Not mine (which is about 137,000) but a good friend in my touring club has had a Rohloff since at least 1999. Don't know what his number is but must be around 2,000 or so. He does have more than one - one on his touring bike and one on his tandem. Not Thorns though - both are self-built frames that he has designed to suit his proportions (he is a very tall man).