OK, the Trumpy's developed a new sound, and I can't identify what it might be. Have narrowed it down to something to do with the front brakes. There's an irregular clicking/ticking sound coming from somewhere around the front wheel, only under brakes. It slows down when reducing road speed, but is not regular. It's not very loud (heard best with the engine off). Can't find anything loose (bearing play is OK ) Nor anything in the path of the disc or wheel. The pads are OK. Any ideas?