Hydraulic Road Disc Brakes Carnival/Extravaganza/Roundup

You take a few months off from blogging and, damn, stuff changes. So it is with the hydraulic road disc brake world. Many, many developments since my last writing. So many, in fact, that I bet we are in the midst (and will be able to say so with certainty, looking back a year or two from now) of a big upturn/inflection point in the “adoption curve” for disc brakes on road bikes. At this stage, we are really talking about the “acceptance” curve for disc brakes on the road…but, once accepted and understood as reasonable, the actual adoption will likely quickly follow. Particularly, of course, if there is hardware out there in the market and in the pipeline….bringing us to a bit of a roundup:

The first big-name product announcement (well covered, so I’ll skim) in this respect has been SRAM’s update to the Red line. Interestingly, they are bringing out both hydraulic rim and disc calipers. SRAM covered up the shots quickly, but there are plenty of places to still find them online:

(Source: Daily Grind Cycling Journal)

Kind of what you would expect for styling, frankly. Or, it’s hard to imagine how else they are going to fit the reservoir and whatnot in there without a bit bump on top.

Moving away from SRAM, rumors of some non “Big Three” manufacturers moving in on the hydraulic market are materializing. The most recently hyped of these was Magura’s “big” announcement (they at least made a big deal out of it) of an hydraulic rim system. BFD, IMHO. What is more, the Red hydraulic rim calipers look better than the Maguras anyway and will integrate with one of the

More interesting was this talk about some alternative hydraulic disc options…possibly with Di2 integration of some sort.

Well, here it is, apparently. This was a TRP (read more on the link to Bike Rumor) prototype (hence the funky hoods, etc.) but with Di2 buttons:

(Source: BikeRumor)

I still don’t really understand the Di2 hacking techniques (but, check out the crazy tuner forum at Fair Wheel Bikes if you want to learn more), and it seems like some of this is changing with Ultegra vs. Dura Ace, but, as I’ve been saying for a while now, if/once the Di2 “brain” is opened up, just about any option is possible.

In other words, I think the “paradigm” for electronic shifting is still set for a big shift (ha!): thus far all of the thinking (like with Di2) has held to the unquestioned assumption that shifting actuation must be controlled by something that, for all intents and purposes, conforms to the brake/shift model created by Shimano STI back in 1990 (or whenever). That’s what is going on with the TRP prototype. But, how long before those buttons will essentially be a kind of “cut and stick” customized model…in which case you just take any existing hydraulic lever and put the buttons where you want.

So, there we have it with the direct road disc material. But, even in the time spent drafting this little update, new material has rolled in from the North American Handmade Bicycle Show this week (NAHBS 2012) that should get me back to the “bike o’ the future” theme here as well. A couple of hints where this is going: internal gearing and electronic actuation.

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