This is a black MS chassis with flex and gear positioning already processed! ✨️ (12 wins ✨️) The underside bow prevention is silver carbon. Each chassis takes time, so it's first come, first served! You can use it immediately after inserting the gears and attaching gimmicks! ✨️ Having used over 50 MS chassis in the past, I've processed it to minimize torque loss, and there is no weight reduction on the back of the battery holder, etc. It's handmade, so there may be slight differences in the processing, but there are no problems in use. Please refrain from purchasing if you are concerned about minor details. This comes with a broken-in Mach Dash motor. Please use it together! ✨️ We also handle many other products, so we look forward to your combined purchases ✨️ Recommended bundle: ↓↓↓ Motor pin counter shaft Low-friction processed counter gear "SLIP STREAM 707" Various motors #Mini4WD #Processed #FinishedProduct #MSFlex #MS #HyperDashMotor #MachDashMotor #TorqueTuneMotor #SprintDashMotor