Hey Deso, cheers for sharing your experiences - thanks for explaining about the oil thing, too. I was aware that using full synthetic is a big no-no while breaking an engine in, but didn't know that the oil they stick in it is actually thinner than the stuff that goes in afterwards. I certainly would expect the manufacturer to know what is best, but then I've also had a whole lot of naff experiences with bikes so far and it has been advice from people on here who have "been there and done that" that has helped me through it, while the manufacturers has done me very few favours, so I figure there is never any harm in asking if people have something to add. By extension, it's not that I don't appreciate Shorty giving his thoughts on the topic - I know that he's among the more experienced riders on here, just doesn't seem able to convey that experience in a way that doesn't come across as if he's talking to something foul that he's trodden in, and I don't take that sort of thing sitting down. Arwen - thanks also for your experiences. Yeah, scrubbing in the new tyres will be at the forefront of my mind too! Seen very mixed reviews on the stock Dunlops, overall the consensus seems to be that they're miles better than the stock rubber on the CRF250L in every possible way, but still far from the best option for the bike Think I'll be ok with the clutch, but the gearbox might take some getting used to. Ratios are wildly different to any bike I've owned before, and I've never owned a 6th gear before Think I'll have a chat with their service staff while I'm there, and have a flick through the service manual before I set off (they MUST have somewhere I can get a coffee, right? surely all good dealers do ). Start off easy while I'm getting a feel for the bike (and getting horribly lost trying to find my way out of Colchester) then give it a bit more spirit once I hit Haverhill, but not push it too hard at any point. And reward myself for my patience with an aftermarket can once it's been broken in