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September 24, 2017
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  • Jedro

    It looks like these are the same brakes as the Juin Tech R1 brakes, which are great

    • Came to say the same thing! I’ve got yet another re-badged version of the R1’s on my commuter, and they’ve stood up admirably to a Cambridge winter’s mistreatment.

      I only paid £109 for the set, with rotors, though, not sure where the extra cost for these is coming from.

      • James Huang

        The price listed here is the official MSRP, so “real” prices are sure to vary. That said, Yokozuna Reaction compressionless housing is very expensive on its own, so there’s some justification for these to be more expensive to some degree.

    • James Huang

      Hmm, I know I had mentioned that in one of my drafts, but I may have edited it out later on. Either way, yes, they are 100% identical, and in fact, they were also marketed at one point by Ashima.

  • jaysun mccunty

    Will a Sram lever pull enough cable ?

    • James Huang

      SRAM levers pull about the same amount of cable as Shimano (which is more than Campagnolo), and I can confirm that they pair well.

  • Fear Rothar

    Yokozuna describe this brake as a “closed hydraulic system” (http://www.yokozunausa.com/morodibr.html). By definition, this affects the brake in two important ways:

    1) The pads cannot self-adjust for wear.
    2) There is no means to compensate for fluid expansion due to heat from heavy and/or prolonged braking. Likely results are, initially, a different brake feel, followed by pads rubbing or, even, locking up.

    This leads me to ask, is Yokozuna’s description incorrect or do long-term users have to bear the above points in mind?

    • James Huang

      I checked with Yokozuna. The description is misleading. By “closed”, they really mean “sealed”, not a closed hydraulic system vs. an open one.

      • Fear Rothar

        Thanks for following up. While the misleading description is unfortunate, I am actually happy to hear that that is the case.

        • James Huang

          Sorry, I owe you an apology. After a little additional back-and-forth with Yokozuna (not to mention a more careful look through my own notes), it appears I was incorrect in saying that these calipers use an open hydraulic system. Indeed, it is a *closed* system that *will not* self-adjust the pads for wear. I was apparently too busy swapping various compounds around to notice.

          • Fear Rothar

            Your diligence is commendable. Thank you for the additional follow-up. It’s much appreciated.

            • James Huang

              Sure thing. Always better to suck it up and admit a mistake right away instead of figuring out how to get around it, I say.

              • Fear Rothar

                Note to self – words to live by. Cheers!

  • Brad

    So TRP or these? Who wins?

    • James Huang

      I still prefer the TRP Hy/Rd myself: nicer construction quality, larger fluid volume, more options for pad compounds.

      • ebbe

        And, to whomever it may concern, the TRP Hy/Rds now come in flat mount version as well

        • James Huang

          Yokozuna says flat-mount versions of the Motoko are coming in about six months, too.

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