1. Morooka MST300 crawler front idler rollers
2. We advise you to maintain your entire undercarriage and replace any worn items at the same time in order to ensure even wear since these rollers are sold separately.
3. On the Morooka MST300 chassis, there are one idler per side , which controls the direction of the track. And there are also track rollers, sprocket, top rollers, etc. On the MST800 chassis, which we also provide.