I love the old oil cooled GSXR'S fantastic bikes. I have a slabside and a slingshot that I'm currently doing up as my winter project. The bandit 1200 is effectively the same motor as the gixer apart from a different cam and more displacement, it has exactly the same external dimensions, a mate of mine put a 1200 bandit motor in to a gixer and it all lined up a treat he changed the cam on it for a Gsxr one. These motors can be tuned to some mad crazy power and are as stated in another post fantastic to work on. The XR69 originally started life I believe in 76 as a GS 750 but by 78 it's was using a GS 1000 power plant. It's great seeing bikes from this era race on the mountain course once again, and no maybe not truly a 100% Formula one spec but still great to see.