I’ve got a collection of small pumps including a Lezyne Road Drive and an Airwave Mini of some sort I think. I’ve also got a spare Lezyne Mini Pressure Drive.
I’m guessing any of these would take all day to inflate a 29+ from flat.

What about a medium size Lezyne HV Drive, would that be up to the job, or do I need something bigger?

Edit to add;
I don’t like pumps that connect directly to the valve, I always feel like I’m about to bend the valve.
I’d rather have a short flexible connecting hose.

29+ isn’t really any bigger than 29 when it comes to inflation.
Lezne Hv’s work for me on 4.8’s though if you’re than bothered.

Not much bigger?
Surely if a 3.0 tyre is 1.5 times the width of a 2.0 tyre, it’s about 2.25 times the volume?

Surely if a 3.0 tyre is 1.5 times the width of a 2.0 tyre, it’s about 2.25 times the volume?

In real life it doesn’t work out like that.

There’s not much difference between a 2.5DHF and a Knard on a 50mm rim…
Do you get people wanting a special pump for a 2.5 DHF? 😆

You’ll be asking for special 29+ grips/saddle/seatpost/beard/vegan cycling kit soon. 😛

I expect we’ll see “Enduro” pumps soon for 650b!

Fair enough. I was thinking of a 2.0 tyre on 29mm rim against a 3.0 tyre on a 45mm rim.
Even if it is over twice the volume though, I’ll be running at lower pressures, so I guess it wouldn’t be twice the number of pump strokes to reach full pressure.

TBF.
You should be using a HV pump for any MTB tyre…

Or did you just want to tell people that you’re getting a 29+ bike without actualy saying it. 🙂

I use a road morph now. What’s a 29+?

Can’t beat the Leyzne Alloy Drive.
Works for me & my big ass ol 29+ Knard on a45mm rim.

You know how they say that when man has died out & only cockroaches will be left…
Well they will be living in little cities made of Lezyne Alloy drives. That’s how long lasting they are.

SSStu, the antipathy of sarcasm, great way to start a Sunday