Hello Howard, I forget !! But it sounds like me ! History is repeating it's self, I have bought a cheap 2 point fixing type for the Comet, And it's driving me Mad ! Every time I give it one, It shifts or breaks something. One more time and Lookout Hedge !!. The one on the Twin is from USA, National Cycle, Street Shield, 4 point fixing !, I think you can get them over here, But I was short of cash !. But being me, I think I took an inch or two off the top !. Nice to see you are still getting out on the Egli + Comet !! All The Best, Bill.