• Thanks for the info guys! I do have a digital measuring apparatus, but I doubt it is accurate enough.

    That said, I think I may have identified the cranks. If anything, they bare a whole lot of resemblance to my cranks. They also do (or did) a tandem version. Not sure when they started doing these, but I guess 9-speed era would be a safe guess.

  • They’re very similar, but I’d be surprised if your ‘B-Space’ cranks are rebadged Middleburns. I don’t think they ever made OEM specials.

    Do yours have a modular spider?

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