Not much, swapped out the stock front wheel axle nut with a TI one, purchased on Ebay from PRC.....The TI nut looked good, threads had little slop, but it is ONLY 3 GRAMS LIGHTER than the oem Yamaha nut.!
This must be due to the integrated flange and a bit more height. The hex is 1 mm smaller, 21 vs 22 mm.
Well, at least it won't rust....
And, I managed to injure my right shoulder pretty badly at work. Was just lashing down some towed equipment on deck, using a large ratchet strap, when something seemed to tear in my shoulder. So here I am, on long term sick leave, but limited to "light duty" .....