Review on 🔧 Enhancing Efficiency: Pack M8 1 25 Flange Yellow U Turn - Ultimate Solution for Improved Performance by Bobby Montoya

I was able to use these M8 120mm x 1.25 motor mount bolts to replace the motor mount bolts in my grom clone (Taotao Hellcat 125 but I think Vaders and other clones use screws the same size). The original bolts, one 110mm and the other 120mm, were marked "12.9" and one of them (rear, 110mm) broke, causing an uncomfortable rumble and vibration. I think you could use 110mm or 120mm bolts to replace both originals. (There is no need to buy a pack of each length) but I wanted to add extra washers and locknuts if I wanted to so I settled on 120mm bolts. This has the advantage of a longer unthreaded part and the screw that broke on me broke right in the middle of the thread. I also added some rubber washers I made from the fuel hose to dampen the vibration and possibly prevent another failure. A few weeks after replacing the broken bolt I also replaced the unbroken bolt and added some washers which seemed to reduce the vibration even further. It definitely doesn't feel too tight and they'll probably be ok at 25-30 ft lbs which I might try if that reduces the vibration even more - after all I have 5 of these if one of them breaks. If they ever break for me I'll try to remember to update this review but so far these screws seem good to me.