The Kyosho UM574 Gear Box Set (Ultima SB) is a genuine Kyosho replacement part for the Ultima SB

Pair with Pro-Line's Prism SC Rear Tires for optimum performance

it keys together with the input gear so you retain drive even if the attachment screw works loose - an ideal OEM replacement for your 6S transmission

) Paint then peel the over-spray film off

Arrma ARA310962 15T Mod1 Safe-D5 Pinion Gear Kraton 8S 1/16 Slash Parts The Kyosho UM574 Gear BoxARRMA ARA310962 Pinion Gear, 15T HD Mod1 Safe D5 Keep a tough steel spare in your RC toolbox with this 15T Mod1 Safe D5 pinion gear. Its Safe D 'D' shaped bore keys to the motor shaft so you never lose drive or braking if the set screw backs out, making it a reliable OEM quality replacement for 5mm motor shafts. Features Strong, durable steel for long lasting performance in extreme conditions Precision wide tooth profile for smooth operation Safe D