The extrastiff chassis features milled pockets from the top of the chassis where all parts are connected or mounted to the chassis.
额外的刚性底盘的特点球磨的口袋,从顶部的底盘那里的所有部分连接或安装到机箱。
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By removing or adding screws you can easily adjust the stiffness of the top deck from very soft (for rubber tire racing) to extrastiff (for foam tire racing).