don't change option motor mount. The material too week, my is twisted after few crash... not a big crash can KO it....poor...
But overall design is good, it would have no issue if you can change those 2.5mm screw to 3mm. It would be perfect, better performance than Xray.
另一個出 option motor mount 原因是因為上下螺絲設計可以移動馬達前D, 方便使用大pinion gear + 細spur gear. (下螺絲設計靈活性有限)
"TOP Racing have released this new optional carbon fibre & aluminium motor mount set for their Rebel 1/12th scale. The set is designed to allow for a more flexible gearing setup, allowing for a higher gear ratio when using smaller spur gears. The set is made up of 4 parts, which can also be bought separately." - RedRC