The denso spark plug for yamaha bt 1100 2002-2006 is part of the latest collection from denso.Features: improved head dissipation standard u-groove low centre copper core heat resistant nickel jacket specifications: center electrode type: standard electrode tip material: nickel alloy product name: spark plug research value: finalized riding style: adventure touring dual-sport off-road street type: resistor type units: each to fit: bmw r 100 cs 1980 classic sport all models bmw r 100 cs 1981 classic sport all models bmw r 100 cs 1982 classic sport all models bmw r 100 cs 1983 classic sport all models bmw r 100 cs 1984 classic sport all models bmw r 100 rs 1978 all models bmw r 100 rs 1979 all models bmw r 100 rs 1980 all models bmw r 100 rs 1981 all models bmw r 100 rs 1982 all models bmw r 100 rs 1983 all models bmw r 100 rs 1984 all models bmw r 100 rs 1986 european models bmw r 100 rs 1987 all models bmw r 100 rs 1988 all models bmw r 100 rs 1989 all models bmw r 100 rs 1990 all models bmw r 100 rs 1991 all models bmw r 100 rs 1992 all models bmw r 100 rt 1978 all models bmw r 100 rt 1979 all models bmw r 100 rt 1980 all models bmw r 100 rt 1981 all models bmw r 100 rt 1982 all models bmw r 100 rt 1983 all models bmw r 100 rt 1984 all models bmw r 100 rt 1987 all models bmw r 100 rt 1988 all models bmw r 100 rt 1989 all models bmw r 100 rt 1990 all models bmw r 100 rt 1991 all models bmw r 100 rt 1992 all models bmw r 100 rt 1993 all models bmw r 100 rt 1994 classic all...