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Ultra Build Using Frey Frame

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    Ultra Build Using Frey Frame

    New build using an Ultra motor from Luna. Principal specs:

    —Bafang Ultra motor
    —52V 17.5aH Battery
    —Egg Rider V2 Display

    —Rohloff 14-speed Internally Geared Hub (for through axle frames)
    —Lauf Grit Carbon Fiber Fork

    —Custom CNC-machined Chainring Spider
    —Cirrus Kinekt Suspension Seatpost
    —Brooks B17 Saddle

    It was a fun build with some unique challenges. On the road now for a few weeks--rides beautifully.

    Well done! Is the chain ring spider your own creation, or aftermarket? If aftermarket, are there different widths available (a common Ultra issue, it seems)?
    BBSHD / BBS02: Nexus / Alfine 8: 1 2 3 4 5 6, Rohloff: 1 | PHOTON: Alfine 8: 1 2


    • badrab
      badrab commented
      Editing a comment
      Thanks ncrkd, I got the spider on eBay because the one that came with Luna's Ultra was for fat bike frames and the Frey's hardtail frame uses Boost spacing. Here's the listing:

      cheers, pete