We've asked it a few times before, but it seems like every season there's another tire size that's supposed to be the next big thing. Last year we saw the bigger 2.8"-3.0" plus-size tires fade away in favor of 2.6" options, while there's still a strong following of 2.4"-2.5" tires.
The XC crowd has foregone 2.2" for 2.35" in many cases, and even wider at times, and trail riders are constantly debating as to whether they want more traction or less rolling resistance. The amount of riders realizing you can pedal uphill with ease and still get down quickly on an appropriately spec'd bike has grown to the point that downcountry actually is a thing, and bikes can transfer from pedaling trail in the morning to doing laps in the bike park in the afternoon by simply throwing on a full face helmet.
No matter what you ride, tires are one of the most important elements of the experience and the width of your tires directly impacts a lot of the handling and feel of your bike.
How wide are your tires?
Answer both!
The 2.3 are just more precise the knob spacing is better and they cut and lean better. And are a 1/2 lb less rotational weight.
Anyway schwalbe 2.3 is the same as other brands 2.4/2.5.
My most recent tires, all on 30 mm rims, measured at the casing:
Kenda 2.6": Exactly 2.6" (multiple models)
Vittoria 2.6": 2.55"
IRC 2.6": 2.65" (quite a change for them!)
WTB 2.5": 2.45" (Convict), 2.55" (Breakout)
But getting close to it. At these rates I'd be surprised in a year or two if I can still get tires. My Yeti SB66c is everything I want in a bike, so have been avoiding buying a new one.
I've not seen a massive reduction in availability of 26" parts yet, and quite a few places still have new old stock - for example I also bought a set of sram roam 50 wheels (pre carbon) for £300 the pair off ebay new (they were £500+ each originally)
I mean, we've got Coninental, Michelin, Good Year, Pirelli, etc... Maybe if there were more actual tire manufacturers we'd see more new tire designs & less copies/rebrands?
Haven't noticed any real world increase in drag with it just on the front.
Vittoria Morsa G+ 2.3 front/rear on XC/light trail bike. Vittoria Morsa very fast rolling tire (fast as set of Maxxis Ikons) and has pretty good cornering knobs.
Park//freeride bike - 26x2.5 (regular maxxis width) front/2.4 (regular maxxis width) rear on 27mm rims
Enduro/All mtn bike - 27.5x2.5 WT front/ 27.5 2.5 WT rear on 31mm rims
DJ - 26x2.2 on 25mm rims
225/45 R18
People used to think my old 26" x 2.7" Minion DHFs were overkill, but they measured about 2.3". I also had a 2.0" tire that came in at 1.7" - I knew I was getting a narrow, XC racing tire, but that was ridiculous.
Oh wait... That's doesn't seem like the right 275...
And geez, if you have more than one bike shouldn't you put your favorite tire size on them all?
It may be easy for you to put yourself into a box. Not me.
Currently have 1 x 20", 3 x 26", and 1 x 27.5". I need to get the BMX rideable though...