Just installed my sprockets on my '02 1150 GS, I am a skilled at wrenching so the job ahead didn't seem to bad, I printed off Lennies install instructions and followed them.
The job went very well, hardest part is slipping the chain off old sprocket. Also getting my big fat fingers in there
Otherwise the job went very well.
I love what it did to the power band, dropped it down and I like it very much.
Bike seems to run a little smoother but could be in my head maybe.
Quality of the Lennies sprockets are the best!! Job well done Lennie.
IMHO it is worth the money and once ordered they came to my door in 8 business days, also Lennie packages them to perfection for shipping.
If on the fence about doing this mod, do it!!