塔罗牌450 PRO斜121T主起落架 - 黄色（TL45156-04）
牙型： 螺旋 （必须带螺旋小齿轮使用）
Unfortunately the gear is oval shaped useless to put it on my 450 because or much slob or messing with the pinion and thrown it away. Better luck next timethese are a little thicker that the trex ones. I think they are better!as per my other review sad that Hk doesnt have the pinions as wellWorked fine in my T-rex 450 Sport V2 - could take full RPMs without stripping, unlike some aftermarket gears. Would like to purchase more if only there were stock.