Engine Number Query

Discussion in 'Triumph General Discussion' started by Scoot65, Dec 31, 2025 at 11:17 AM.

  1. Scoot65

    Scoot65 Well-Known Member

    Dec 3, 2015
    239
    93
    DURHAM
    The engine number on my V5 is six figures XXXXXX
    On the engine the stamped number is seven figures 1XXXXXX (the X's match the numbers on the V5). There's an additional figure 1 at the beginning of the serial number stamped on the engine.

    Does anyone know why this might be? Is this usual Triumph numbering?
    The bike in question is my 2005 Speedmaster 865.
     
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