Hi There ! May I add my Best Wishes to all the other s you have rightly received from 'The Forum'.... A shoulder injury ( not bike related ) has kept me off my Bonnie ..... but pleased to say now in action again . My comment isn't directly related to your specific request for info , but this may be of interest to riders interested in screens / weather protection etc ... My Bonnie came with a Triumph screen approx 26cms 'tall' ..... I ride open face and wanted something at approx 40cms... A friend suggested I contact Skidmark Ltd based in Weymouth.... they specialise in screens and bike related bodywork... I e mailed them a couple of pics , and a note to say I wanted to retain the current high quality chrome fixings , so the bolt holes needed to match accurately to refit the new screen. A v helpful chap called Ian said he could help. I sent the short screen down and collected the taller one a few days ago. It fitted a treat , and I was v pleased with the quality , reasonable price etc . No buffeting / bugs in teeth at up to 70.... So , I my opinion a great firm to deal with.... This post may help other riders keen to keep some weather off as Winter approaches. Cheers !