Having recently sold an Industry Standard Gravelling Appliance, I know how difficult it can be, and its probably because of articles like this:Granted, according to Salsa the ISGA I sold can fit 50mm, but still, its a model thats been around awhile now, and the shelf life for these things is only a few years at best:If youre thinking of buying a new gravel bike this year, stop right now and check whether it has at least 50mm of tyre clearance. If not, dont buy it.While 40 to 45mm of tyre clearance was considered adequate a few short years ago, things are moving fast in the world ofgravel ridingand those bikes are now outdated.And you dont want to ride around on an outdated gravel bike, because then nobody will invite you to join the fun:In this regard, my gravel bike (or its fork, specifically) has reached its limit. If wheels and tyres trend even wider in the future, Ill need to upgrade to join in the fun.Would you be caught dead riding with someone who had a gravel bike that didnt fit 50mm tires? I sure wouldnt! It makes me think of the kid we used to make fun of in school because he wore hand-me-down clothes and still had bellbottoms, which in retrospect was really disgusting behavior on our part, but in the end he got the last laugh because eventually they came back in style again, whereas Im a washed-up bike blogger.But unlike bellbottoms, gravel bikes with clearance for 40mm tires are not at all groovy, and so they will never come back in style again. NEVER. Theyre a technological dead endlike a cassette tape, or a fleam, or this blog.Or a road bike with rim brakes:To put it another way, a gravel bike with clearance for 40mm tyres now feels akin to aroad bikewith maximum clearance for 28s.That bike could be fantastic, and you could experience most of the best road cycling has to offer, but much like aroad bike with rim brakes, its a technological dead end.Wait.What the hell did I just read!?!TAKE THAT BACK!This can only be the universe punishing me for laughing at that kids bellbottoms, because it is just hurtful and wrong. How DARE you call road bikes with rim brakes a technological dead end! HOW DARE YOU.[Intern: insert Greta GIF here]Calling a road bike with rim brakes a technological dead end is like calling Michelangelos David an oversized paperweight:It immediately marks you as a philistine, for both the road bike and the statue are purity of form embodied, the fusion of strength and elegance, and the epitome of artistry. They transcend the materials from which they are made, and the hands that shaped them have reached across the ages and presented you with something timeless. Indeed, to see a classic road bike and get hung up on the rim brakes or the tire clearance is like looking at David and giggling at hisappendage.Though in total fairness Daves handDoes appear to be a little bigger than his face:And you know what we used to say it meant when your hand was bigger than your face? Yes, if we werent ridiculing kids for their clothes we were doing the old hand-to-the-face trick. Wow, we really were awful, werent we?So yes, a road bike with rim brakes is like a Renaissance masterpiece, while a gravel bike is cartoonish and bloated, like those sculptures by this guy:Sure, theyre fun and appealing and all that stuff, but they dont really speak to the soul, now do they?Plus, rim brake road bikes arent a dead end because all you need to do is make the rim brakes bigger and they work on gravel just fine, thankyouverymuch:Look at that, ample tire clearanceAND elegance, both on the same bike:Amazing.