Grand Prix 250
Main Motorcycle: 2008 Bonneville Black
Join Date: Aug 2011
|Air Cooled Twins Technical Talk Technical Talk for Hinckley Triumph Twins: Bonneville, T100, Speedmaster, America, Thruxton, and Scrambler.|
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Easily solved. You need something called a star fangled washer, sometimes called a star fangled claw also. They use them in the mountain biking world and they are fitted into the fork head tube and allows the headset cap to be screwed into the forks. basically exactly the same set up as the mirrors on our bars.
Ebay should have loads of 1" washers for sale cheap and theres some quite helpful guides on youtube for fitting them.
You CAN install them on your hollow bars! I recently asked the same question and here's the tip I got from prior.....
I bought a pair of 1" star nuts from my local bicycle shop for a couple of bucks each - they even have the same thread as the stock mirror bolts. I installed them in my new tracker style bars (1" bars) - they take a bit of banging in, just take it steady and make sure to keep them straight and not in too far. I then made a sleeve for each end using a piece of copper pipe so that the mirrors push in nice and snug, just like on the OEM bars. All bolted up, the mirrors are very secure.
Nice to see you, Lapin! Haven't heard from you in a while. Would you happen to have a pic of these nuts? I've never heard of them. Thanks for resurrecting the thread.
I live my mirrors, but being universal (7/8" or 1") in my 1" bars, if I just bump them, they move and get loose. They'll stand up to the ton, but can't handle just a bump. I'd live to get them secured a little better.
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