Calnago - I can get a good price on a k8-s as a frameset but will not have a chance to ride. Any feedback on ride quality - compliance, reduction in road buzz, smoothness etc.Calnago wrote:@XCProMD... I'm now of the mind that you may be more correct than I was on this subject. So far, I think the Campagnolo offering in the Direct Mount brake department is kind of subpar compared to the quality and function of their standard skeleton brakes. I used them, tested them with various wheels, and have some new conclusions regarding Direct Mount brakes in general, and some specific conclusions about Campy's offering.
First the general stuff. The widest rims I have are Campy Boras at 24.2mm at the brake track. And I still use standard mount rims as well (odler Boras and Ambrosio Nemesis). For these rims I actually prefer the standard mount brakes... the geometry is such that they work very well, are simple, only need one hole (and non threaded) in a brake bridge or fork crown to mount... basically all the stuff that I've already rambled on about. Basically they are good and I questioned the need for something differernt.
But now we have wider rims... some really quite wide. In these cases, I think Direct Mount brakes are the better option. Not so much for height clearance, but becasue of the geometry of the brake arms and the pivot points on the stays. I just think they're better able to handle a rim of more significant width. So, there's the case for Direct Mounts. I'm still not sure if the Direct Mounts do as good a job as standard mounts for rims in the 20mm-24mm width range however. If you need height clearance however, for like 30mm tires or something, then I don't think there's any question that you should be looking at disc brakes.
I know i've raved about the new Shimano 9100 standard mount caliper brakes. They just didn't work so well with my Campy levers and rims even only as wide as my Campy Boras. I wanted to use them on my Koppenberg with my Campy setup. Didn't really work out. But I'm wondering if that combo would be more successful with a wider rim. Reason I'm saying this is that after testing and tearing apart the Campy direct mount offering, I am less than impressed. I think its overall quality is subpar compared to their current skeleton brakes. The rolling bushing between the two brake arms is pretty much completely exposed to the elements, whereas in the skeleton brakes the bearings and/or bushings are all very nicely sealed up and operate very smoothly. Basically, I think Shimano's hammered the rim brake market with their latest offerings and Campy seems to have dropped the ball. So perhaps they really did view the development of the DM brake as something they kind of "had to do" just in case it became a standard, as @XCProMd was suggesting earlier. And their disc offerings seem to be among the best, if not the best, road disc brake system out there, so Campy obviously spent some serious time and effort developing it. I think I've been wrong in assuming that Campagnolo was never behind the idea of disc brakes on the road. I still think they could have just as happily given it an easy passover, but given the trends in the market they seemed to take it serious enough to develop a very good product. Better than very good, excellent. Kudos to them.
Anyway, that's all. The bike I was using for testing all this stuff was a Pinarello K8-S, which ironically had a Campy DM brake caliper in the rear and a Super Record Skeleton brake caliper in the front.
Just thoguht I need to add that update, since I was kind of bashing on Direct Mount brakes becasue I didn't see a need for them. Still don't if you're running standard to a little wider rims. But if you want to go wider and still keep rim brakes... then yeah... DM brakes are problaby the way to go.
Had access to a Pinarello Dogma K8-S for testing out Campy's Direct Mount brake, which was kind of nice because of the DM on the rear and the standard mount on the front. The standard mount was definitely way smoother to operate, but I think that's more a function that the quality of their Direct Mount brake is a little sub-par for lack of a better description. I would like to do the same kind of testing between Shimanos' DM brakes and their Standard Mounts, but from everything I've seen on the Shimano side, they seem to be really almost identical in overall quality.
Lots of clearance on this frame...
Also what is max tyre size that can fit?
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From Katie Compton's husband's Twitter account.
What happens when two riders make poor decisions and can’t be patient on the first lap and squeeze Katie into a crash? Disc rotor cut to the bone. Not a happy way to end a great season
10:23 AM - Feb 10, 2018 · Kalmthout, België
If I had a direct mount brake bike I'd go buy a pair of the Shimano DM brakes and try them out right now. Hmmmm... could this be the lame excuse I need to get a Colnago C64? I've had lamer.
2018 BMC SLR01
No wonder my bike is so heavy at 17.5lbs ready-to-ride. I have Dura Ace pedals and brakes, lol.
Yes, and it works very well.
I have it on an Aeroad. Note that the pro-teams also ran this set-up pre Campag DMs
It works as good or better than any rim brake combination I've tried. I haven't spent time isolating component performance tbh, but I can assure you this combination works well.
Stiff, Light, Aero - Pick Three!!
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