Hi just bought derbi senda xtreme sm 2002 and need an ignition switch.My problem is all the switches Ive seen on ebay don´t seem to be the right size there all 50mm where the bolts fit.Can anyone please confirm that the holes on a switch for my bike are a little wider then 50mm and if this is write that it will also fit through the clocks i cant afford to spend £115 on a new one then have it not fit.(seems to be a bad lack of manuals and so many models to do with these bikes)Thanks Bob.