Hi, anyone got a 500 K3 or 550 K3 that could do me a a wee favour. I bought a pair of second hand rearsets off ebay a while ago hoping to use them on my 500K1 ... but the rear brake spindle is too big in diameter to fit in the hole in the frame ... ie the rearset part that replaces part 15 in the attached diagram is too fat in diameter. Its not miles out , maybe a millimetre at most. Would really appreiate if somone with a K3 could measure the diameter of part 15 in the ddiagram (part number 46515-404-670) and let me know . The spindle part number changes from the K1/K2 to the K3 , so wonddering if the rearset would fit a K3