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I have a 2009 Triumph Tiger.
I installed lowering plates for the back that dropped it about 30mm and lowered the front about 20mm.
I'm 5'11" with a 30" inseam.
I have an extra set of lowering plates so let me know if that is the route you decide to go.
I also installed risers on the handlebars so that they are about 30 mm higher.
I am very comfortable on it. I have been on all day rides without so much as a twinge.
I love riding it and have put over 9000 on it in the year that I have owned it.
LOTS of low end torque. Large powerband. The 1050 engine sounds great.
Smooth at high speeds. Very agile. Room for extra crap.
The stock wind screen is a bit noisy but I replaced it with an adjustable bracket to solve that.