Tamiya has released NDF01 Bevel Pinion 14T w/Ring Gear 39T OP-852 under NDF-01 category
NDF01 Bevel Pinion (14T) (w/Ring Gear (39T))
These choices components work only with the NDF-1 framework unless noted otherwise. Use with 53853 rushing Truck Wheels and 53854 V-Tread Block Tires to modify machine's gear and set motor load too appropriate degree.