I don't agree w/every modern standard, but here's my 2 cents on 12x142 after switching to it on my new frame: 12x142 - 1.) Most good+widely available 135mm rear hub adapt to it(my hope pro2 for example) 2.) Because you're still using your old 135mm hub you don't have to run any different bearings or freehub or w/e 3.) Any frame with a 12x142 rear end comes with an axle, and I'd be willing to bet it's pretty darn reliable(let's be honest they've been making 12mm rear axles/maxles/rws axles for awhile now) 4.)12x142 rear dropouts are keyed for the hub so the wheel w/slide in and bolt up without you having to align the axle and whatnot. I think 15mm front axles are unnecessary when a 20mm will more than do the job. Tapered steerers are noticeably stiffer than straight 1 1/8" steerer and you don't have to buy a dumb 1.5" stem. Straight 1.5" steerers are just dumb from the get go and should have never existed(it will die).