A seriouse case of bad luck i'd only had the bike a couple of weeks when it went the first time at that point I new nothing about rsv's and got very scared by how much the parts were going to cost and then a mate of mine offered me a new engine for less than the cost of parts about a month after the new engine went in that sprag went but with some help from kiwi we managed to tempery repair which lasted just over a week by this time I new a bit more about these things so then I replaced it with the bmw part and 3 months on its all good part of the problem was not being able to keep the bike on charge but with the uprated battery things have inproved a bit.