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    BOR Crank XM557 2X SmartSpindleSystem 2-speed BCD 104 | 64 with Chainrings

    Item no.:

    Product weight:560g
    487,50 € UVP: 549,00 €
    You save 11,2 %, that is 61,50 €
    including 19% VAT. , no shipping costs
    • 1-3 days
    Length Crankarms

    Article details

      BOR crank XM557 2X SmartSpindleSystem 2x LK 104 | 64

      The XM557 crank the German manufacturer BOR based on the proven XC666. However, changes and advancements let the weight of the XM557 continue tumbling down. In detail, this means a weight-reduced Lockring that secures the optimized Spider. The crank arms have been calculated once again and could lose a few grams. The arms are mounted on an aluminum shaft with 30 mm diameter to meet even most powerful sprinter with best Steigikeit.
      BOR typically comes also the proven Smart Spindle System is used, which makes it possible to build the crank in almost any context. Furthermore, even the Spider can replace. The crank is therefore prepared for any future changes.

      The CNC machined chainrings BOR aluminum are as always hardened in a special process with a glass mount peening and then anodized with double the usual thickness. This Double Surface Treatment gives the leaves by a significantly increased shelf life!
      The size chainring has various switching ramps and -gassen, providing a fast and reliable switching operation.

      Made in Germany!

      Technical specifications:

      intended use: Cross Country, Marathon, Tour
      Material: alumnium (7022, 7010, 7051)
      Crank arm: 170 mm, 175 mm (165 mm and 172.5 mm on request)
      Shaft: 30 mm diameter
      Q: 164 mm
      Chainring spider: 2-fold with LK 104 | 64 mm
      chain line: 49.5 mm
      Bottom bracket: BSA, BB89,5 / BB92, BB30, PF30, BBright MTB, BB386 EVO MTB (optional)
      Chainring: 34 - 20, 36 - 22 and 38-24 or 40-26 teeth
      Compatibility chain: 10x, 11x
      Color crank arms: black
      Color Spider / crank bolt: black, orange, red, blue or acid green

      Weights without bottom bracket:
      560g 34-20 teeth
      570g 36-22 teeth
      580g 38-24 teeth
      590g 40-26 teeth


      1x cranks
      1x Spider
      1x large chainring
      1x small chainring

      without bottom bracket

      Product weight:560g