In 2002, BMW launched the R1150RT, providing the same basic platform as the predecessor R1100RT but with increased engine capacity and horsepower, fully linked power-assisted ABS brakes, revised front lighting system, and a six-speed gearbox. This model was further updated in 2004 by the addition of two spark plugs per cylinder. The examples with two spark plugs per cylinder are generally referred to as 'twin spark'. The photograph above is of my 2004 twin spark bike. The R1150RT was superseded by the much acclaimed R1200RT in 2005.
