I was pretty disturbed to hear cycle industry propaganda talking about 'hydraulic disk brakes freeing up frame space to allow manufacturers to innovate' sounds exactly like the MTB 27.5, boost and fat and plus wheel and axle options propaganda that have been floating around the MTB industry. On my bike with alloy Campaganolo or DT Swiss rims my 105 rim brakes with stock pads in the dry have exactly the same power AND modulation as the Shimano XT and SLX brakes I've been using for years on my MTBs. But rim brakes are so easy to set up, don't drag, don't need to be bled or the disk trued, also disk brake pads are expensive and can get contaminated quite easily.
I'm not against hydraulic disk brakes, they have their place, commuting, bike-packing, gravel and very good for companies not getting sued by people using carbon rim brake wheels and can save money as you only need to replace a disk not a rim and can be more aero. However in MTB riders were duped into leaving 26 inch for 27.5. All the best wheels and tires only in 27.5. 26 inch? 'Sorry mate not available'. And now 27.5 will be phased out being replaced by 29 inch. 20mm axles 12mm axles, boost spacing, plus spacing. The cycle industry trying to make more money but creating redundant dead end standards.
In the end as I've said before there is nothing really wrong with hydraulic brakes other than the weight and extra wrenching skill needed, but my worry is that all the pros will be forced onto disks by their sponsors and then everyone else will be left being forced in that direction. Buying a bike at the UCI weight limit or getting an entry level bike upgraded to that weight will become hugely more expensive, and if you live in a fairly low rainfall country it will be an almost completely unnecessary waste of money.
I'll compare this to MTB world and 26" wheelset bikes since im coming from MTB world. In 2008 i decided to replace my Stumpjumper FSR XC (with Risse Racing Astro 5 rear shock, and two links one who was making me 3" of travel, and other 4" of travel) with Specialized Epic Marathon Carbon bike.
Even the stumpjumper was lighter bike, i really like it a lot The Epic so decided to buy after a test ride. This is one of the bikes i really love. For me, best MTB bike i ever rode. Light enough, responsive, good climber, very stable.. Few years later, 29" wheelset hype started. I must admit that i was almost brainwashed about that, until i had a chance to try new Specialized EPIC 29" version and to compare with my bike. I realized that i dont like 29" wheelset at all. Less responsive, heavier, did not like at all (i was saying in that time, that 29" could not survive for all height peoples, and it will come back to 26" later. And then 27.5" happened
few years later).
Anyway, i was i worried that i'll have to replace the bike i like just because there is no more support as it is a old standard. But this was just worrying without reason
I'll just tell u that i still enjoy and ride this bike, and last year i send it for rebuild my rear shock, so now i have a new one which have warranty of at 3 years (and since is "old standard" the cost vas very cheap). Front Fork is Fox Float 32 RLC, which i can rebuild my self, and there is still all the parts i need for that.
Next, since i decide to keep this bike as long as possible, i just upgraded the Wheelset to Mavic CrossMax 26" for very low price
I wanted to do this in 2011, but this kind of wheelset cost was 1000 eur. I almsot done that but the last pair there was on stock in shop in Austria (i was on Holiday there), had a small crack, so i did not buy them then. Now i done that for 370 eur (ok, 470 eur when i calculate all the tax i payed and customs..)
Before i decided to upgrade the wheelset (i done that 2-3 months ago), i was worried that maybe i would not be able to find HighEnd tires since 26" is no more supported, so i was thinking is this is ok decision or not. Again wrong.. Maybe there is less choice then before, but i'll tell u that im waiting for Scwalbe Thunder Burt Evo SnakeSkin PaceStar 26" in 2.1" (i dont like wider then 2.1, and my perfect is 2.0"). As first i was impulsive to buy more tires, just to have them in the case it's not possible to buy nice tires, but after research i realized that there is still plenty of 26" tires available, so i just ordered what i needed at the moment.
BTW, there is some MTB Off Road segments around which are very popular. I can see that on my Old Fashioned 26" Specialized Epic Marathon Carbon, i have much better timing on them (specially HC Uphill segments), compared to a lot of guys on their Ultra Modern 29" Bikes
, so probably i'll upgrade my bike only if it's not usefull anymore (and i'll go for 27.5" in that case, not for 29". Or maybe 26" standard would return by then (as more stiff, more responsive and lighter
)compared to 27.5 or 29)
The new hype for Discs which we definetly not needed on road bike (ok, u need them if u like to ride Clincher Carbons wheelset (i dont see a point of riding a Carbon Clinchers at all, but this is other subject), or if u ride a lot in the rain), can lead that in one period of time we will have chance to buy "old fashined" but high end frames and parts much cheaper then u can buy them in this moment
So for me this can be nice part of this new Marketing Hype
and not worried at all
And there is something very special, when u beat some guy segment by big margin, who use only ASOS, ride his Latest Technology HighEnd bike in the fashion with everything which is "most modern, most advanced.." on ur old Fashioned Non Aero bike and heavy frame bike"