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dumb question - will a mechanical disc frame accept hydraulic later on ?

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dumb question - will a mechanical disc frame accept hydraulic later on ?

Old 09-19-13, 07:57 PM
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dumb question - will a mechanical disc frame accept hydraulic later on ?

so from what i'm hearing entry level disc brakes aren't necessarily worth it as they're not any better than good cantis and just add weight and cost. but i want to make sure any frame i get is future-proof. so i think i might go for a bike with bad disc brakes just to get a frame that can later be upgraded to good disc brakes. but would it be possible to upgrade to hydraulic discs ?

i know for hydraulic i would need to upgrade more than just the brakes, but would the frame accept them ?

also as far as Di-2 ready frames go - is Ultegra Di-2 and Dura-Ace Di-2 the same in terms of what kind of frame you need to accept it later on ? is it even possible to get a Di-2 ready frame on an inexpensive bike ? does Di-2 get put on cross bikes often ? or is there any kind of issue with electronics and mud not mixing ?

and finally - are Di-2 shifters compatible with hydraulic brakes ?

Last edited by androgen; 09-19-13 at 08:05 PM.
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Old 09-20-13, 07:55 AM
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Hydraulic brakes will install on most frames designed for use with mechanical discs. You just need to make sure that it's capable of using full length housing (as opposed to housing stops for the brakes with bare cable in between).

I don't know much about Di2, but Shimano is making hydraulic brake Di2 levers.
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Old 09-20-13, 08:07 AM
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Avid bb7 mech brakes are still a damn good pric vs. performance proposition.
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Old 09-20-13, 11:57 AM
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the Shimano corporation is showing new stuff at Eurobike .. they will have the hydraulic Di2
stuff then , it seems .. if you want everything to be tidy and posh.
then plan on buying a new bike , when that stuff is released . in the next year.


Want a future proof bike now? get one set up for the Single speed races ,
and get in the fray Now , and pine for that ne plus Ultra bike for later ..

when you can keep in the same lap as the podium, 3, with your fitness and riding chops
developed by riding , then maybe the premium kit will matter ..

the Pros use the top shelf stuff , that's why they get it, It's their Job.

so the rest of the world gets the Idea its the gear that matters in making them fast.

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Old 09-20-13, 06:33 PM
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Originally Posted by Andy_K
I don't know much about Di2, but Shimano is making hydraulic brake Di2 levers.
that's good news ! Di2 is way outside of my budget but the march of Di2 is inexorable - sooner or later the technology will come to mid-range groupos, so a frame that's ready is a plus.

ultimately there is nothing expensive about the parts used in Di2 - it's just expensive because it's new, custom designed, works well, and has no real competition. once the technology goes mainstream the prices will plummet just as they did with flat screen TVs.

i predict that in 10 years most carbon bikes will sell with Di2 or equivalent systems.

Last edited by androgen; 09-20-13 at 06:36 PM.
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Old 09-20-13, 06:39 PM
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Originally Posted by rebel1916
Avid bb7 mech brakes are still a damn good pric vs. performance proposition.
i know but they don't come on many bikes that are of interest to me. for example the Tricross has BB7 but it doesn't even have a carbon fork and weighs a ton. on the other hand the Crux is a nice bike, but offers no mechanical discs at all - either Hydraulic or cantis. custom building is expensive.
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Old 09-20-13, 06:45 PM
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Originally Posted by fietsbob
so the rest of the world gets the Idea its the gear that matters in making them fast.
LOL. i know the only thing that will make me faster is training and diet. i just want good brakes so i don't break my neck and i want Di2 because in 10 years everything else will be obsolete anyway.

I don't want an actual Di2 bike now, because i know the prices will come down dramatically in the next few years, but i would like a frame that can accept it.
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Old 09-20-13, 07:21 PM
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and inflation will keep going and so the hours of your time spent trying to get the dosh to buy it ,
may increase..
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Old 09-20-13, 09:52 PM
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Originally Posted by fietsbob
and inflation will keep going and so the hours of your time spent trying to get the dosh to buy it ,
may increase..
inflation will affect mostly food and gas prices and other necessities like electricity and heating. i really don't think it will affect high-tech stuff like Di2. of course if it gets to the point where we cant afford to eat chances are we won't be buying a Di2 Carbon bike either
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Old 09-21-13, 06:29 AM
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The frame will be fine. As long as it has the tabs to accept disc calipers and has the right spacing (what 135mm?) to accept rotors, the frame doesn't know the difference between mechanical linkage or hydraulic.
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