Mech Disc - Road or MTB?

[theTallMan]

Making plans to convert a bike to drop bars and thinking to do TRP Spyre/Spyke brakes.  Spyre are short pull road and spyke long pull mtb.

Planning bar end shifters on an Origin8 Gary OS Sweep or Ergo OS Sweep.
Drop levers certainly more available in Road (short pull) style but if I switch back to flats the other way around.

Then again could do "Brifters" if I go "road" brakes.

Any reason to choose the longer pull over the shorter? Less tension on cable? More braking power?

The same questions would apply to BB7's.

[theTallMan]

Kinda talking to myself but it seams the Spyke might have a bit more power and some additional dirt sealing.
http://forums.mtbr.com/brake-time/trp-spyke-brakes-909691.html
The longer cable pull makes me think the compression in the housing would be less critical.....

[ElectricalGuy]

I think as long as your levers are matched to the brakes you choose you will have same performance.  I believe both the Spyre and Spyke  are the same brakes differing only in lever pull.  Regardless of which you choose, one of THE most important things is to use stiff compressionless housing to get maximum performance.  I am using drop bars with TRP Hy/RD as I am a firm believer in the extra power of hydraulics yet these are cable actuated all the way to the reservoir so not much risk of breaking a hose.  I spent the extra money and went with Yokozuna compressionless brake housing all the way between brakes and levers.  The stopping power is astonishing and would say they are every bit as strong as a full hydraulic system. But the compressionless housing and proper lever/brake matching is the key.