dumb ass returning noob question.. will I die?

hiya peeps.

After a good 10 year odd + hiatus from the sport, thought I’d treat myself to a new bike etc.

Picked up a trek top fuel 8, with tubeless set up.. wheels say a min pressure of 30 psi.. Is that just for tubed? Got it set up at 20psi for my “svelte” 95+kg frame.

cheers.

You can run less tubeless but you might want cush core type inserts to stop rim dingers

Better to go with a higher pressure initially then reduce as you ride along.

Better to go with a higher pressure initially then reduce as you ride along.

Probably better to stop the bike first or else your hands might get caught in the spokes 👍

I would have expected you will need about 30psi tubeless anyway, unless they are super stiff dh tyres. Maybe 28psi on the front. 20 psi = very roughly a 63kg rider.

Welcome back!

Depends a bit on the casing but at a similar “svelte” weight I would find that a bit squirmy with the stock tyres which appear to be pretty lightweight and thin.

I’d start at 25 and adjust accordingly.  I run sluightly thicker casings for normal “trail” riding and have 26-28 out back and 22-25 out front depending on conditions.

Start at about 30.

Similar size, I ride light (as in don’t smash into stuff with all my bodyweight) and am running about 30.

Pop your details into the Trek bike setup website

It got things very close to the mark for my Remedy.

I find 30 far too hard. I run around 18 front and 20 rear on my ebike and 20/22 on my Ragley HT both with tubes

“ wheels say a min pressure of 30 psi.”

Could that actually be the max tubeless pressure?

Cheers seriousrikk. That says 25 /29 for front and rear.

Yes you will die. It probably won’t be related to MTBing though. Cycling is likely to extend your life.

That says 25 /29 for front and rear.

Sounds about right.

My pump’s gauge is 20psi out though and so use a Topeak digital pressure gauge.

I have no idea how much pressure is in my MTB or gravel bike tyres, the gauge on the pump doesn’t work. I just give it the very accurate double thumb press and add and subtract until it feels “right” before I leave the house then do the same when on the trail.

The best way is to start the out with whatever, then successively let out more and more air on the ride until you clatter the rim more or less catastrophically into a rock.

Or that’s what I do anyway.

Put numbers in this:

https://axs.sram.com/guides/tire/pressure

Use the pressures it gives you as a starting point.

I have a trek top fuel and weigh about the same as you, I run 20 front and 27 rear, any lower in the rear and I feel the rim. It as the XR4 fitted.