkyCrow
Posted: Dec 7, 2022 at 15:03 Quote
Ok thanks. I was thinking Nobby Nic's but will look into those. Tires are going on WAO Converts - like to keep rotating mass down.
flag Explodo
Posted: Dec 7, 2022 at 15:46 Quote
I'm about 210 and for a 2.8 High Roller 2 on a 45 internal rim I run 18 psi. I can run a 3.0 High Roller 2 on that same rim at 15 psi and it does great.
flag Trevorsowers
Posted: Dec 15, 2022 at 17:21 Quote
I weigh 190-200 depending on season LOL. I find Maxxis 2.8 EXO way too squirmy and easily torn and punctured. I am now using WTB Tough Casing and I find them much more firm and durable. I can run a WTB Tough Casing 2.8 at 15 PSI on the rear with no issues.
flag DrinkyCrow
Posted: Dec 29, 2022 at 16:58 Quote
You guys running alloy or carbon rims. Thinking about vertical compliance here.....
flag Explodo
Posted: Dec 29, 2022 at 20:38 Quote
I run nextie jungle fox 2 rims. They're cheap(for carbon)and have been plenty durable. I would think that vertical compliance is less of an issue with a high volume tire.
flag Ontario123
Posted: Dec 31, 2022 at 5:43 Quote
I went from my OEM aluminum wheels to a fairly stiff Bontrager carbon rim. You would THINK that all that squish in a plus tire would negate the difference in feel between wheels, but that wasnt my experience.

My carbon wheels felt more responsive when I pushed into them. They also felt nervous and chattery on off-camber sections at first. Even running 2.8's at 15-16 psi.
flag Wermuth44
Posted: Jan 7, 2023 at 9:42 Quote
I have 27.5, 2.8 rekon+ with 30i rims on my hardtail. I’m thinking of buying the enve 535 (35i) rim set. How would the lighter and wider internal width change the plus tires?
It feels like my 2.8 reckons are too skinny and I’m not optimizing the plus tires on my hardtail. Thoughts? I’m newer ish to mountain biking…
flag DrinkyCrow
Posted: Jan 7, 2023 at 20:35 Quote
2.8 is the narrowest tyre I'd run on a 35mm wide rim. Lighter is better, not sure about stiffer though. Maybe with 2.8's.
flag barp
Posted: Jan 7, 2023 at 21:20 Quote
DrinkyCrow wrote:
2.8 is the narrowest tyre I'd run on a 35mm wide rim. Lighter is better, not sure about stiffer though. Maybe with 2.8's.

I have a 2.4WT Maxxis Dissector in the rear and a 2.5WT Minion DHF in the front, both on 35 mm internal width rims (Spank Oozy Trail 395+). Spank says they're intended for a 2.3 to 3.0 inch tire width.

Maxxis also approves: "WT tires are optimized for a 35mm inner rim width but are proven to work over a range from 30-35mm".

But yeah, a 2.8 inch tire is fine on a 35 mm rim.
flag DrinkyCrow
Posted: Jan 8, 2023 at 20:09 Quote
So, I though it was sort of rule-of-thumb that it wasn't optimal, at least in rocky terrain, to have the sidewalls bulging out past the plane of the side knobs.

I guess Maxxis "WT" tires were optimized not to.
photo
My 2.6 Addix Soft Hans Dampf on WAO Coverts do. Like a mil.
flag 52Jeff
Posted: Jan 9, 2023 at 14:56 Quote
Tire pressure depends on tire diameter, width, casing, rim width, terrain, inserts or not, bike weight and rider weight.

My 27.5 x 2.8 Michelin Wild enduro on 35 inner rims, 35 pound hardtail on rocky terrain, im 180 and run Tannus Tubless inserts.

I run 13PSI Front and 15PSI rear.
flag Explodo
Posted: Jan 9, 2023 at 15:03 Quote
52Jeff wrote:
Tire pressure depends on tire diameter, width, casing, rim width, terrain, inserts or not, bike weight and rider weight.

My 27.5 x 2.8 Michelin Wild enduro on 35 inner rims, 35 pound hardtail on rocky terrain, im 180 and run Tannus Tubless inserts.

I run 13PSI Front and 15PSI rear.

Proper pressure depends on all those factors. You'll get more stability and less squirm from a wider rim than a narrow one. I have a 27.5x2.8 that's on a 45 internal(the size maxxis recommended for a 3.0 tire, which preceded the 2.Cool and it works fine. I think a 40 would be better for the 2.8. The 45 is perfect for 3.0, which is visibly much bigger than a 2.8.
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