I'm running Nobby Nic's 2.25 and am finding a narrow window of how they work best, like 3 or 4 psi each side of the ideal grip for me for the given conditions.

So lets say I was running 30 F / 35 R in the summer over rough dry ground, then 25 F / 30 R in the wetter months & reduced again to 20 F / 25 R in muddy conditions, have you found less grip with reduced pressures and increased them again ?

I know everyone's different with weight, bike, & tyres but interested what works for you.

Nobby nics are a bit crap really, as they have very thin side walls and need a good pressure to stop them folding over. I had to run 45psi im mine before I got shot of them, when I run about 30psi in most other tyres…..

I found nobby nics to be the best all round tyre by a very long way- they were very good in the mud without being slow and nasty in the dry yet still grippy. I ran 35-40psi just because that's what sounds right in my head and never noticed any difference, though.

Mmmmmm…… I have some Nic's with 'Double Defence' sidewalls which I save to use at rocky centres and found more grip at lower pressures than my standard Nic's so your right about the flimsy side wall.

I run my Nobby Nics at about 25 ish on the front and about 30 ish at the back. These are UST though.

Nobby nics are a bit crap really

Mine are lovely, thanks. Which just goes to show how subjective tyre choice is…

Nobby Nics at 40 PSI?

:shudders:

Mine are lovely, thanks. Which just goes to show how subjective tyre choice is…

Oh the grip and comfort is fine, but they just fold off the rim on the rear all the time when I use them, so I got shot of them. Just too lightweight for me. 🙂 I'm a Bontrager or Kenda man myself….

Bontrager- now there are some crap tyres.

Bontrager Mud X are blooming brill tyres on mud & roots.

Funny how our opinions differ, ain't life great !

Got some standard nobby nics on stans 355 running tubeless, pressure about 32 psi, im 75 kg and batter through everything.

They are the "tits" (awesome) 😛

I really rate Bontrager tyres. 🙂

Mud and roots in warwick? Towpath and tarmac u mean?, that said the crossmarks worked well on Sunday through the warwickshire gloop

running my front nic at 40psi no issues thus far!

As mentioned above tyre choice is very subjective at the best of times and there are too many variables (riding style, rider weight, trail surface, tyre pressure, rim width) involved to get a good recomendation without doing lots of tedious & expensive research.
For what it's worth I use Conti Vert/Vapor (F/R) at just under 40psi and works pretty well for me in Lakes/Dales

I thought it was less pressure = more grip …

…but they just fold off the rim on the rear all the time when I use them….

?? weight related tyre issues ??
😈

?? weight related tyre issues ??

Yep, partly. And cornering speed related. But mostly tyre sidewall related…..

Don't get it with Bonty Jones ACXs, Mud Xs, Kenda Small Block 8s, Nevegals, WTB Moto Rapters, Panaracer Cinders or Fires, so it MUST be that particular tyre and me that don't get on…. 🙂

Like I said though, in a straight line, very good. But cornering? Nope.