哈哈~樓上比喻得很有趣~其實你若有認真研究,這又是一部力不從心的設計,整車精度超出材料成受範圍,試想想若當年田宮願意在他的ABS或PC材質內添加尼龍或碳粉,根本不用等到Egress或 TOP FORCE 出現就可進入4WD的競賽世界了,當年我最佩服的是"嵌入式"組裝設計的改裝傳動軸,雖不是最優秀的設計,卻是傳統觀點的突破...
There was a upgrade part avaliable at that time.
Just like the Juggernaut, which Tamiya miscalculated the gear ratio, then they fixed it in the second generation, Juggernaut 2 and a full set of upgrading gear box was avaliable for the 1st generation Jug. But they were expensive. This is Tamiya's tradition: Customer pays for their own design fault.